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  • FlorinJ commented on bjkayani's instructable Outdoor Pizza Oven22 hours ago
    Outdoor Pizza Oven

    Ehem ... someone from yet another end of the world here.No need for firebricks and refractory mortar. In my part of the world, traditional bread ovens are pretty much unchanged since Roman antiquity: a heavy build of regular fired bricks and clay - no cement. The clay is left to dry for months, after the oven is built, then, upon the first firing, the heating is slow and progressive, until the oven, in spite of its thick walls (up to 16"/40cm) can't be touched. The inside becomes a compact mass of low-fire ceramics, the outside hardens just enough to resist wear. The only way to damage such an oven, besides a bulldozer, is to throw a bucket of water into the fireplace when the oven is glowing hot. (And it bakes like no modern oven does.)My point: if the oven in this ible survived i...

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    Ehem ... someone from yet another end of the world here.No need for firebricks and refractory mortar. In my part of the world, traditional bread ovens are pretty much unchanged since Roman antiquity: a heavy build of regular fired bricks and clay - no cement. The clay is left to dry for months, after the oven is built, then, upon the first firing, the heating is slow and progressive, until the oven, in spite of its thick walls (up to 16"/40cm) can't be touched. The inside becomes a compact mass of low-fire ceramics, the outside hardens just enough to resist wear. The only way to damage such an oven, besides a bulldozer, is to throw a bucket of water into the fireplace when the oven is glowing hot. (And it bakes like no modern oven does.)My point: if the oven in this ible survived its first firing, the mud probably partially became low fire ceramics, and the oven is now pretty much safe to use. Just make sure it's dry before firing it, or heat it up slowly, so humidity can leave the oven walls without cracking them.

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  • FlorinJ commented on fixthisbuildthat's instructable 5 Ways to Print on Wood2 weeks ago
    5 Ways to Print on Wood

    How about laser printing the mirrored image on transparent foil, then gluing with a completely transparent glue and the image on the inside? You would not need to apply lacquer and the actual print would be protected from the elements.

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  • FlorinJ commented on manuelmasc's instructable HDPE Blocks From Plastic Bottles4 weeks ago
    HDPE Blocks From Plastic Bottles

    Don't worry, they are also easier to scratch and then they'll no longer be easier to clean :-) OTOH, you can always make new ones with only the cost of the gas/electricity to re-heat the old ones.Pressing the melted HDPE into more complex shapes to make a bathroom mat was my first thought, though, so I can understand why you made tiles out of them.

    In the same vein as the one suggesting ironing the boards through a sheet of baking paper, you could roll over the baking sheet with a somewhat thicker iron rod heated a bit - not red hot, that would melt the plastic completely.I wouldn't expect a thickness planer to leave plastic completely smooth. Plastic chips differently than wood, I'd expect sort of a grainy texture, almost smooth but not quite, to remain on the board.What you could also do is spread some acetone on the board, and let the board dry out slowly after brushing the surface with a soft paint brush. Acetone dissolves polyethylene, brushing across the board with a soft paintbrush would probably dissolve the rough edges standing out of the surface and fill the grooves with the resulting solution.

    You can only microwave materials which are at least somewhat conductive, or contain particles or substances which are conductive. Plastics in general are insulators. HDPE absorbs very little water, so clean and dry HDPE can most likely not be heated in a microwave owen.

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  • FlorinJ commented on matt's instructable The Original Potato Cannon1 month ago
    The Original Potato Cannon

    You could use a potato gun with legumes as bird shot, then :-)

    Sure you can. It will reduce the range, though.

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  • FlorinJ commented on mikeasaurus's instructable Unusual Uses for WD-401 month ago
    Unusual Uses for WD-40

    Hardened polyurethane foam or adhesive is impossible to get off your hands, once cured - it seems nothing that doesn't dissolve your skin first is able to dissolve it. Thoroughly greasing your hands, leaving them to stay so for a while (I grease my hands thoroughly with spent cooking oil, then put on a pair of rubber gloves, for up to half an hour), then gently rubbing with a rough cloth peels off most of the polyurethane without taking too much of the skin with it. I wonder if WD-40, with its penetrating solvent and fat residue, might work for cleaning polyurethane off your hands. (I've gotten good at not getting polyurethane on my hands, though, so chances for me to try this out soon are small.)

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  • DIY Concrete and Steel Outdoor End Table | How to Build - Welding

    How about making the stand first, attaching it rigidly to the form so that the top part is embedded in concrete, and then pouring? You could use thinner rebar, maybe some thick wire mesh, at the top, providing some reinforcement for the concrete. Would that work? If yes, I think it would be less work overall.

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  • FlorinJ commented on edyson-'s instructable Old Chair Transformation1 month ago
    Old Chair Transformation

    I was thinking something along the same lines :-)

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  • Simple Sled for Perfect Segmented Bowls

    If you know what a segmented bowl is, it's obvious. If you don't, no amount of description will be of any use.

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  • The Smallest Workshop in the World

    Might give you a few ideas about building the lathe: He also has lots of other videos about building tools.

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  • FlorinJ commented on geotek's instructable Making Box Joints2 months ago
    Making Box Joints

    :-) I have a (self-made) jig that can cut any finger/gap width that's a multiple of 2 mm - that's the step length of the threaded rod I have used (about 1/12"), and also very close to the kerf of the blade I use - the blade is 0.1 mm wider, just enough for 6-8 mm fingers to fit tightly but not too tight into the gaps . For example, for 8 mm(~ 1/3") fingers/gaps, you'd cut every step for four steps/turns of the threaded rod, then skip four turns, and repeat.

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  • FlorinJ commented on aCuriousCreator's instructable Wooden Biltong Box2 months ago
    Wooden Biltong Box

    Tearout: tape won't cut it. You need a different blade.

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  • FlorinJ commented on geotek's instructable Making Box Joints2 months ago
    Making Box Joints

    You can make finger joints using a regular blade too. You only have to make more passes for one slot. You just need a mechanism or something to precisely control advance in relation to your blade's thickness. I've seen two variants so far: one using a screw with a known step size and another one using cogwheels. The simplest one, which I partially replicated, using a screw, is on the darbin orwar channel on youtube. It should be probably easily guessable: the one using cogwheels is also exemplified on youtube on Matthias Wandel's channel.

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  • FlorinJ commented on jessyratfink's instructable Unusual Uses for Rice3 months ago
    Unusual Uses for Rice

    Those who starve are no more your problem than global climate change is. As technology evolves, our planet sort of becomes smaller - it's more connected from more than just one point of view. Social or economical or environmental problems across the world affect your life too - here's an example: http://abcnews.go.com/WNT/story?id=129787&page=1. That makes hunger in Africa your problem too. For one, hunger and lack of education is fueling radical Islamic terrorist propaganda. 9/11 wasn't your problem either, right?But that's already way off topic.

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  • FlorinJ commented on jessyratfink's instructable Unusual Uses for Rice3 months ago
    Unusual Uses for Rice

    Most wood cut into planks or boards at timber yards, or used for furniture by artisan carpenter shops is not treated in any way. Some exotic wood species are irritating when their sawdust is inhaled. Few are right-out toxic. Sawdust sold for cat litter or bird cages is also not treated in any way, just pressed.

    Salt is as much food as sodium bicarbonate, sodium nitrate, sodium glutamate (found naturally in large quantities in tomatoes and matured cheeses) or sodium benzoate (used as a preservative, but also produced naturally in the body when digesting cinnamon) are.Sawdust is bad for fine mechanism. It does not ruin electronics. Plus, it depends on the graininess. You'll have a hard time cleaning very fine sawdust that has gotten into your phone. But coarser grain sawdust, such as thickness planer shavings, are safe.Rice will last for years, if kept dry. Insects can also not infest food kept in closed containers.

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  • FlorinJ commented on jessyratfink's instructable Unusual Uses for Rice3 months ago
    Unusual Uses for Rice

    I spent most of the summers of my childhood either in the countryside or high up in the mountains. In traditional homesteads, leftovers went to the pigs and hens, if there were any leftovers at all (dogs gobbled them up first, usually). High up in the mountains chances are high that spreading leftovers around will attract unwanted visitors to your camping place. Hence, I don't like wasting leftovers.I tried most of the things I described above myself, and can tell for sure that at least for most of them rice does not at all work better than sawdust. Or salt, or spent coffee grounds, depending on the specific use. Also, most sawdust is absolutely safe. I haven't heard of anybody getting poisoned from the use of wooden cutting boards or wooden spoons.There is plenty of food on the shelves...

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    I spent most of the summers of my childhood either in the countryside or high up in the mountains. In traditional homesteads, leftovers went to the pigs and hens, if there were any leftovers at all (dogs gobbled them up first, usually). High up in the mountains chances are high that spreading leftovers around will attract unwanted visitors to your camping place. Hence, I don't like wasting leftovers.I tried most of the things I described above myself, and can tell for sure that at least for most of them rice does not at all work better than sawdust. Or salt, or spent coffee grounds, depending on the specific use. Also, most sawdust is absolutely safe. I haven't heard of anybody getting poisoned from the use of wooden cutting boards or wooden spoons.There is plenty of food on the shelves of Western stores. Still, millions of people worldwide starve, tens of thousands of small children dying of hunger each day - http://www.worldhunger.org/world-child-hunger-facts/. (FYI, that's not a horror movie, it's horror reality, only, it's easy enough to ignore if you have plenty of food on your table.) Which is why I try not to waste food.And it's spelled mcgyvering.

    Rice is food. I was brought up to not use food for non-food purposes, at least not in large quantities.For most of the uses I described, I know first hand that they perform better than rice.Plus, about salt and sawdust. At least around where I live salt is abundant and cheap - we literally have a mountain of it, and that isn't even the biggest salt reserve around here. Sawdust is a byproduct, a problem most woodworking shops need to deal with, not a waste of resources perfectly usable in other ways. Sawdust is also renewable - all you have to do is let another tree grow. And another plus: you probably can't reuse rice hundreds of times. It will catch mold, once it has absorbed enough humidity. Even if it doesn't catch mold, once food moths discover that you keep rice in an openly access...

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    Rice is food. I was brought up to not use food for non-food purposes, at least not in large quantities.For most of the uses I described, I know first hand that they perform better than rice.Plus, about salt and sawdust. At least around where I live salt is abundant and cheap - we literally have a mountain of it, and that isn't even the biggest salt reserve around here. Sawdust is a byproduct, a problem most woodworking shops need to deal with, not a waste of resources perfectly usable in other ways. Sawdust is also renewable - all you have to do is let another tree grow. And another plus: you probably can't reuse rice hundreds of times. It will catch mold, once it has absorbed enough humidity. Even if it doesn't catch mold, once food moths discover that you keep rice in an openly accessible location, you'll spend years trying to get rid of them, unless you immediately throw that rice out.

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  • Concrete Countertops for the Kitchen - a Solid Surface on the Cheap

    You can also use some acid stain to give it more color.

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  • FlorinJ commented on bennelson's instructable Build Your Own Electric Car!4 months ago
    Build Your Own Electric Car!

    You could probably significantly enhance the autonomy by using lifepo4 batteries - they store more than 2.5 times as much energy as lead acid batteries, for the same weight, and their capacity decays a lot slower in time - ~1000 reloads for lead acid vs ~2500 for lifepo4. In the long run, this might save you some money - at the cost of an maybe five times higher up-front investment (for new batteries of both types, I don't know if you can get second hand lifepo4 batteries).

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  • The Single Most Effective Way to Get Rid of a Sunburn

    Not everybody is similarly sensitive to sunlight. I'm white as chalk, and my skin has only three states: 1) white, 2) fiery dark red and 3) peeling off, and it only takes about 45 minutes of sun at noon for me to go from 1 to 3.By comparison, my sister becomes chocolate dark in the summer without even staying too much out in the sun, and never ever experienced skin peeling from the sun. She can sleep a whole day in bright sun (she did, by mistake, as a child), and the only thing she gets from this is thirsty.We live in the same city, it's only that her skin is way better than mine at secreting melanin.

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  • FlorinJ commented on F4916's instructable How to Desalinate Seawater4 months ago
    How to Desalinate Seawater

    You can't always afford to make fire, in survival situations.

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  • FlorinJ commented on neilmendoza's instructable Fish Hammer Actuation Device5 months ago
    Fish Hammer Actuation Device

    Goldfish, additionally to the lateral line, also have an inner ear. They do not emit sound, but they seem to be able to build up a model of their environment based on what sounds they hear.You probably won't find any research answering specifically to the question of whether goldfish can locate objects using sound. Research is usually a lot more focused, since goldfish are the lab rat for fish hearing research, having a very high performance hearing system. Like for example this study - in layman's terms, it studies how well goldfish can tell from what direction a sound is coming, specifically using their inner ear, not the lateral line:https://www.ncbi.nlm.nih.gov/pubmed/8520933This research goes even further, stating that goldfish specifically can process reverberations, reflections a...

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    Goldfish, additionally to the lateral line, also have an inner ear. They do not emit sound, but they seem to be able to build up a model of their environment based on what sounds they hear.You probably won't find any research answering specifically to the question of whether goldfish can locate objects using sound. Research is usually a lot more focused, since goldfish are the lab rat for fish hearing research, having a very high performance hearing system. Like for example this study - in layman's terms, it studies how well goldfish can tell from what direction a sound is coming, specifically using their inner ear, not the lateral line:https://www.ncbi.nlm.nih.gov/pubmed/8520933This research goes even further, stating that goldfish specifically can process reverberations, reflections and temporal patterns to locate the source and nature of sound:https://link.springer.com/chapter/10.1007/978-1-46...A cylinder or a bowl tend to focalize external sound towards a single point in the interior, putting stress on the fish'es hearing. If the fish finds itself in such a focal point, his hearing sense will be stressed - the usual sound processing pattern he uses will get a kind of signal the fish is not capable of processing.Think of us and vision. If somebody puts up a set of mirrors so that you see his reflection in many directions at once, you won't be able to tell which image is the original. This can be stressful.At their origin, goldfish were common carps, living in ponds with water too murky for visually detecting predators or food at a long distance. Their vision and hearing were shaped by that environment. A species not able to detect predators at a distance wouldn't be as successful as the carp.

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  • FlorinJ commented on neilmendoza's instructable Fish Hammer Actuation Device5 months ago
    Fish Hammer Actuation Device

    Don't keep goldfish in bowls or cylinders. They use echolocation. When they're near the center of the bowl or the axis of a cylinder, they shout in their own ears.

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  • FlorinJ commented on aliceniraimathi19's instructable How to Make Skeleton Leaves5 months ago
    How to Make Skeleton Leaves

    Could you use these as stencils? Place on a flat surface, spray some paint on top, to get a leaf impression on the surface?

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  • FlorinJ commented on Mic100's instructable Make LadyBug Simple Cheap Vibrobot5 months ago
    Make LadyBug  Simple Cheap Vibrobot

    Nice! Now make it fly :-)

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  • FlorinJ commented on danthemakerman's instructable Letter Opener Made From Junk Mail8 months ago
    Letter Opener Made From Junk Mail

    The material itself would probably lend itself well to be machined into various items on a CNC router.

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  • FlorinJ commented on woodbywright's instructable How to Hand Cut Dovetails8 months ago
    How to Hand Cut Dovetails

    If someone has a problem with chisels, he can use a rasp. My point was more about not taking off too much material initially, since you can't put it back, not so much about the tools used.

    If someone has a problem with chisels, he can use a rasp. My point was more about not taking off too much material initially, since you can't put it back, not so much about the tools used, and, as an addition, specifically for beginners, about how to use the tools so they don't take off too much material.

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  • FlorinJ commented on woodbywright's instructable How to Hand Cut Dovetails8 months ago
    How to Hand Cut Dovetails

    I suppose most woodworkers know this, it's meant for people who are just learning: cut on the inside of the material to be removed, both when you chisel away at the bottom of the pins and when you saw the sides of the pins.What do I mean by this: each cut has a finite width - one that's large enough to create unsightly gaps, if the cut is done on the wrong side of a marking, and also affect the joint's strength.A cut should be done by placing the saw slightly towards the material to be removed, not centered on the marking, so that ideally you cut down along the edge of the marking, not right through the marking. You can always chisel away material after the cut is done, if the fit is too tight, but there's no way you can add material back, once you removed it.A chisel pushes in both dir...

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    I suppose most woodworkers know this, it's meant for people who are just learning: cut on the inside of the material to be removed, both when you chisel away at the bottom of the pins and when you saw the sides of the pins.What do I mean by this: each cut has a finite width - one that's large enough to create unsightly gaps, if the cut is done on the wrong side of a marking, and also affect the joint's strength.A cut should be done by placing the saw slightly towards the material to be removed, not centered on the marking, so that ideally you cut down along the edge of the marking, not right through the marking. You can always chisel away material after the cut is done, if the fit is too tight, but there's no way you can add material back, once you removed it.A chisel pushes in both directions, when being driven into solid material, therefore, upon the initial cut, don't place it right on the marking, place it a hairline's thickness away from the marking - once the thick material is removed, you can come back and nibble away at the remaining thin layer without much push forward, towards the marking, as you'd have if you drive it in while there'd still be solid material at the back of the chisel.

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  • FlorinJ commented on wold630's instructable Non-Toxic Adhesive Removal8 months ago
    Non-Toxic Adhesive Removal

    I described how I use paraffin candle oil in another comment. I suppose this should work on your poly-carbonate/acrylic plates too - to my knowledge, paraffin oil does not affect those materials. Given that they are dried over a long time, however, you might have to do some rubbing/waiting before the solvent penetrates the glue layer.

    What I use: paraffin candle oil. I always have some at home. How I do it: soak the label in water, and, once softened, scrape what comes off - the smooth, paint-covered surface of the label otherwise prevents the oil from reaching the glue. You don't have to do a very good job of removing the paper so far, you just have to end up with a porous paper surface, instead of the smooth, sealed one that the label initially had. Put a few drops of candle oil and rub it into the paper - that's why you wanted a porous surface, the oil would not easily reach the glue through the intact paper surface. The adhesive will dissolve and come off easily and completely, together with the remaining pieces of paper. Now wash with dish washing soap as you would any regular dish. The candle oil comes off like...

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    What I use: paraffin candle oil. I always have some at home. How I do it: soak the label in water, and, once softened, scrape what comes off - the smooth, paint-covered surface of the label otherwise prevents the oil from reaching the glue. You don't have to do a very good job of removing the paper so far, you just have to end up with a porous paper surface, instead of the smooth, sealed one that the label initially had. Put a few drops of candle oil and rub it into the paper - that's why you wanted a porous surface, the oil would not easily reach the glue through the intact paper surface. The adhesive will dissolve and come off easily and completely, together with the remaining pieces of paper. Now wash with dish washing soap as you would any regular dish. The candle oil comes off like any other grease, leaving absolutely no residue behind.

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  • FlorinJ commented on mikeasaurus's instructable Easy Waterproof Clothing8 months ago
    Easy Waterproof Clothing

    I have to make a backpack. Guess how I'll get the waterproof textile material for it ...

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  • FlorinJ commented on ChristinaTapp's instructable Fun with Wine Bottles9 months ago
    Fun with Wine Bottles

    How many cycles of hot/cold water did you need, approximately, for regular wine bottles?

    For peeling off the labels, I use a slightly different method. Often, the glue used for the labels does not soften in water, only the paper gets wet, so when you clean the bottles you are still left with some goo that won't easily come off. Therefore, I simply rub the paper until the waxed/water repellant surface tears off, then pour a tiny bit of lamp oil, and rub it in. The lamp oil is stinky but dissolves the glue. Then I can wash the greasy lamp oil off with alcohol or regular dish washing soap.

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  • FlorinJ commented on WardWorks's instructable Build a Plastic Vacuum Former10 months ago
    Build a Plastic Vacuum Former

    How many watts do all heating elements taken together have? I couldn't figure this out by skimming through the text.More important: what's the temperature you need to have inside the oven? IMO a thermostat inside the oven would be very useful - without it, variations in environment temperature, wind or draft or variation of network voltage combined have an unpredictable effect on the temperature inside the oven. Your material can start to bubble or stay too stiff. (I managed to get lots of bubbles inside a 2mm (1/2") sheet of Plexiglas with a heat gun, and it was still too stiff - uniform heating at constant temperature is important.)An idea of how to compute what vacuum can or cannot break: the maximum load corresponds to atmospheric pressure, which is equivalent to about a column...

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    How many watts do all heating elements taken together have? I couldn't figure this out by skimming through the text.More important: what's the temperature you need to have inside the oven? IMO a thermostat inside the oven would be very useful - without it, variations in environment temperature, wind or draft or variation of network voltage combined have an unpredictable effect on the temperature inside the oven. Your material can start to bubble or stay too stiff. (I managed to get lots of bubbles inside a 2mm (1/2") sheet of Plexiglas with a heat gun, and it was still too stiff - uniform heating at constant temperature is important.)An idea of how to compute what vacuum can or cannot break: the maximum load corresponds to atmospheric pressure, which is equivalent to about a column of water 10 meters high. A good quality 1" thick softwood board could carry that load with a reasonable safety margin. Plus, what vacuum you are able to create with a piston pump is nowhere near close to ideal - 30% or so of the outside air pressure on the inside is already a good performance for such a pump (and more than enough to mold heated plastics).

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  • FlorinJ commented on joe57005's instructable How to set up multiple monitors in linux10 months ago
    How to set up multiple monitors in linux

    Depending on the video cards you're going to use and the software you're going to run, the IO of your system might become a bit stressed ...

    For reference. Just switched from a single dual-port card (VGA + DVI) with two monitors to a setup with two identical single port cheap and ancient geforce cards. All I had to do after plugging in the hardware was to reboot. It automatically updated the X configuration, and switched both monitors to the maximum available resolution.OS is Ubuntu 14.04 (it's a LTS release, so I won't drop it too soon).All I had to do manually after reboot was to readjust each monitor anew via the controls of the monitor, and reconfigure tilda - the different screen resolutions meant it no longer showed where and how I wanted it to.

    Sure. Provided you find a way to add additional video adapters to a rasp.pi.

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  • FlorinJ commented on Robin Lewis's instructable How to Make a Concrete Countertop10 months ago
    How to Make a Concrete Countertop

    Google acid staining of concrete. There are many commercial stains out there, but there are some people that developed DIY methods.Only, make sure you pour several smaller pieces to experiment with, before applying it to the large slab.

    I think you can also rub in hot beeswax. I've read other people had a good experience with tung oil.

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  • FlorinJ commented on bigchewypretzels's instructable hand making an engagement ring11 months ago
    hand making an engagement ring

    Thanks. Now that you say it it's obvious, but for some reason I didn't think of it.

    What cheaper metal can you use to train yourself, before you actually use something expensive?

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  • FlorinJ commented on jallwine's instructable Customizable Work Bench11 months ago
    Customizable Work Bench

    I've built myself something similar, already a few years ago. Only, the pegboard I have suspended on the wall, un-attached to the table. When I hammer on the table, I don't need all tools on the pegboard to start shaking. I also use a shelving rack built from scraps to keep tools, rather than keeping them on the table, for the same reason. (Constantly moving the portable table saw/miter saw/thickness planer/drill stand/table grinder on and off the table also helps staying fit.)

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  • Easy No Bake Bloody Chocolate Spider Web Tart

    Instead of heating chocolate directly on the fire, you may want to use steam. Simply put a larger bowl on top of a smaller pan filled half-way with water, and heat the water. This way it's less likely to overheat the chocolate/cream/ganache. IME, you don't need the mix to boil, just to get hot enough to melt everything, so it can be mixed well. Getting the chocolate to overheat will cause your ganache to be difficult to mix and not look nice (supposedly - never happened to me, since I heat neither the cream nor the chocolate on fire).

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  • How to Make the Best Ever Pigs in Blankets With Cheesy Mustard Dipping Sauce

    What I do to the rosemary: pick it, dry it to the extreme (by leaving it in a dry and dark place, not by placing it in the sun), then simply grind it in a coffee grinder. The flavor is preserved, but it's a lot easier to spread, and it keeps forever. It doesn't loose flavor if kept in an airtight closed jar.

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  • Outdoor Workbench with Internal Wood Storage

    They also have a model which sort of bends over backwards - click the second thumbnail at the top in the page I linked to above. I think these allow for some extension when the door's back edge hits an obstacle, such as the cabinet frame.Anyway, I didn't mean they're better - they're not (they're weaker and are not adjustable). If you don't mind the more complex mounting process, the hinges you used are definitely stronger.A few months ago, maybe a year or so, I had to disassemble a 25+ year old cabinet made of particle board. The hinges - similar to what you used - were as solid as new. The doors were still closing and opening perfectly The hinges hadn't seen even a drop of oil in all the years, and were still operating perfectly. All I remember ever doing to them is tightening one adj...

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    They also have a model which sort of bends over backwards - click the second thumbnail at the top in the page I linked to above. I think these allow for some extension when the door's back edge hits an obstacle, such as the cabinet frame.Anyway, I didn't mean they're better - they're not (they're weaker and are not adjustable). If you don't mind the more complex mounting process, the hinges you used are definitely stronger.A few months ago, maybe a year or so, I had to disassemble a 25+ year old cabinet made of particle board. The hinges - similar to what you used - were as solid as new. The doors were still closing and opening perfectly The hinges hadn't seen even a drop of oil in all the years, and were still operating perfectly. All I remember ever doing to them is tightening one adjustment screw.

    They also have a type which sort of bends over - just click on the second thumbnail at the top in the page I linked to above.

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  • Outdoor Workbench with Internal Wood Storage

    What I use: https://diy.hettich.com/en/products/hinges/special-hinges/screw-on-hinges.html. They're slightly weaker than blum hinges, but easier to mount.I usually clamp the doors in place, then screw on the hinges from the inside, and only then do I mount the back of the cabinet. I then take the hinges off and finish everything, then put things back together again.

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  • FlorinJ commented on kdac's instructable Concrete Coffee Table11 months ago
    Concrete Coffee Table

    Depends on the concrete mix. Do a slab with (weightwise) 3 parts cement, 20 parts sand and 2 parts water (just enough so there is no more dry powder after thorough mixing - excess water makes for soft concrete). The resulting mixture should seem not to hold together. If it easily holds together it's too wet. It will hold together very well, once cured, if compacted before starting to cure - see below. Use something to shake up/vibrate the mold while pouring (for instance an orbital sander attached with screws or tape to the mold), and beat the conrete in with a piece of firewood or a brick or something similar, to remove all bubbles - if you prepare it pretty dry it won't flow to fill all gaps by itself. Then yes, the resulting slab will have no large pores and open bubbles and will be ...

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    Depends on the concrete mix. Do a slab with (weightwise) 3 parts cement, 20 parts sand and 2 parts water (just enough so there is no more dry powder after thorough mixing - excess water makes for soft concrete). The resulting mixture should seem not to hold together. If it easily holds together it's too wet. It will hold together very well, once cured, if compacted before starting to cure - see below. Use something to shake up/vibrate the mold while pouring (for instance an orbital sander attached with screws or tape to the mold), and beat the conrete in with a piece of firewood or a brick or something similar, to remove all bubbles - if you prepare it pretty dry it won't flow to fill all gaps by itself. Then yes, the resulting slab will have no large pores and open bubbles and will be extremely strong.A slab poured with a mix too wet will be soft, and easy to chip. A decently reinforced slab, at the size of a table and with no significant load to bear will not break, but a chipped coffee table is probably not what you want in your living room.

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  • FlorinJ commented on nerdhero17603's instructable how to make quick lime and slaked lime11 months ago
  • FlorinJ commented on seamster's instructable Impossible Nail in Wooden Block11 months ago
    Impossible Nail in Wooden Block

    I didn't say it's the smartest or best way to do it, only that I believe it is possible. I like your idea with a sleeve more than my initial idea with a threaded hole. I only thought of a threaded hole because I had to do something similar, some time ago, when the screw holding a french press'es filter to the shaft got stripped.

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  • FlorinJ commented on falconsamad's instructable DIY PORTABLE WORK STATION11 months ago
    DIY PORTABLE WORK STATION

    The left leg of my computer table below. (The table I use for DIY stuff - the one on which this table was built - uses the same kind of legs, only thicker, and with a different attachment system - more fit for hammering on the table.) This leg is a strip of birch plywood - about 22mm thick and 70mm wide. The tabletop is made of the same material. Both are extremely heavy and extremely rigid. The tabletop is attached via a piano hinge to a slat 30 X 30 mm in section, which is attached to the wall - also birch. It's the birch slat that carries the weight - the hinge is just so the tabletop stays attached. If I dismantle the legs, the tabletop bends down, taking up very little space in the room.Now, if instead of attaching the support that's now attached to the wall to a leg that comes dow...

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    The left leg of my computer table below. (The table I use for DIY stuff - the one on which this table was built - uses the same kind of legs, only thicker, and with a different attachment system - more fit for hammering on the table.) This leg is a strip of birch plywood - about 22mm thick and 70mm wide. The tabletop is made of the same material. Both are extremely heavy and extremely rigid. The tabletop is attached via a piano hinge to a slat 30 X 30 mm in section, which is attached to the wall - also birch. It's the birch slat that carries the weight - the hinge is just so the tabletop stays attached. If I dismantle the legs, the tabletop bends down, taking up very little space in the room.Now, if instead of attaching the support that's now attached to the wall to a leg that comes down vertically from behind the upper shelf down to the ground, you'd still have the portability, and you could use the two legs for support, instead of having all load onto whatever you use to attach the workstation to the wall. You could make the legs detachable, in order not to make the whole thing too bulky.

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  • FlorinJ commented on seamster's instructable Impossible Nail in Wooden Block11 months ago
    Impossible Nail in Wooden Block

    I think you can do it.Cut the nail in half, with each half being just slightly longer than the diameter of the big holes, plus about 1 cm or 1/3" added to one part. Drill a hole lengthwise into the shorter part part, at the cut end, and thread it. Thin out the additional part of the other end, and thread it too. Now you have a nail that can be reassembled.The reassembled nail would be just slightly longer than two diameters of the holes. Make the hole into which the nail has to go slightly larger in diameter than the nail. This means you can squeeze each half of a nail in by initially inserting it slightly skewed, and getting it upright as it goes deeper - would become even easier if you round out the edges of the holes too.However, once both halves are inserted and screwed togethe...

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    I think you can do it.Cut the nail in half, with each half being just slightly longer than the diameter of the big holes, plus about 1 cm or 1/3" added to one part. Drill a hole lengthwise into the shorter part part, at the cut end, and thread it. Thin out the additional part of the other end, and thread it too. Now you have a nail that can be reassembled.The reassembled nail would be just slightly longer than two diameters of the holes. Make the hole into which the nail has to go slightly larger in diameter than the nail. This means you can squeeze each half of a nail in by initially inserting it slightly skewed, and getting it upright as it goes deeper - would become even easier if you round out the edges of the holes too.However, once both halves are inserted and screwed together, you would no longer be able to skew the nail enough to extract it. The two parts being longer than half the diameter of the holes, the joint would stay hidden when moving the nail.The wider the hole in which the nail slides, the smaller in diameter you can make the two larger holes, and the better hidden the nail's joint is.

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  • FlorinJ commented on falconsamad's instructable DIY PORTABLE WORK STATION12 months ago
    DIY PORTABLE WORK STATION

    The table top hanging by chains is probably not very stable. My hobby isn't electronics but carpentry. If you make the table top fold downwards, and build two wall-attached supports, you can use two diagonally placed pieces of wood to support the table from below. That's much more stable - that's how I built the table I'm working wood on - it's also attached to a wall, not sitting on legs, and extremely sturdy - enough to support hammering on it, or placing and operating a table saw or a portable thickness planer on it without even a squeak.Alternatively, you can build a metallic frame from square pipe, slightly narrower than the tbale top, attach it with hinges close to the front of the table top, and put a support on the wall on which the edge opposite to the one with hinges should rest.

    You could attach two staves at the back, so they're detachable, and mount the supports on them. You have some system for fastening the rack to the wall anyway. The staves being long enough to reach the ground would further decrease the load on the wall fastenings.

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  • FlorinJ commented on nerdhero17603's instructable how to make quick lime and slaked lime12 months ago
    how to make quick lime and slaked lime

    You need to bake your limestone at about one hour at 900-1000 degrees Celsius, I've read elsewhere. Boiling will not get your limestone significantly above 100 degrees Celsius, so what you'll get will not actually be quicklime.For comparison and scale, most kitchen ovens don't make it past 300 degrees Celsius, professional pizza ovens never reach 500 degrees Celsius, aluminum melts somewhere above 600 degrees Celsius and low fire ceramics kilns work at ~1100 degrees Celsius. Glass starts to bend at about 1200 degrees Celsius.It seems egg shells contain very little minerals besides calcium carbonate, making them a very good material for making quicklime. (They do contain a significant amount of organic matter, but that's burned to gases in the firing process.) You could use squashed egg ...

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    You need to bake your limestone at about one hour at 900-1000 degrees Celsius, I've read elsewhere. Boiling will not get your limestone significantly above 100 degrees Celsius, so what you'll get will not actually be quicklime.For comparison and scale, most kitchen ovens don't make it past 300 degrees Celsius, professional pizza ovens never reach 500 degrees Celsius, aluminum melts somewhere above 600 degrees Celsius and low fire ceramics kilns work at ~1100 degrees Celsius. Glass starts to bend at about 1200 degrees Celsius.It seems egg shells contain very little minerals besides calcium carbonate, making them a very good material for making quicklime. (They do contain a significant amount of organic matter, but that's burned to gases in the firing process.) You could use squashed egg shells (so they can be compacted decently) placed in an iron box and the method outlined in this instructable for clay to try to make quicklime: https://www.instructables.com/id/Firing-Natural-Cla...After firing and cooling, spread a pinch of the white powder that results in a pan filled with water. If it splatters and bubbles upon contact (well, as much as that tiny amount can splatter and bubble), you got yourself some quicklime.Never mix a large quantity of quicklime and water indoors and fast. The reaction is violent and dangerous. Traditionally, where I live, this is done by digging a pit as deep as two meters, pouring the quicklime powder into it, then adding water until it coves the lime, being careful not to breed the resulting fumes. The fumes are basically just water, but the violence of the reaction will cause fine particles of quicklime to rise into the air, and these will continue the reaction inside your lungs, if you inhale them, and produce slaked lime, which is slightly toxic and corrosive.

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  • FlorinJ commented on kludge77's instructable Making A Pen Out Of Paper12 months ago
    Making A Pen Out Of Paper

    You can use a lathe with less waste for handles, dowels, chess pieces, wooden hinges or such. You can also produce your blanks for bowls with a lot of gluing - see this ible: https://www.instructables.com/id/Make-a-Five-Cut-Bi... (A bit off topic: the glued up bowl has IMO a much nicer grain pattern and is probably a lot less fragile than one turned from a single large piece too.) Or you can repurpose the sawdust by pressing it into pellets. You don't have to create a lot of waste to make something nice.

    Or you could just soak a sheet of paper in resin, then roll it around the pen's body. Or even better, roll it on a thin bar, then extract the bar once the resin has cured, and create your own paper tube.(The final product looks quite nice, nothing to criticize in this regard. I just don't like things where you spend several times more material than what remains in the final product.)

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  • Ink Removal From Soda Cans

    Heat gun might char the paint, leaving ugly marks on the metal. (Not sure, didn't try it, just a possibility.)

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  • How to Survive a Backpacking Trip in Alaska

    A bear will catch you even if you run downhill.Go in a group of at least four-five people, and don't spread out too much. Speak loudly, whistle, and make sure wild animals notice you from a mile away. Wild animals don't like meeting people, and most are scared of what they don't know. They will give way as you advance in their direction if they notice you early enough. And of course, keep your eyes open - no bear will leave a carcass of a fresh kill because a noisy group of humans approaches.Don't shoot a brown bear! A bear is an incredibly rugged animal, and even if you wound it mortally, if it still gets to live a few minutes (which it gets, even with a shot to its heart - only a shot to its brain will kill it within seconds, but a bear also has an incredibly hard scull, so that most ...

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    A bear will catch you even if you run downhill.Go in a group of at least four-five people, and don't spread out too much. Speak loudly, whistle, and make sure wild animals notice you from a mile away. Wild animals don't like meeting people, and most are scared of what they don't know. They will give way as you advance in their direction if they notice you early enough. And of course, keep your eyes open - no bear will leave a carcass of a fresh kill because a noisy group of humans approaches.Don't shoot a brown bear! A bear is an incredibly rugged animal, and even if you wound it mortally, if it still gets to live a few minutes (which it gets, even with a shot to its heart - only a shot to its brain will kill it within seconds, but a bear also has an incredibly hard scull, so that most shots not hitting close to perpendicular on the scull will not make it into the brain) you'll be his last meal. Or at least his last kill. Loud noises, such as hitting metal pans with spoons, loud whistling and shouting, or even firing guns in the air, when you're still a few dozen yards away, while standing in a group and not running, might convince the bear to leave.If a bear still attacks you, curl down on the ground, covering your head with your arms and keeping your legs bent closely over your stomach. Oftentimes, it's not that the bear wants to eat you (you're stinky to the bear, not necessarily a tasty meal), it's about territory and dominance. If you are submissive, the bear might maim you, asserting its dominance, but not kill you. The tightly curled position protects your inner organs and your head.Bears are increasingly aggressive (and likely to eat you even if you stink) in early spring when there isn't enough food and they're skinny and grumpy after a long winter's sleep, and in late autumn when they are increasingly hard pressed to put on enough fat for the winter. They are happy with roots, berries, other fruit and mushrooms during the summer, provided there's plenty to go around, and won't spend time and energy on aggression if it can be avoided.When encountering a mother bear with cubs, make sure you don't get between her and her cubs, and don't get closer to the cubs than she is. Try to be in a position where she is between you and her cubs, and still far away.Don't bring dogs along if they are not trained for hunting and don't know how to handle a bear. A bear's agility is incredible, despite its size, and any dog not knowing how to keep a bear in check while staying at a safe distance is likely to get killed. And no, no dog can outrun a bear. (There are a few breeds that sprint faster than a bear, but they can't keep up the pace for long enough.)

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  • FlorinJ commented on michael.j.feierstein's instructable Table Saw Rust Removal1 year ago
    Table Saw Rust Removal

    I wouldn't do this to any surface I need to be plane. A few repeats and your table saw will be slightly wavy - not enough to see it, but enough to have you wonder why your cut pieces no longer come out perfectly straight.

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  • Measure The Moisture Content Of Your Firewood With A Multimeter

    The more expensive ones come with a translation table by wood species.

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  • FlorinJ commented on JunezRiyaz's instructable How to Make PCB Using Marker1 year ago
    How to Make PCB Using Marker

    You should test it first. Even some permanent markers get dissolved by the etching agent.

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  • FlorinJ commented on RaNDoMLeiGH's instructable Special FX: slashed skin1 year ago
    Special FX: slashed skin

    1. You don't get blood running if you don't hit a more significant blood vessel. If all you cut through are capillaries, what you get is a slow dripping followed by quick clotting on the surface, at least in a healthy person.2. Clean razor is explained below.3. Emo kids cut themselves all over the body. Hand cuts are not the most common, but they happen. Google self harm images. It will also show you how realistic the fake cut above looks.

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  • FlorinJ commented on anonymouse197's instructable Bloody Finger Stump!1 year ago
    Bloody Finger Stump!

    To get a realistic look, you need to use an axe. Or a cleaver.

    My rich imagination: imagine walking into a full office room with that finger stump, holding a piece of sausage with a nail painted on it and at one end and some fake blood smeared on its other end in your other hand, and holding a small piece of cloth dripped in red water and slightly squeezing it in the hand with the fake stump, so it drips, and asking calmly where you can get some ice.

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  • FlorinJ commented on Technovation's instructable A cardboard device: THE SHIRT FOLDER1 year ago
    A cardboard device: THE SHIRT FOLDER

    Look up videos published by Izzy Swan on youtube. It was most likely meant as a joke.

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  • FlorinJ commented on Wood Review's instructable How to Make a Wave Table1 year ago
    How to Make a Wave Table

    How many hours did you spend on the wavy legs?

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  • FlorinJ commented on jessyratfink's instructable unusual uses for rice1 year ago
    unusual uses for rice

    I'm a programmer. One of he greatest virtues of a programmer is laziness ... you draw the conclusion. (Why laziness: a lazy but smart person does things so he does not need to do them twice.)I'm completely ceding any intellectual property rights on these ideas to anybody willing to transform them into an ible.

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  • FlorinJ commented on rbates4's instructable Automated Plant Watering System1 year ago
    Automated Plant Watering System

    What if you have some three dozen pots with different watering needs? Lemme see ... one system for each pot ... that's 2880 dollars precisely.I'm thinking for a while now of a simple, analog system, with two or four metal rods as a simple humidity sensor, plus a single transistor driving a relay that opens a small valve - one such system per pot, adjusted periodically for the precise humidity that pot requires. No pump, just a canister of water placed some place high, and water flowing downwards when a valve is open. I just don't have a good enough idea for the valve. I want something cheap, at most 5 dollars per pot.I was also thinking of a system with a single micro-controller visiting each pot's sensor and valve periodically, but the problem stays the same: a small, cheap valve that...

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    What if you have some three dozen pots with different watering needs? Lemme see ... one system for each pot ... that's 2880 dollars precisely.I'm thinking for a while now of a simple, analog system, with two or four metal rods as a simple humidity sensor, plus a single transistor driving a relay that opens a small valve - one such system per pot, adjusted periodically for the precise humidity that pot requires. No pump, just a canister of water placed some place high, and water flowing downwards when a valve is open. I just don't have a good enough idea for the valve. I want something cheap, at most 5 dollars per pot.I was also thinking of a system with a single micro-controller visiting each pot's sensor and valve periodically, but the problem stays the same: a small, cheap valve that can be driven by a tiny electromagnet.As for the clips: heat some thin rods of plastic and bend them into an U-shape, then use them to clamp the hose into the soil inside the pot. I think they'd be equally effective, only cheaper to make.

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  • 9 Unusual Tool Storage Methods for Your Workshop

    You can build (or buy) and run a dust collector. It really works. Here's from a guy who seems to keep a very tidy shop:

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  • FlorinJ commented on Gunk on Floor's instructable Recycle your old Soap1 year ago
    Recycle your old Soap

    I can't be sure, but you possibly overheated it and changed the soap's chemical structure.

    Soap (supposedly) melts at a quite low temperature - well below the boiling point of water. Significantly overheating it may easily cause it to change its chemical structure. It's probably safer to melt it in a double boiler - with no water at all, whatever water you add you'll need to evaporate later on, or else your soap will be extremely soft. You don't even need to have the water boiling, it's enough to just keep it very hot, at about 55-60 degrees Celsius/120 - 125 Fahrenheit.You can use a plastic cup (one left over from yogurt, or the cut out bottom of a plastic bottle, for example) placed in a pan filled with water, and boil the water. This should be safer (for the soap) than microwaving. Plus, plastic bottles and yogurt cups are smooth, unlike styrofoam cups, leaving the re-melt...

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    Soap (supposedly) melts at a quite low temperature - well below the boiling point of water. Significantly overheating it may easily cause it to change its chemical structure. It's probably safer to melt it in a double boiler - with no water at all, whatever water you add you'll need to evaporate later on, or else your soap will be extremely soft. You don't even need to have the water boiling, it's enough to just keep it very hot, at about 55-60 degrees Celsius/120 - 125 Fahrenheit.You can use a plastic cup (one left over from yogurt, or the cut out bottom of a plastic bottle, for example) placed in a pan filled with water, and boil the water. This should be safer (for the soap) than microwaving. Plus, plastic bottles and yogurt cups are smooth, unlike styrofoam cups, leaving the re-melted soap bar with a smoother surface.Last time I did this, the plastic cup idea did not yet occur to me, so I just placed all soap pieces in a plastic bag and tied it up with as little air inside as possible, then boiled it in water for about 15 minutes, then left it to cool in a tiny bowl and peeled off the bag. The recycled soap bar came out nice and smooth, although a little oddly shaped. Only, a plastic bag is too easy to puncture and difficult to close up so that no water gets in while air still can get out.

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  • FlorinJ commented on macrossmaniac's instructable How to make a log cabin retreat1 year ago
    How to make a log cabin retreat

    You coud´ve probably used moss for chinking, then push some mud into it for better insulation. It's what's used traditionally in some parts of the world for similar purposes.

    More solid possibly - but more solid beyond solid enough is just waste, from an engineer´s point of view. More warm definitely not - air is quite a good thermal insulator, whereas concrete is not.He could have filled the voids with dry pine/fir tree needles, if there are pine/fir trees in the neighborhood. Those needles are filled with resin, critters don't eat them and they rot away extremely slowly.

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  • FlorinJ commented on blorgggg's instructable Transparent Wood1 year ago
    Transparent Wood

    I must have missed something. What's the vessel you use for vacuuming? Did you build or buy it?

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  • Leg for a wooden table (incredible strength)

    IMO you don't need to secure the pipe. The bolt that gets screwed into it sideways secures it anyway.

    Even a sharp bit, if of large enough diameter and operated at a speed too high or with an advance speed too low, can burn wood.

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