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  • Macro Lens With Pringles Can

    How did you determine which way was backward for the lens?

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  • yrralguthrie commented on wilgubeast's instructable 9 Unusual Uses for Aspirin1 month ago
    9 Unusual Uses for Aspirin

    For those who try out some of the uses for aspirin, note that it can be dangerous. If aspirin was newly discovered today, it would likely be a regulated prescription drug. Several of the "uses" outlined contain statements that are not agreed upon by scientists.

    *I know that there are more. But there are still too many girls being discouraged from careers in science and math. The real number is probably in the low to mid 50s.Horse Manure: There are thousands of female engineers in the world. And while girls may have been discouraged from careers in science and math at some point in the past they are not now. You statement is patently false and probably stems from your wish to be a feminist.

    Well I guess I wasn't nice enough, since my post was deleted. According to most studies I read about 15 percent of engineers are women. That's a lot more than 50 or 60.

    Aspirin, also known as acetylsalicylic acid.

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  • yrralguthrie commented on Paige Russell's instructable Homemade Energy Drink1 month ago
    Homemade Energy Drink

    Dr. OZ is a TV personality, not a health expert. I stopped reading after I read that sentence.

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  • yrralguthrie commented on allgeierbe's instructable Custom Computer Box1 month ago
    Custom Computer Box

    Very good, but remember that the wood and glass will hold a LOT more heat, so you do need more cooling.

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  • yrralguthrie commented on Steve Willson Kujur's instructable Build a Power Bank in $21 month ago
    Build a Power Bank in $2

    In your zeal to make fun of someone, you've failed to understand why battery pack manufacturers don't solder the batteries together. The special crimp they do use is a mechanical hold, which to begin with is better than just solder. Crimping is cheaper. Crimping is much faster. Maybe a factor of 10. I can solder wires to 18650's and then pick the battery up to blow on the joint. Can't get hot enough to harm the battery. We are not talking about the manufacturing process. We are talking about a way to recycle batteries safely into a useful product. And if you want to know, from the number and success I've had with making 18650 battery packs I'm pretty much an expert. Certainly much more knowledgeable than the 18650 police. All you experts on soldering technique are latter day ...

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    In your zeal to make fun of someone, you've failed to understand why battery pack manufacturers don't solder the batteries together. The special crimp they do use is a mechanical hold, which to begin with is better than just solder. Crimping is cheaper. Crimping is much faster. Maybe a factor of 10. I can solder wires to 18650's and then pick the battery up to blow on the joint. Can't get hot enough to harm the battery. We are not talking about the manufacturing process. We are talking about a way to recycle batteries safely into a useful product. And if you want to know, from the number and success I've had with making 18650 battery packs I'm pretty much an expert. Certainly much more knowledgeable than the 18650 police. All you experts on soldering technique are latter day prophets. My guru back in the tube days would have had a stroke because no one these days uses a mechanical, twisting the wires, joint before soldering. Nothing wrong with this project or technique other than it's been done and reported dozens of times already.

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  • yrralguthrie commented on Steve Willson Kujur's instructable Build a Power Bank in $21 month ago
    Build a Power Bank in $2

    Oh...I've used the procedure many times and know others who have also. No flaming batteries!

    I've made numerous battery packs from old laptop batteries. Some I've solder to several times. I use a little extra flux as well as scruff the end of the battery. Never had one fail. Heat can damage any battery, even lead acid, but it would take an obvious effort to get an 18650 hot enough to fail by soldering to it. I can pick the battery up with my hands immediately after I solder to it! I think the batteries sometimes fail and then they get hot. Not the other way around with a soldering iron.

    If you actually damaged 1% of your batteries by soldering you need to consider changing your soldering technique.

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  • yrralguthrie commented on emilyvanleemput's instructable Wirework Dragon Ring2 months ago
    Wirework Dragon Ring

    Flat nose needle pliers will mark the wire and detract from hard work. Best to use pliers with soft jaws made for bending wire.

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  • yrralguthrie commented on Make Everything's instructable How To: 100lb Anvil Stand2 months ago
    How To: 100lb Anvil Stand

    Unless your floor is perfectly flat you'll need to and two-by blocks for feet.

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  • The $1 Pocket Microscope - Explore the World Around You at 80x and 140x!

    I know you mean well, but for $15, there are kids microscopes that are far more useful. Lots of them. Thinking about it the whole premise for the development of the foldable scope is a little week. I would think that few underdeveloped world areas could not afford one of the cheap kids units. I suspect they would only be a few dollars in those areas. If a small village couldn't buy a 5 dollar ms, they probably also don't have any medical staff or person to interpret.It is a good instructable Just not a wide spread use for it.e,

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  • The $1 Pocket Microscope - Explore the World Around You at 80x and 140x!

    I'm really happy to see this project. Have wanted one of the foldscopes for some time.However; I would like to point out one thing: You stated that one of the problems with the foldscopes is that it is not yet available. Ah...neither is yours!

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  • yrralguthrie commented on RampedUpDIY's instructable Paracord Pocket Bullwhip2 months ago
    Paracord Pocket Bullwhip

    The end of the whip should probably not be feathered or frayed. The pop or snap is simply the tip exceeding the speed of sound and that frayed end will slow the tip down. Try a short piece of leather.

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  • Converting an Old Radio Into a Spotify Streaming Box

    Do you have to have someone help you cross a street? I have an aluminum garage door with a sign on it that reads, "Do not hit your head here as you could be injured". Honestly I do.Pretty soon all exterior household doors are going to have warnings about going outside. (bugs, insects, steps, allergies etc.) That will no doubt lead to signs on the outside warning about going inside.

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  • Unusual Uses for Broken & Dull Drill Bits

    Skin cells are no big deal, what a person needs to watch out for are those brain cells that are dying off!!!

    90 percent of small drill bits are broken because of poor technique. Primarily not drilling straight. With small bits do not hold the handle of the drill. Use one hand to hold close to the chuck and the other to push down straight in line with the drill bit. It's very easy to bend and then snap the bit if holding the handle. Drills are very poorly designed, with the handle offset like they are. In metal a major reason for broken bits is a stuck bit. Try using lubricant and a proper speed. On bits below 1/8 in, get a chuck for and use a dremel type tool.

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

    Well, if it isn't a gas, then what is it? Has to be either a solid or a liquid. There's not but the three choices. LOLOh, I know, it is a figment of the imagination of some uninformed folks who believe in magic.

    No water is formed when hydrogen is burned in the presence of oxygen. No such thing as HHO or hydroxyl gas or oxygenhyrogen gas.

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

    There is no such thing as hydroxy gas. When hydrogen and oxygen mix water is formed.

    HHO...what is that?

    Correct. End of discussion for anyone with any understanding of physics.An open looped system...get a life. Just gobble-gook to fool a fool.

    Nope

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  • yrralguthrie commented on Mrballeng's instructable Make a Ring by Melting Pennies. 3 months ago
    Make a Ring by Melting Pennies.

    It would be a lot safer to use either discarded copper pipe or even buy a few feet of copper pipe. Or buy copper el fittings. They are cheap. Less that 50 cents in my area. 10 feet of 1/2" copper pipe is about $20. And no zinc oxide fumes. Don't use copper fittings that have been used as they probably were soldered together with lead solder. And the fumes from melting lead are worse than the zinc oxide.

    I had an out of work friend try that with quarters, half dollars and big dollar coins. Yes, infinite money, but only about 25 cents an hour profit. It takes a while to sort through $1000 dollars of coins to get maybe $1 worth of silver. Much less profit with pennies.

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  • Electromagnetic Fidget Spinner Accelerator

    Conservation of Energy. Magnetic friction is the same is both cases.

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  • yrralguthrie commented on Jackofalltrades_'s instructable Building a Wall-ball Court4 months ago
    Building a Wall-ball Court

    I am surprised schools still allow a game such as this since it involves competition and the possibility of a scrapped knee. (sarcasm)Good work.

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  • Electromagnetic Fidget Spinner Accelerator

    It would actually spin less. Same amount of energy input, but some is used to charge the capacitors so less spin.

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  • How Make a Flattening Jig for a Router

    Did you mean the trees were 45 cm diameter or 45 cm circumference? I only ask since a tree that diameter would be a really fast growing tree!

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  • yrralguthrie commented on sjowett's instructable Miniature Weather Station - ESP82666 months ago
    Miniature Weather Station - ESP8266

    I also like to make stuff and do. However there is not enough time in my lifetime for me to do the things I want, so I tend to buy things that are cost effective. I have to decide what I'm going to learn or make and just let the others go. Or buy and be an appliance operator.

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  • yrralguthrie commented on sjowett's instructable Minitaure Weather Station - ESP82666 months ago
    Minitaure Weather Station - ESP8266

    Very good.This is a well thought out and very good for learning some new skills project. If you can't build one yourself wireless simple weather stations can be had from Amazon for $40.https://www.amazon.com/Crosse-Technology-Wireless-...

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  • yrralguthrie commented on 陳亮's instructable ESP8266 WiFi Analyzer6 months ago
    ESP8266 WiFi Analyzer

    I see the 32 CYN price. That screen can't be bought for $5 in the US, or likely anywhere outside of China.

    On AliExpress that particular display is a little less than $14.00 delivery to US. Makes the project in US about $25. Cheaper than I thought. I yield.

    Your kind of hard headed. I noted the CNY price and the site also had the USD price printed. I quoted USD prices. To repeat that color LCD screen cost $32 dollars US money.

    Well it is an interesting project. Good for learning, but I looked up the display on those sites you sent me. It was about 32 USD without the header. That would make the cost of your project for someone without the parts about 50 USD. Batteries, ESP8266, cables and miscellaneous parts. I found a Lenovo 7 inch Android tablet on the same site for a little over 46 USD. I may see if I can order from those sites from the US.The only reason I pursued this issue is that it is important to know what a project would cost if someone would like to try it. You likely had some parts on hand and didn't include them in your estimate. I

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  • yrralguthrie commented on 陳亮's instructable ESP8266 WiFi Analyzer6 months ago
    ESP8266 WiFi Analyzer

    If that screen, batteries, cables, and ESP8266 cost you only $7.00 would you mind telling me where you shop?

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  • yrralguthrie commented on 陳亮's instructable ESP8266 WiFi Analyzer6 months ago
    ESP8266 WiFi Analyzer

    I personally see no reason for a dedicated wifi analyzer. Especially since I can buy an android device for what that cost. BUT your project is great for learning out to use some of the electronics available. Good job.

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  • yrralguthrie commented on ClenseYourPallet's instructable Handmade Wood Tape Measure 6 months ago
    Handmade Wood Tape Measure

    That is a really neat idea. Great istruct.

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  • Ultimate Crosscut Sled With Dust Collection

    How does that dust collector work? There is no dust at that point.

    Beg all you want. :) Most of the dust from the table saw is underneath the top. Very few sleds have a vacuum in that position. My dust collector is from under the saw. With it off some saw dust does collect on the top, with it on very little. Now if you also have a second dust collector where most of the dust is then you're good. That dust collector in that position will collect only a small percentage of the dust. There is no way on God's green earth that dust collector in that position removed 90% of the dust from any cut. I can put a hose within an inch of the blade in front and it won't get that much of the dust. The spinning saw blade throws it down into the normal dust collection channel. Which is built into 99 % of all saws. If you are cross cutting a 12" panel th...

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    Beg all you want. :) Most of the dust from the table saw is underneath the top. Very few sleds have a vacuum in that position. My dust collector is from under the saw. With it off some saw dust does collect on the top, with it on very little. Now if you also have a second dust collector where most of the dust is then you're good. That dust collector in that position will collect only a small percentage of the dust. There is no way on God's green earth that dust collector in that position removed 90% of the dust from any cut. I can put a hose within an inch of the blade in front and it won't get that much of the dust. The spinning saw blade throws it down into the normal dust collection channel. Which is built into 99 % of all saws. If you are cross cutting a 12" panel that collection nozzle is 12 " from the cut at first. But you do whatever floats your boat. Good build otherwise, a bit repetitive, but good.

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  • Giant Homemade 16" Disc Sander (for the Lathe)

    Before you build a 16" disc sander, you might want to check the difference between the price of 12" vs 16" disks. Unless you have the money to buy $15 vs $3 each disks.Also if you have a way to do it put a very slight convex shape on the sanding disk. And tilt the axis of the disk by the same amount. Much easier to get a flat sanded surface. Believe it or not. Only the part of the sanding disk that is at a right angle to the base plate will be sanding. But since it's turning the whole disc is used. There will also be far less tendency for the piece being sanded to catch and jerk out of you hand.

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  • How to Drill Straight Holes Without a Drill Press

    I started to just let this go, but I wasn't talking nor commenting on metalworking processes beyond a hacksaw. I see there is a PRO by your avatar. Your statement is not correct.There are some machining techniques that work better without lubrication. Lubrication and cooling are not the same thing. Neither lubrication nor cooling aids in chip clearing. Lubrication requires a lubricant, cooling requires a coolant, and chip clearing usually requires pressurized air or flood coolant. I don't believe any of those are required with a hacksaw. LOLNone of these process are of much use when using a hacksaw. Unless you have super Pop-eye arms and you can run that hacksaw fast enough to get it hot. 50 years and I've never seen a hot one yet. Most hacksaw blades do not do well with oil ...

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    I started to just let this go, but I wasn't talking nor commenting on metalworking processes beyond a hacksaw. I see there is a PRO by your avatar. Your statement is not correct.There are some machining techniques that work better without lubrication. Lubrication and cooling are not the same thing. Neither lubrication nor cooling aids in chip clearing. Lubrication requires a lubricant, cooling requires a coolant, and chip clearing usually requires pressurized air or flood coolant. I don't believe any of those are required with a hacksaw. LOLNone of these process are of much use when using a hacksaw. Unless you have super Pop-eye arms and you can run that hacksaw fast enough to get it hot. 50 years and I've never seen a hot one yet. Most hacksaw blades do not do well with oil for lubrication. Oil will not aid in chip clearance. There will be no chip clearing problem with a hack saw. Because the chips natural drop away. Chip clearing is required when machining a hole or cavity. Hard to do that with a hacksaw. Most machinists that use a metal cutting bandsaw, use them dry. One reason being with oil the chips will clog the cut. A metal cutting bandsaw is run slow to resist heat. Heat is what destroys tools and cutters. Oil will in fact cause chip buildup. What shortens the life of a blade or cutter is heat. Lubrication might ease the hack saw blade through the material, but it is not acting on the teeth of the hacksaw. That would be counterproductive. Making the teeth slicker, so they don't cut as well. All oil on a hacksaw will do is foul the cut and make a mess.

    There is not really any reason to lubricate a hack saw blade when cutting. Just makes a mess.

    Well I don't see you latest story. But go ahead a put oil on the hacksaw blade. It won't do much if any good...and it causes a mess. So far as making the blade last longer, I suspect any benefit there cost wise will be off set by the minute cost of the oil. Like I said, horizontal metal cutting band saws seldom use oil. It's just not needed for low speed cutting. I've cut 1 1/4in x 8 in steel without oil with a band saw and the cut looks really good. No heat buildup. The cut took about 20 minutes. (normal) On the other hand on my vertical mill I use some sort of lubrication and possibly coolant on any sort of metal.

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  • yrralguthrie commented on diggoryrush's instructable Modern Bedside Lamp from Scraps 8 months ago
    Modern Bedside Lamp from Scraps

    Acrylic is acrylic, but sometimes called plexiglass in the US.But hold on to your pocket book when you price a piece that thick. I found it at $40.00 a square foot plus shipping.

    Very good idea and great creativity.

    You might be able to find acrylic at a place that makes large aquariums. Plexiglas is the generic term for acrylic.Plexiglas is the Arkema brand name.

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  • yrralguthrie commented on lonesoulsurfer's instructable Firestarter & Tinder Case V28 months ago
    Firestarter & Tinder Case V2

    Good construction and methodology, but why did you remove the striker mechanism from the lighter? And why rely on tinder when there is propane in the lighter if you leave it together?

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  • yrralguthrie commented on dale1952's instructable Auto Fisherman Hook Setter8 months ago
    Auto Fisherman Hook Setter

    That is not going to be legal many places in the US. In the US fishing is a sporting hobby. Unless used in an area of the world where the fish caught are necessary for sustenance it should never be used.Can't be nice here, that's not a sporting device, it's cheating and deserves a fine if caught.

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  • yrralguthrie commented on mikeasaurus's instructable nap tub8 months ago
    nap tub

    Not usually a fan of the electric police, but I don't believe I would put that outlet in the drain. And I would have put the dimmer where it would be easier to use, say under the curved rail of the tub close the the head end. That lever is a cute idea, but if used by the person in the tub they will have to be more agile than I am. I admit that wouldn't take a lot...but still. To satisfy the electric codes just put a free standing floor lamp at the head end. Or even mechanically fasten a commercial lamp to the tub. If the lamp is coded to be safe to touch then anything it touches is also. All those seams in the carpet also detract from some serious hard work. How about a special made cover for a fitted foam mattress? You did some serious professional work, but the carpet is ...

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    Not usually a fan of the electric police, but I don't believe I would put that outlet in the drain. And I would have put the dimmer where it would be easier to use, say under the curved rail of the tub close the the head end. That lever is a cute idea, but if used by the person in the tub they will have to be more agile than I am. I admit that wouldn't take a lot...but still. To satisfy the electric codes just put a free standing floor lamp at the head end. Or even mechanically fasten a commercial lamp to the tub. If the lamp is coded to be safe to touch then anything it touches is also. All those seams in the carpet also detract from some serious hard work. How about a special made cover for a fitted foam mattress? You did some serious professional work, but the carpet is gross amateur work.

    Honestly I'm impressed with how much work you did, also with the level of craftsmanship. Your photos of the base showed how well you can fabricate. But that light while it's cute, doesn't work. And I really wish you would fix that carpet. Leave the knob on the foot, it can be operated by foot, but the light is almost useless at the foot. Cannot read by it.

    Never going to be able to hide those carpet seams without cutting it in the tub and cutting both edges at once, laying the down and cutting two more. Unless both edges are cut at the same time, gaps will occur.

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  • Homemade Firepit from Helium Tank (No welding!)

    Most folks will fill the propane tank up with water, not just rinse it out.

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  • Recycle Your Dead Old Laptop Battery

    If you just replaced the battery(s) and put the pack back together you could use it in the computer. Also that charger you used is for 1 18650. To charge a pack of batteries outside the computer, you need to buy a charger made to charge multiple batteries. They have a wire to + and - and also a wire to each battery junction. Your batteries will not last long if you use that single cell charger.http://www.ebay.com/itm/4S-Li-ion-Lithium-Battery-...And on that site there is a picture of how to hook it up.

    Believe you are wrong. You have it backward.Yes, it will do balanced charging. That is the reason for the extra leads. It is not for discharging it is for charging. There will be a charging voltage across each battery not the whole pack. I have used them, and they work exactly like the original charging boards built into the computer battery packs.You can't use the original battery pack charger from the computer battery pack because it requires a code from the computer to begin to work. These don't of course. If you charge a mismatched battery pack with the charger you specified they will not last long. If all of the batteries are new and in good shape they will last longer, but eventually get out of balance.

    You have things backward.

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  • "With U Smart Sole" DIY GPS Embedded Smart Shoe sole #MITBetterWorld

    Really good idea, but it might be better to not build it into a shoe, but a tag that can be attached to the shoe or piece of clothing. If putting it on a child, something that would blend in or be hidden either in a shoe of clothing. Pretty limiting and expensive to make shoes with the device. But a simple tag or pendant would work...wait they already have that. https://www.thetileapp.com/and many other sites.

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  • Plastic Smithing: How To Make your own HDPE Plastic Anything (DIY plastic lumber)

    I find it easier to add 40 to the temperature either Fahrenheit or Celsius and then either multiply by 5/9 if going from larger number (Fahrenheit) to smaller number (Celcius). Then subtract the 40.If going from Celsius to Fahrenheit do the same thing except multiply by 9/5. Celsius to Fahrenheit is particularly easy since I just round off the Celsius temperature to a multiple of 5. Add 40, multiply, subtract 40

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  • yrralguthrie commented on Henk Rijckaert's instructable The Zipper Alarm11 months ago
    The Zipper Alarm

    :) ah...I don't think so.

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  • yrralguthrie commented on SpecificLove's instructable 10 Awesome Uses for PVC Pipe11 months ago
    10 Awesome Uses for PVC Pipe

    These are creative used for PVC pipe and at the risk of sounding like the PVC police, you might want to think about using the pvc for a handle or for a pet barrier. As the author has stated it will break, and it tends to shatter into sharp pieces when it does. Sharp enough to cut flesh.

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  • yrralguthrie commented on Penolopy Bulnick's instructable Snickers Salad11 months ago
    Snickers Salad

    Looks good, but sorta defeats the purpose of eating salad! :) :)

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  • Ink Removal From Soda Cans

    For those that feel they need to tell me, I know that the active agent in fingernail polish is acetone.

    It would be cheaper in the US to buy acetone instead of fingernail polish remover. Available at Walmart and hardware stores. Acetone is a mostly benign solvent.

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  • yrralguthrie commented on lonesoulsurfer's instructable Simple Fire Piston11 months ago
    Simple Fire Piston

    Well it's actually called the British Imperial system. And while Great Britain adopted the metric system starting in 1965. (the US ditto in 1975) That doesn't mean either country actually uses it. GB has made the biggest push to use the metric system. Scientist and such in both countries use metric. However; even in GB many times the 'British Imperial System' is still used.Metrication in the United Kingdom remains equivocal and varies by context. Most of government, industry and commerce use metric units, but imperial units are officially used to specify journey distances, vehicle speeds and the sizes of returnable milk containers, beer and cider glasses (though fresh milk is often still sold in multiples of pints, with the metric equivalent also marked). Imperial units are also o...

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    Well it's actually called the British Imperial system. And while Great Britain adopted the metric system starting in 1965. (the US ditto in 1975) That doesn't mean either country actually uses it. GB has made the biggest push to use the metric system. Scientist and such in both countries use metric. However; even in GB many times the 'British Imperial System' is still used.Metrication in the United Kingdom remains equivocal and varies by context. Most of government, industry and commerce use metric units, but imperial units are officially used to specify journey distances, vehicle speeds and the sizes of returnable milk containers, beer and cider glasses (though fresh milk is often still sold in multiples of pints, with the metric equivalent also marked). Imperial units are also often used informally to describe body measurements and vehicle fuel economy. In schools, the use of metric units is the norm; however, schools must also teach childrenabout those imperial units that remain in common usage in the UK.I believe that in 2009 the requirement to ultimately force the use of the metric system was removed due to public pressure.I believe "stones" is still used sometimes to specify weight. British money units after Brixit are pounds, pence ?It's not as easy as some would like to switch from one system to another. It's very hard to think in metric if bought up 'Inperial'. It's pretty complicated to switch plumbing in the US to metric simply because there would be a need for two sizes for many, many years. I've been a proponent of the use of the metric system, am 70 and I still have to estimate 6 centimeters to 2+ inches to visualize it.

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  • yrralguthrie commented on lonesoulsurfer's instructable Simple Fire Piston12 months ago
    Simple Fire Piston

    3/8" what? Tubing or pipe.3/8" copper tubing is generally not rigid. Pretty hard to make it straight enough. There is really no reason to stick to any particular size. Just match the tubing to the dowel. Or in my case I'll just make a dowel to fit whatever I have handy.

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  • yrralguthrie commented on lonesoulsurfer's instructable Simple Fire Piston12 months ago
    Simple Fire Piston

    In my part of the US 5/8 copper tubing is going to be hard to get. Perhaps a plumbing wholesale house. Maybe electrical or heat and air. I'd have to use something else. But nothing critical there.

    Two things. Most copper tubing in the US is still English sized. Has to be to match older plumbing. Ditto wood dowling. So you may need to experiment to find the right size.Second I've use lint as a fire starter side by side with cotton balls. The cotton balls are easier to light and burn much more vigorously and longer. lint is naturally of unknown composition. Most clothes these days are treated to not burn, just smolder. Even or especially cotton.

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  • yrralguthrie commented on JP'sW's instructable Transfer Photograph onto Wood12 months ago
    Transfer Photograph onto Wood

    Just use sandpaper and you hand to round over the edges. If you use a router 9 times out of 10 it will show starts and stops or tilting and you'll have to sand anyway.

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  • Industrial Isolation Transformer From Trash

    Lacking a ballast transformer two power transformers can be used. Connect the secondary windings together and the voltages on the primary windings are equal. Best to use identical transformers. Likely more isolation that way, don't know. Leave that to the experts on here.

    I guess that I am somewhat deprived of experience. I've never seen a ballast transformer that was't potted.

    An isolation transformer will only protect against shocks from an energized connector to ground. It will not protect against shocks if you grab both the wires of the output of the transformer. They also protect equipment against ground loops. Mostly used to protect equipment rather than people. So an isolation transformer would be good to use to power a low voltage power supply for experimenting, but not particularly to protect a person from shock. So if you use one do follow safety rules because you believe the isolation transformer will protect you. Others have probably mentioned it but a builder needs to be sure to keep the phase correct.

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  • Designing a Dual 40A PWM Speed Controller for Brushed Motors

    Very good instructable for learning.

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  • yrralguthrie commented on wold630's instructable Swedish Fire Torch1 year ago
    Swedish Fire Torch

    I've lived in Oklahoma for 50 years. What happened in Oklahoma with an axe?

    Jerry, I live in Oklahoma, what are you talking about?. Using an axe here is perfectly fine.Dumb? Why? Your opinion? Or some reason?

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  • yrralguthrie commented on Tecwyn Twmffat's instructable Food for the Apocalypse1 year ago
    Food for the Apocalypse

    In an apocalypse there will be no government. In an emergency the government will not shut down distribution of anything. If anything they will speed up distribution of whatever. They haven't in the past, re Katrina, about as emergency as it gets. The government has no plans about what to do about an apocalypse, other than try to keep some semblance of government in place. There is no conspiracy. All in the head of a few wrong headed people. Not that some in the government would not like to build a conspiracy, but there is no way to keep it quiet government wide. And it would have to change every 4 or 8 years. That is one of the beauties of halving a Federal election every 2 years.Just not possible.

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  • yrralguthrie commented on Tecwyn Twmffat's instructable Food for the Apocalypse1 year ago
    Food for the Apocalypse

    Just curious. How is artificial intelligence an apocalypse? No the stores won't be out of food in three days. You just read part of my comment. There will be no one to eat the food. I differentiated between an emergency (storms, etc) and a real apocalypse.No use to prepare for all those things you mentioned if no water.

    Food is not the problem. You won't live to harvest without water.

    In any real apocalypse, not just a few days or weeks emergency, 99 percent kof the population will be dead. I think if I am left alive I'll raid the local grocery stores for the first year. In my US county there would likely be less than 100 folks left in the entire county. If one of them gets greedy and wants more than their share I'll raid them.

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  • Start Your Car With a Rope (Dead Battery Life Hack)

    Hmmm...I don't think manual shift cars will start unless the clutch is depressed. I believe this is made up to look like the car started. If a manual shift car is in any gear the clutch has to be depressed to start it. Sometime the car can be rolled down a hill and the clutch "popped" quickly and immediately depressed and it will start. That would be pretty hard to do if outside with a rope started on a wheel. I had a 2003 manual Saturn and if you just rolled it down a hill in gear and let the clutch up it would just slow down quickly. Maybe having the parking brake on changes things????

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  • DIY HID IR keyboard (FLIRC clone)

    Please read, I did not say I saw no magic in DIY. My statement was that I did not see any magic in spending more money on a project that what it could be built for. I prefer to spend that money on a different DIY project. I believe you are incorrect on the price of the online FLIRC. But it makes no difference you do what you want. I won't denigrate you for doing that. Not sure why you call me names, unless that is the only argument you can make. I really don't see why you want to attack my character for wanting to do something different. I thought that was the essence of DIY. The project may have not been done by anyone on Instructables, but it's well documented as you know and did you make up your own schematic or get one from elsewhere on the internet?See, I've disagreed wi...

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    Please read, I did not say I saw no magic in DIY. My statement was that I did not see any magic in spending more money on a project that what it could be built for. I prefer to spend that money on a different DIY project. I believe you are incorrect on the price of the online FLIRC. But it makes no difference you do what you want. I won't denigrate you for doing that. Not sure why you call me names, unless that is the only argument you can make. I really don't see why you want to attack my character for wanting to do something different. I thought that was the essence of DIY. The project may have not been done by anyone on Instructables, but it's well documented as you know and did you make up your own schematic or get one from elsewhere on the internet?See, I've disagreed with you without calling you names or questioning your abilities. You have gotten upset because I said, "because it's cheaper" wow!

    Actually I don't need instructables to make things just to make them. So in that case it is not the place for me. But I do very much like to see unique or new ideas. Making something that I can buy cheaper nah, I'm not going to do that. There was nothing educational in the post, so I would indeed buy it. And I can't see how you know enough about me to make a judgement on what I should be doing. I don't judge people. Only the projects. Neither should you. Why do you feel like you need to judge me because you don't like a comment I make. If you had said "because of the magic of diy" and left it at that you would have had a positive comment. I am a die hard DIY'er, but I would never DIY something that is going to cost me money I could use elsewhere. Don't see any mag...

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    Actually I don't need instructables to make things just to make them. So in that case it is not the place for me. But I do very much like to see unique or new ideas. Making something that I can buy cheaper nah, I'm not going to do that. There was nothing educational in the post, so I would indeed buy it. And I can't see how you know enough about me to make a judgement on what I should be doing. I don't judge people. Only the projects. Neither should you. Why do you feel like you need to judge me because you don't like a comment I make. If you had said "because of the magic of diy" and left it at that you would have had a positive comment. I am a die hard DIY'er, but I would never DIY something that is going to cost me money I could use elsewhere. Don't see any magic to that.

    "A while ago I got to know about the FLIRC IR receiver which I thought of buying. But I thought, Hey! Why buy something I can make at home."Because it's cheaper???

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  • How to make Pressed Penny Wind Chimes (+ Sound file)

    Well I didn't read the idea since it's not a new idea. Has been done over and over. Just saw the picture and headline. I've actually made some chimes in my life. Some that were quite melodious. My neighbors to the person did not like them after a few days. They used the word annoying.

    I wonder if anyone has thought about how annoying wind chimes are to neighbors.

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  • yrralguthrie commented on The Sam D's instructable Automatic Lights for Tool Chest1 year ago
    Automatic Lights for Tool Chest

    Might actually lower the cost since no separate led and wiring might be needed. If the light from the indicator is enough.

    Good idea. Since little light is needed one might be able to use these.http://www.ebay.com/itm/5X-5P-Momentary-1NO-1NC-Re...Momentary pilot lights. Just add the power. Just make sure the light comes on correctly.

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  • yrralguthrie commented on the guy11's instructable paracord steering wheel wrap1 year ago
    paracord steering wheel wrap

    Just a note: many driving schools no longer advocate driving with the hands at 10:00 and 2:00. In fact they teach holding the steering wheel at 7:00 and 5:00 where your paracord is. The reason is that the steering on many (most) new vehicles is very sensitive and if startled a person holding at 10 and 2 will severely over correct. It's significantly harder to turn the wheel quickly when holding at 7 and 5. Much less tendency to over correct.

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  • Cheap, crash resistant portable T Copter (in apprx 200 USD)

    The main reason few make a T-copter is the number of props. To keep the devise from rotating on it's own the number of clockwise rotating props and the number of counter clockwise rotating props have to be equal. The t-copter is not going to be inherently stable. One motor will have to constantly turn much faster that the other two. A quad copter would be much more stable and easier to hover.

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  • How to Make The Best Homemade Stylus Ever Made!

    The yellow foam on Scotch Bright scrub pads works well as the tip for a stylus. Don't use the green side! Just cut off a piece of the yellow foam, shape it and put it in a metal tube. With this foam the tip can be shaped. Lots cheaper than conductive fabric.

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  • yrralguthrie commented on TheFieryTV's instructable HOT ICE1 year ago
    HOT ICE

    By the way vinegar is actually good for a person to consume. My mother used to make vinegar pies for my dad. I refused to eat them. Recipes are easily found on the internet. I don't know how much acetic acid the body could handle, but that wouldn't be a good thing to experiment with.

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