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  • yrralguthrie commented on jpmarth's instructable SUV Trunk Shelf4 months ago
  • Junkyard Entertainment System

    That's a really good idea! I think I'll make mine a bit simpler, however. Purchase a fireplace video for $5.00 and a DVD player for $35.00 and I will have a 44" fireplace where my TV is. And in the summer I can have a waterfall on the TV.

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  • yrralguthrie commented on Vulcaman's instructable LOW COST DIY 500€ CNC MILL6 months ago
    LOW COST DIY 500€ CNC MILL

    There is only 1 type of plywood that is made well enough to not have voids, and be stiff enough to be successfully used in a CNC machine. That being Baltic Birch and those parts are not Baltic Birch. The metric equivalent to 1/2" Baltic Birch has 9 plies all birch. The metric equivalent to 3/4" has 11 plies all birch. It is sold in 1500mm x 1500mm sheets (5' x 5") That machine is likely good enough for wood projects, but not metal.

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  • Messy But Efficient Way to Organize Your Bookcase

    You could also save space by just throwing your clothes, towels, wash clothes, etc in a pile on the floor.

    With that sort of neatness, I shudder to think what the rest of your living quarters look like.50 books, huh? I'm thinking you are quite young. That's good that you read.

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  • yrralguthrie commented on AdrienR's instructable Screw Sorting Machine6 months ago
    Screw Sorting Machine

    Great work. Just reading and looking at the pictures, I'd say that cost $200-$300 USD. Plus 40 hours of build time. In the US maybe $20.00 an hour. So $1000 to build it. I hope not on company time! Might be more cost effective to just build the boxes and not make the mess in the first place though.

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  • yrralguthrie commented on neslo63's instructable 3 Shop Organization Ideas 6 months ago
    3 Shop Organization Ideas

    Actually a good instructable, some folks would be able to downsize it by about half and make use of your techniques. In the US at least likely 80% or more of the workshops are in garages. No way for a clamp rack or lumber storage such as yours could be a priority. Clamps are usually kept on the wall, and that much wood storage would just be a dream. Lots of professionals write great Instructables, that are just not useful for most of the readers of this reflector. Someone with enough work area to use your tips(as good as they are) is usually skilled enough to do their own design. I'd like to challenge you and other professionals to write to your audience rather than writing to gain exposure or to say "look at my instructable." Most of the time when an author introduces...

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    Actually a good instructable, some folks would be able to downsize it by about half and make use of your techniques. In the US at least likely 80% or more of the workshops are in garages. No way for a clamp rack or lumber storage such as yours could be a priority. Clamps are usually kept on the wall, and that much wood storage would just be a dream. Lots of professionals write great Instructables, that are just not useful for most of the readers of this reflector. Someone with enough work area to use your tips(as good as they are) is usually skilled enough to do their own design. I'd like to challenge you and other professionals to write to your audience rather than writing to gain exposure or to say "look at my instructable." Most of the time when an author introduces themselves with "professional or with their considerable accomplishments", I simply pass them over, in the belief that their instructable is for their edification. Use professional techniques and experience, but on a level non-professionals and amateurs can benefit from without having to rethink and redo the instructable.

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  • yrralguthrie commented on Patsakorn's instructable Shelves Made of Old Drawers7 months ago
    Shelves Made of Old Drawers

    Good instructable and nice to see one that actually has some value other than demonstrating someone can make a video.Very useful project. Except as others say, use a french cleat to hang it.

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  • yrralguthrie commented on DiggingFox's instructable Resistor Organizer7 months ago
    Resistor Organizer

    Don't take offense, but since you have a laser printer why not just try to print on one test tube. Lots easier than wading through what could be garbage on the internet. Especially since the test tubes are likely from China and there's no way to tell what kind of glass they are made of.

    Why not just order the holder(s) when you order the test tubes. They look very similar to what you 3D printed. Pretty cheap also.

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  • Scratch Built Acoustic Absorbers for Bedroom Studio

    Without including your enthusiasm, for a project you have invested in, how effective are these? I ask because I didn't know memory foam was particularly effective in sound dampening and you don't cover a lot of wall. And I believe the foam would be more effective without a cover.

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  • Making Aluminum Bronze: Melting Copper and Aluminum

    I don't know this, but I expect some of the computer parts that people think are aluminum are actually zinc especially if casting lines can be seen.

    What is jewelery?When collecting aluminum, be aware that quite a bit of the metal that looks like aluminum isn't. It's is either magnesium or zinc. For one instance and to point to objects that might not be aluminum, many electrical hand tools are made from zinc or magnesium, mostly zinc. If something is made with a die casting it is likely a zinc alloy. Zinc is easier and cheaper to cast. Dies last longer. Old car carburetors look like a source for aluminum, but they are generally zinc alloys.

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  • yrralguthrie commented on theguymasamato's instructable Cardboard Tube Cabinet 7 months ago
    Cardboard Tube Cabinet

    No doubt a post by a man. No wife is going to allow that in her living or kitchen area. Maybe the kids bedroom. lolI save those things also...but I also save shipping boxes...and I use them in my shop, not in the house. grin

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  • yrralguthrie commented on Het Laser Lokaal's instructable Lasercut Cardboard Lampshade8 months ago
    Lasercut Cardboard Lampshade

    For skeptics, if cardboard is treated and then finished correctly it will last a long time. Perhaps not an heirloom but years. Some paper mache items do last generations and are quite good looking.

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  • yrralguthrie commented on DIY KING 00's instructable DIY Brushless Dremel Tool8 months ago
    DIY Brushless Dremel Tool

    The battery voltage must never go below 3.0 volts. Better is 3.5 vdc. This is critical. If 18650 lithium ion batteries are discharged to 0 volts they won't last and may die after 1 cycle. These batteries are generally charged to 4.1 vdc and discharged very rapidly to 3.9 and stay above 3.7 for a long time and then discharge very rapidly. For optimal performance, they MUST be not be discharged below 3.6 vdc. If they are discharged to the point where manufacturers say is the absolute minimum (3.0) the life is about 30-60 cycles. If charged at 3.6 volts the life is perhaps 600 cycles. There is little point is discharging past 3.6 anyway as there is very little power left by then. Trying to be nice, but truthful. Great idea, bad implementation, that motor is not nearly powerful e...

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    The battery voltage must never go below 3.0 volts. Better is 3.5 vdc. This is critical. If 18650 lithium ion batteries are discharged to 0 volts they won't last and may die after 1 cycle. These batteries are generally charged to 4.1 vdc and discharged very rapidly to 3.9 and stay above 3.7 for a long time and then discharge very rapidly. For optimal performance, they MUST be not be discharged below 3.6 vdc. If they are discharged to the point where manufacturers say is the absolute minimum (3.0) the life is about 30-60 cycles. If charged at 3.6 volts the life is perhaps 600 cycles. There is little point is discharging past 3.6 anyway as there is very little power left by then. Trying to be nice, but truthful. Great idea, bad implementation, that motor is not nearly powerful enough. Even if it were, the rpm's are way to slow for an effective dremel type grinder. You can say it'll cut through metal, but it'll take a long time to do it. Even a Dremel tool turned down to a few hundred rpm's will not grind or drill effectively. It'll polish delicate objects and that's all this build is good for. A motor that draws around 2 amps at 12 volts is only 24 watts. Most of those fan motors are going to be closer to 10 watts. I read the instructable because it IS a great idea. But it would be a waste of my time to use a muffin fan motor to build one. I believe this author is misleading readers. Again, great idea, but not with a small muffin fan motor. There are lots of small high rpm motors available for less than $5.00.

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  • yrralguthrie commented on sbkirby's instructable Drill Press Laser Guide8 months ago
    Drill Press Laser Guide

    Not sure I see any purpose in this. Why not just lower the bit to the mark on the part to be drilled? No worry about alignment. The dot is going to be larger than a small drill to spot drill anyway. Remember if you want a precise hole you need to mark the spot, then use a punch to physically mark, then predrill and then drill. No purpose for the laser. The hole should already be marked with a punch before doing any drilling. Looks like a solution to a problem that wasn't a problem.

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  • yrralguthrie commented on CinderellasMice's instructable Oven-Baked "Fried" Donuts8 months ago
    Oven-Baked "Fried" Donuts

    Afraid I don't see much point to baking donuts. Yeast dough, a glaze of some kind. Not frying is not going to remove enough fat and grease to make much difference in calories. They are still heart attack helpers. LOL

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  • yrralguthrie commented on Mastering Me's instructable Easy Life-Saving Water Filter8 months ago
    Easy Life-Saving Water Filter

    I see the posts about this not purifying water, and want to add an additional few words.I mean to yell.THIS WILL NOT MAKE UNSAFE WATER SAFE TO DRINK. All it does is remove some of the visible contaminates. Just makes the water look better. The unsafe bacteria and chemicals in water will still be there. DO NOT use this expecting to have safe water to drink.This person does not know what they are talking about. They have posted a very unsafe instructable.

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  • yrralguthrie commented on juniortan's instructable Travel Door Lock9 months ago
    Travel Door Lock

    :) Any hotel or motel that has doors that fit loose enough for this to work, I don't intend to stay in. It won't work in most doors. If one stays someplace where this will work, better expect to get robbed anyway. One swift kick will defeat it. Mostly an urban legend that it is useful.

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  • yrralguthrie commented on jones424's instructable How to Build a Motorized Pedal Car9 months ago
    How to Build a Motorized Pedal Car

    Well, I change the oil in my vehicles, wash my own vehicles, and I've done all those other things mentioned. But I have reasons. Don't trust others to change the oil, can't afford to pay someone, etc. I've built my own shop equipment. A great 2" x 48" belt sander/grinder for one. I built it because I didn't have the money to buy one. And I already had all the parts. Probably saved $800. I expect I've built more of my own stuff than the author or the people who replied have together. But I don't reinvent the wheel so to speak. There is no way in my lifetime I can build all that I want to build, so I budget my time. It's a waste of time to build something that can be bought for the same price. wjf123, by making assumptions about people you are showing something abo...

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    Well, I change the oil in my vehicles, wash my own vehicles, and I've done all those other things mentioned. But I have reasons. Don't trust others to change the oil, can't afford to pay someone, etc. I've built my own shop equipment. A great 2" x 48" belt sander/grinder for one. I built it because I didn't have the money to buy one. And I already had all the parts. Probably saved $800. I expect I've built more of my own stuff than the author or the people who replied have together. But I don't reinvent the wheel so to speak. There is no way in my lifetime I can build all that I want to build, so I budget my time. It's a waste of time to build something that can be bought for the same price. wjf123, by making assumptions about people you are showing something about yourself. jones424 you said in the instructable your little boy was too young to use the car by himself, yet you denigrate my suggestion of a remote control. jones424 by the time you get to be as old as I am, you'll be budgeting your time better! You're obviously quite capable.

    ccferfun, I too like to build, but if I want the joy and self-sufficiency of creating, I'll actually create sometime.

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  • yrralguthrie commented on jones424's instructable How to Build a Motorized Pedal Car9 months ago
    How to Build a Motorized Pedal Car

    I know this is a build it forum, and some folks just enjoy building stuff, but on this build I ask myself, Why?I just looked on Amazon and a battery operated kids car can be had for $139.00 with shipping. This one also had a remote control feature so a very small child could be put in it and the parent could control the car. And no sharp metal corners to hurt the kid.

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  • yrralguthrie commented on Bverysharp's instructable Automatic Screw Sorter10 months ago
    Automatic Screw Sorter

    Why did I assume he was sorting used screws...I looked at the pictures.

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  • yrralguthrie commented on Bverysharp's instructable Automatic Screw Sorter10 months ago
    Automatic Screw Sorter

    An excellent write up. Very thorough. A lot of time spent on the written word. (A declining skill) Based on the results shown in the pictures I agree it's a slightly usable toy. And very few used screws are actually usable anyway. If they are marked I'll just pay the few cents it takes to buy a new screw. I value my time building too much to intentionally use ugly parts. I make enough mistakes as it is, without intentionally adding flaws. Screws are cheap. Many times I can buy them for $3-4 per pound. The biggest drawback to the project in my life would be the time spent building the machine vs. sorting by hand.

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  • yrralguthrie commented on kenny kaf's instructable Table Saw Sled / Cross Cut Sled11 months ago
    Table Saw Sled / Cross Cut Sled

    Nothing against this man's build. The instructable is well designed.Traditionally a sled of this sort is called a panel sled and used to cut large panels. Cuts that would be unhandy using the fence. It's not a miter fence. Table saws have a miter gauge, which is adjustable for angles. It's for making angles, hence miter.I think most will find the sled unhandy for cutoffs. Mostly since the fence can't be used with the sled on the saw. The sled also has no advantage over a zero clearance insert for clean cuts, and the insert is easier to make. It's also going to reduce the maximum depth of cut by the amount of the thickness of the sled. If the sled is more accurate than the fence or miter gauge then something is wrong with the fence or miter gauge. Fix them or buy better rathe...

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    Nothing against this man's build. The instructable is well designed.Traditionally a sled of this sort is called a panel sled and used to cut large panels. Cuts that would be unhandy using the fence. It's not a miter fence. Table saws have a miter gauge, which is adjustable for angles. It's for making angles, hence miter.I think most will find the sled unhandy for cutoffs. Mostly since the fence can't be used with the sled on the saw. The sled also has no advantage over a zero clearance insert for clean cuts, and the insert is easier to make. It's also going to reduce the maximum depth of cut by the amount of the thickness of the sled. If the sled is more accurate than the fence or miter gauge then something is wrong with the fence or miter gauge. Fix them or buy better rather than adapting something not actually meant for cutoffs. For a small table saw there is really no need for a sled as there is a limit to the size of panels that can be cut. That said the sled he made will make good 90-degree cutoffs, but no better than the basic saw with a zero clearance insert. I believe this person made the video before he became completely familiar with using a table saw.

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  • yrralguthrie commented on rhanks's instructable Tiny House ~ the Bacon Bungalow!11 months ago
    Tiny House ~ the Bacon Bungalow!

    Good instructable, but a warning.In the US, few RV or mobile home parks are going to let a homemade RV park in their park. Most use the excuse that it may not be built according to standards. Yours is going to have additional problems. It's not going to fit in with the rest of the RV's. Odd shape along with pork and corrugated siding will get you excluded from a resort park for sure. Some parks in out of the way areas or very rural red neck areas will, however, take your money and let you in.

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  • Fab-House (a Modular Open Source House Made From Cnc-cut-parts)

    ..."The smallest combination of modules would be with 3 modules (one middle, two corners, and one key element)..."That's four modules.

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  • yrralguthrie commented on a mateen's instructable Razor Saw12 months ago
    Razor Saw

    Good instructable and good construction for traditional US saw. But for small saws such as this the Japanese know best. A pull saw, a saw that cuts on the pull doesn't require the back blade. If you had reversed the blade when making the cut for the new blade it would cut on the pull. And it would then cut very thick material. And also cut flush. If you haven't used a pull saw you should try it. They just work better. How did you sharpen the saw. It had to be less than sharpe.

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  • Bicycle Saddle Transformed and Made of Old Leather Shoes

    Very good post on using leather. Not so good for making a bicycle seat. For riding any distance those seams, rivets and washers would be guaranteed to cause blisters on my rear end. :)

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  • yrralguthrie commented on Mastering Me's instructable Easy Life-Saving Water Filter1 year ago
    Easy Life-Saving Water Filter

    If I get dinged for being unkind, so be it. This instructable is dangerous. I mean to be constructive. Kind of hard to be positive in this case. Water purification is very important as you say, but this article is about cleaning the water of visible particles. Visible particles are not much of a problem. It's the pathogens in the water that are the problem. Except for using bleach to "purify" what you call the last 5% nothing in the article is going to have much if any effect on life or mitigating sickness. And bleach doesn't remove heavy metals. You made the statement that your setup purified the water just fine without carbon. How do you know? Clear water doesn't mean pure water. Activated carbon has a very important role in actually purifying water. Your setup even using t...

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    If I get dinged for being unkind, so be it. This instructable is dangerous. I mean to be constructive. Kind of hard to be positive in this case. Water purification is very important as you say, but this article is about cleaning the water of visible particles. Visible particles are not much of a problem. It's the pathogens in the water that are the problem. Except for using bleach to "purify" what you call the last 5% nothing in the article is going to have much if any effect on life or mitigating sickness. And bleach doesn't remove heavy metals. You made the statement that your setup purified the water just fine without carbon. How do you know? Clear water doesn't mean pure water. Activated carbon has a very important role in actually purifying water. Your setup even using the bleach does nothing to remove heavy metals, which is a major step in getting water ready to drink.You state emphatically that this method is the way drinking water is purified. That's false information, it is only part of the method. I'm sorry, but this article could be dangerous to anyone depending on using the techniques to actually purify water. Dirty water is not necessarily harmful.Sand filtration does nothing except remove large particles, to purify water some method must be used to eliminate biological pathogens and heavy metals. Regardless of the energy used dirty water that has been boiled is much safer to drink than water that has been cleaned by filtering.When using bleach the concentration of sodium hypochlorite is important. Do not use scented or color safe bleach. And a lot of bleach has additional cleaning agents added to it. Don't use that sort of bleach either.This statement is just made up nonsence.* Tip* If you can still smell bleach after forty minutes, wait a little bit longer, it is probably still killing bacteria. Once you can no longer smell the bleach, the water should be totally safe to drink.It would be quite easy to not smell the bleach and the reason being just not enough bleach was used.The whole article is full of made up thoughts and assumptions.In a water emergency all public agencies recommend boiling the water. Better to use some energy than get sick or dead.

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  • yrralguthrie commented on AMbros Custom's instructable Super Strong Bar Clamp1 year ago
    Super Strong Bar Clamp

    When I see builds like these I wonder how things get priced in various parts of the world. This type of clamps is quite cheap in the US. Bought from Harbor Freight they are $2 to $5 each, which is less than what it would cost for the metal and welding supplies in the US. Then I think, wait, they are made in China! Why do they cost less here than in other countries in that same part of the world! Or do the metal and welding supplies cost much less in other countries. Never the less a good instructable.

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  • yrralguthrie commented on kenyer's instructable Make Your Own Ikea SKADIS Hooks1 year ago
    Make Your Own Ikea SKADIS Hooks

    Uh...those hooks are 100 for $12.00 on Amazon. https://www.amazon.com/dp/B01LZLZJUX/ref=sspa_dk_h...However the boards are quite expensive. 14 1/4" x 22" for $48.0036 cm by 56 cmI'm a little puzzled since the author stated the boards were cheap and the hooks expensive!

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  • yrralguthrie commented on Kink Jarfold's instructable THE DRILL PRESS SPINDLE SANDER1 year ago
    THE DRILL PRESS SPINDLE SANDER

    Well that is the wisdom that is repeated often. I think it's urban myth. Ball bearings won't last as long as sleeve bearings, but ordinary sleeve bearings have significant drag. (excepting the sleeve bearings in engines) Ball bearings are used daily where side loads are the prevalent loads. Those ball bearings in the drill presses are not going to fail because they are ball bearings. They might fail due to being very cheaply made. Let's see, wheel bearings, including cars, table saws, circular saws, Dremel tools, lawnmowers, trailers, routers, all have ball bearings and significant side loads. And that includes some quite cheaply made tools.

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  • Leather Embossing With a 3D Printer!

    What do you use for the printable media? Plastic is hard and durable enough????? I know everyone is enamored with 3-D printing, but this looks like a job a CNC router would perform better. One could use hard wood or metal for the blank.

    PLA might be able to withstand 11,000 psi, but it would have to be solid to do so. The ridges on the embossing blocks you are making won't withstand anything like that. If I step on a lego in the dark it's likely I don't have shoes on and the reason the lego doesn't break is my foot gives first! Even with shoes I can't put but maybe 100 psi on it. Not unless I pick my foot up and stomp on it with rengence! Not nearly the same thing. I can certainly step on plastic project boxes that have been 3d printed and break them. Professional leather workers use a small metal tool or a single letter at a time. I don't think your embossing with the plastic plates and vice are going to last. And I don't think you have the experience with the technique to say it'll last a long long time. L...

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    PLA might be able to withstand 11,000 psi, but it would have to be solid to do so. The ridges on the embossing blocks you are making won't withstand anything like that. If I step on a lego in the dark it's likely I don't have shoes on and the reason the lego doesn't break is my foot gives first! Even with shoes I can't put but maybe 100 psi on it. Not unless I pick my foot up and stomp on it with rengence! Not nearly the same thing. I can certainly step on plastic project boxes that have been 3d printed and break them. Professional leather workers use a small metal tool or a single letter at a time. I don't think your embossing with the plastic plates and vice are going to last. And I don't think you have the experience with the technique to say it'll last a long long time. Less than a few months? While it might not require much pressure to emboss wet leather it will take a lot of pressure to make it last. I have items that didn't last a long long time and I used a hammer and individual metal letters.VERY good idea, I actually like it, except for use of plastic. After you have had one of your projects actually last a long, long time you can call me wrong.

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  • How to CORRECTLY Braze (SILVER SOLDER) a Copper Pipe

    Soldering and brazing are not the same thing. So you started off incorrectly. Too bad you capitalized correctly, because you got it wrong.Soldering requires less heat in that the solder is melted and flows into the joint. Brazing requires much more heat in that the material being joined is heated to its melting point and allowed to coalesce to help form the joint. And a rod is also melted to add to the joint.

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  • yrralguthrie commented on Fadibja's instructable DIY Outdoor EMT Wind Chimes1 year ago
    DIY Outdoor EMT Wind Chimes

    Excellent instructions. For builders of wind chimes. At times I've lived for several months in an RV especially in the wintertime in the south. Wind Chimes used to be popular to hang on the RV awning. The problems was they almost universally annoy the neighbors, and not just a little bit. Apparently the particular frequencies are hard to shut out. So unless you live where others can't hear the chimes, you might not want to hang one up. I'm talking about knocking on doors, confronting the offenders and complaining to the park managers kind of annoyed. I agree with the neighbors, it's just additional noise they didn't ask for. Sort of like trespassing.

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  • Air Conditoned Tent for Those Hot Months

    Cheap AC units will run full time all summer long for many years.

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  • yrralguthrie commented on HollyMann's instructable Paleo Cinnamon Rolls Recipe1 year ago
    Paleo Cinnamon Rolls Recipe

    Good instructable.But I've always wondered what is the reason for eating gluten free. Gluten causes no health problems, unless a person is one of the very very few that are gluten intolerant. Ditto dairy products. Neither by themselves cause weight gain. Sometimes people on a gluten or dairy free diet do lose weight simply because they become more aware of what they are eating. Sounds to me like an excuse for people to shift the blame for being overweight to something they have no control over, rather than the fact they eat too much. Like saying "I'm fat, but it's not my fault". People have been eating bread for hundreds or thousands of years, but being fat is a 20th and 21st century problem.

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  • yrralguthrie commented on juniortan's instructable Travel Door Lock1 year ago
    Travel Door Lock

    If I traveled and stayed somewhere I expected someone to break into my room while I was in the room I believe I would have a far better method to keep them out. Anyone over 120 pounds could break that in about 5 seconds, then be in the room with me. That's when I would get worried.

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  • yrralguthrie commented on badarsworkshop's instructable Fume Extractor1 year ago
    Fume Extractor

    I don't understand why this is better than the fan you used. Since you said the fan worked but blew cold air in your face, why not just turn it around, like you did with this fan? I can get a desk fan for $10 and it won't make enough noise to spoil my music.

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  • Glass Roof Pergola for Less Than £300!

    He didn't use glass. He used acrylic sheets. (plastic)

    Just being ornery I guess, but that isn't a pergola. A pergola is an canopy with trelliswork with the express purpose of growing trailing vines or flowers.

    I may have missed your source for the acrylic sheet. Even though you are in Scotland I'm curious since here in the US, 4 mm (.22 in.) acrylic sheet is going to cost about $6-$8 a square foot. Or $70-$80 a square meter. Which would make the cost of the acrylic about $500. And unless one is lucky it would have to be shipped which would likely add $100 to the cost. I checked and many home supply big box stores don't sell panels that size.

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  • yrralguthrie commented on fixthisbuildthat's instructable DIY 6 Drawer Dresser1 year ago
    DIY 6 Drawer Dresser

    Good project, useful. Keep in mind if you build one, that dresser's of this size should be fastened to the wall to keep them from being pulled over onto a child hanging or pulling on the drawers.

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  • Star Wars Monopoly (GlowForge)

    While making this as a one off for his own use is ok, the author has violated copyright laws by publishing the design here. A little surprised it was published by the forum owners.

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  • yrralguthrie commented on Barely Painted's instructable Power Bank Inside a USB Cable1 year ago
    Power Bank Inside a USB Cable

    Power hungry smart phones?? You must be under 20.lol

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  • yrralguthrie commented on waylightcreate's instructable Wood Cheese Slicer1 year ago
    Wood Cheese Slicer

    Might want to be careful, some species of wood are toxic.

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  • Listrik L585 AC DC Portable Power Supply / 158,000mAh Power Bank / 585Wh Solar Generator

    I know the right way to use periods and commas. And I don't confuse them, using one when I should have been using another. "... the word equivalent exist(s) for a reason...", but the problem is you just made up a reason. Means nothing to anyone but you. Like I said and many others have also said, use standard terms, don't make stuff up, be consistent and use ISO standards. You keep using junk you'll continue to get criticism and obviously you don't much like that. Technical articles are not prose, correctness is absolutely critical. By the way your construction techniques and expertise are really very good. Better than 99 out of a 100 hobbyist.

    LOL. I taught high school here in the U.S. Interesting that high school students in other parts of the world have the same attitude.

    Hmmm...every tablet, smartphone, hobby electric drones use soft shell lithium batteries. They seem pretty reliable to me.

    While you have done a good job illustrating your project when writing a scholarly article you should stick to industry standards not consumer made up flash. Also 585Wh/22.2 volts is 26.364 amps, mAh. Perhaps you meant to use a comma instead of a period. I know some countries use a period to mark the thousands, but you used commas elsewhere. Converting the capacity to 3.7V mAh equivalent is not industry standard, just a way to hype capacity. It's a 585 Wh battery and will provide different amounts of current for different voltages. But the same amount of power. While you are just copying the conversion it was conceived as a method to inflate and hide the true capacity of lithium batteries. Only used to hide the true capacity.

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  • Power Your Soldering Iron With a Drill Battery!

    I don't think it is clear that this is not a power supply build. It is a battery protection circuit. Lithium batteries do not like to be discharged below a certain voltage, this circuit is to turn off the voltage to the soldering iron when the battery voltage reaches approx. 15 volts. Should be able to use it with any 20-volt lithium battery with just a modification to the contacts to the battery.

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  • How to Convert Water Into Fuel by Building a DIY Oxyhydrogen Generator

    I'm not sure what was the purpose of that outburst. Critical mass simply means there is enough hydrogen to burn (oxidize) and enough oxygen to support the process. Put a lot of hydrogen in the presence of a lot of oxygen and it will produce a lot of energy and water as a by-product. As in a hydrogen burning automobile engine...or the Hindenburg. Except in the case of the Hindenburg I suspect most of the water was vaporized.

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  • How to Make a DIY Awesome Heated Vest!

    No, a trickle charger is controlled by much simpler electronics. PWM is pulse width modulation. A device that puts out a constant voltage that pulses. Trickle charge won't work for the vest.

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  • How to Make a DIY Awesome Heated Vest!

    You can't actually change the amount of current the heating pads draw, but to lower the current you might think about using a PWM voltage controller. It'll use less power and thus lower current since it pulses the voltage on and off. And of course, this will allow control of how warm the pads get. I suspect that's how the commercial jackets work.

    Very good instructable. I have some pads very close to the size of those used and when the voltage is 5 volts, they draw about 1400 ma. I checked. If used with 3.7 volt lion or lipo batteries the current will be at least twice that. This is likely why there are not many of these available commercially since one pad will run down one battery is less than an hour.

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  • yrralguthrie commented on fghuertas's instructable ANVIL STAND, HOW TO MAKE1 year ago
    ANVIL STAND, HOW TO MAKE

    Just a suggestion for future builds. Lay a ring of the four by fours on the floor. The lay a complete layer across that. Crisscross them to the correct height. Use long lag bolts to hold everything together. No need for the steel bands that way. Even with the bands that end grain on your build will eventually split.

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  • DIY 2 Ton Press Machine - How to Make a Crushing Press Machine at Home

    As the first reply said the capacity of this press is far less than 2 tons, and very likely a few hundred pounds. The capacity of the jack is not the limiting factor, the construction is. Did you not read the reply?

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  • yrralguthrie commented on Donny Terek's instructable Portable Bluetooth Speaker1 year ago
    Portable Bluetooth Speaker

    I've been soldering wires together for 40 years. Vibrations are not going to break a well-soldered joint, but do use the heat shrink for insulation. If the joints need to be strengthed twist the wires around each other or bend hooks in each end then close with pliers. Messier joint, but strong.

    Although there is little doubt that a bluetooth speaker of equal or better techniques could be bought much cheaper than this design, this is a good essay. The physical build techniques are well thought out and presented. The bluetooth connection can be used for other more esoteric projects. Kudo's for giving sources and links. Thumbs up!

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  • How to Convert Water Into Fuel by Building a DIY Oxyhydrogen Generator

    Actually, you've added something. A hyphen. Closer but no cigar. If you wish to call the mixture anything it should be oxygen hydrogen mixture or something akin to that with two separate words. And in this case, because of all the false suppositions surrounding the mixture it should be specified as a mixture. People involved in this want to believe they are some sort of new age chemist or have discovered a compound that doesn't follow the conventional rules. Oxyhydrogen infers a compound unless specified as oxy hydrogen mix. When hydrogen is burned in the presence of oxygen, water is formed, not some made up compound call oxyhydrogen. And if you want to use as an example of oxyacetylene torch, not that oxyacetylene connotes nothing, both words have to be use, AKA oxyhydrogen m...

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    Actually, you've added something. A hyphen. Closer but no cigar. If you wish to call the mixture anything it should be oxygen hydrogen mixture or something akin to that with two separate words. And in this case, because of all the false suppositions surrounding the mixture it should be specified as a mixture. People involved in this want to believe they are some sort of new age chemist or have discovered a compound that doesn't follow the conventional rules. Oxyhydrogen infers a compound unless specified as oxy hydrogen mix. When hydrogen is burned in the presence of oxygen, water is formed, not some made up compound call oxyhydrogen. And if you want to use as an example of oxyacetylene torch, not that oxyacetylene connotes nothing, both words have to be use, AKA oxyhydrogen mixture. While this may seem like a small point one cannot use sloppy words to define a concept. If someone wants to use hydrogen as a fuel, so be it. It'll be more expensive than gasoline, and likely not nearly as efficient. Whatever argument you want to use to counter my argument, whatever "new" chemistry you purport to use the whole business of making and using oxyhydrogen is fraudulent at it's core. It's like trying to name the ghosts that they look for on TV. Silly and Fraudulent. Everything about the topic is fraudulent so proponents use sloppy words and technique to try to disguise the truth.

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  • How to Convert Water Into Fuel by Building a DIY Oxyhydrogen Generator

    HHO designates a compound of two parts hydrogen and one part oxygen. It is meaningless to designate a mixture as a simple formula. We are talking chemistry here and one has to abide by convention or there is no meaning. It is also used as a formula for Brown's gas or sometimes oxyhydrogen and it is said these are fuels. HHO is the same as H20 or HOH and that is water. No other compound exists with the formula HHO with two parts hydrogen and one parts oxygen. When chemically combined hydrogen and oxygen form covalent bonds are created and water is formed. A mixture of H2 and O2 can exist. It would be designated H2 +O2. But it's just a mixture and has no properties other than those of hydrogen and oxygen. And it cannot be created with an oxyhydrogen generator. The only thing ...

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    HHO designates a compound of two parts hydrogen and one part oxygen. It is meaningless to designate a mixture as a simple formula. We are talking chemistry here and one has to abide by convention or there is no meaning. It is also used as a formula for Brown's gas or sometimes oxyhydrogen and it is said these are fuels. HHO is the same as H20 or HOH and that is water. No other compound exists with the formula HHO with two parts hydrogen and one parts oxygen. When chemically combined hydrogen and oxygen form covalent bonds are created and water is formed. A mixture of H2 and O2 can exist. It would be designated H2 +O2. But it's just a mixture and has no properties other than those of hydrogen and oxygen. And it cannot be created with an oxyhydrogen generator. The only thing that the oxyhydrogen generator does is to separate water into elemental hydrogen and elemental oxygen. I call it a hoax because it is, simple as that. I'm not the fool here. The man who said he created and tried to market HHO was tried in a court of law and convicted of fraud. God is spelled with a capital letter. You cannot invoke the name of God and mean anything other than one supreme being. Nor can you change the way compounds are created. Hydrogen will run a vehicle if the vehicle is tuned correctly. If the hydrogen is obtained independently of the vehicle. You cannot create hydrogen with a vehicle and use that hydrogen to propel the vehicle and get better fuel mileage. The vehicle necessarily must get worse fuel mileage. The vehicle will burn the hydrogen in the presence of oxygen and form what? WATER Heating the hydrogen and oxygen doesn't form water. The chemical process of burning hydrogen in the presence of oxygen does. There is no mixture of H2 and O2 in the process. Pure hydrogen burned or oxidized forms water. It's not hard, it is taught in about 8th or 9th grade Physical Science.

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