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  • Lovot commented on WhyyNot's instructable 3D Printed Portable Bladeless Fan1 year ago
    3D Printed Portable Bladeless Fan

    The reason it doesn't preform as well as the Dyson ones is because the small fan needs to be able to push some pressure, and computer fans are not really ideal for that, a 3D printed centrifugal impellar combined with a good brushless motor should vastly outpreform the computer fans.

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  • Lovot commented on VladoM's instructable Build Big Cnc at Home 3x2m1 year ago
    Build Big Cnc at Home 3x2m

    If anyone does try to weld their table, I would suggest a single pass E6010/E6011 weld (you NEED DC for E6010, E6011 doesn't really care about polarity much, but DC+ or AC are what it's designed for), I noticed that the root pass didn't really warp the material (single pass E6010/E6011), but additional passes using other rods did, most other welding processes and rods will have more warpage. Another trick, to keep the warpage as low as possible is to clamp the weldment to a thicker, stiffer piece of steel, like heavy wall square tubing, or thick angle iron, a good welding table works too. The weld shrinks as it cools, so position the stiffener, and clamps with this in mind.Oh, and E6010/E6011 are special, they are used differently than other rods, try to look up videos and instructions ...

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    If anyone does try to weld their table, I would suggest a single pass E6010/E6011 weld (you NEED DC for E6010, E6011 doesn't really care about polarity much, but DC+ or AC are what it's designed for), I noticed that the root pass didn't really warp the material (single pass E6010/E6011), but additional passes using other rods did, most other welding processes and rods will have more warpage. Another trick, to keep the warpage as low as possible is to clamp the weldment to a thicker, stiffer piece of steel, like heavy wall square tubing, or thick angle iron, a good welding table works too. The weld shrinks as it cools, so position the stiffener, and clamps with this in mind.Oh, and E6010/E6011 are special, they are used differently than other rods, try to look up videos and instructions on how to use them properly. DO NOT purchase an AC stick welder from Harbor Freight, the DC ones are just fine, but all you get from the AC ones is frusturation.

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  • Lovot commented on The Oakland Toy Lab's instructable Splitting Water the Easy Way2 years ago
    Splitting Water the Easy Way

    whatever works, and is easy to get.

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  • Lovot commented on The Oakland Toy Lab's instructable Splitting Water the Easy Way2 years ago
    Splitting Water the Easy Way

    Use baking soda, or washing soda instead of salt, and you won't have to worry about chlorine production. Baking soda is unstable it will decompose into washing soda, carbon dioxide, and water once it has been added to water. Boiling baking soda water will cause the decomposition process to happen much more quickly.

    Oxygen makes other things flammable, the high oxygen concentration in the syringe may cause it to set on fire if a match is applied, since the syringe is made of plastic, which is flammable.

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  • Lovot commented on NightHawkInLight's instructable Plasma Cutter From an Arc Lighter2 years ago
    Plasma Cutter From an Arc Lighter

    This doesn't have enough power to cut anything besides foil, any thicker and the metal will sink too much heat and resist cutting I would advise the use of a cheap plasma cutter with a fine tip (non transferred arc is preferable as the cuts from a transferred arc cutter tend to be messy when used on too thin of material), or a low power laser cutter, a sheet metal oxyfuel cutting tip may also work depending on the material.

    Plasma is plasma, it's a very small quantity, and low energy as well*, but it's still plasma.*High energy air plasma is brilliant white.

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  • D.I.Y Ultra Quiet Shop compressor from a refrigerator motor (compressor)

    I have done stuff with refrigeration compressors before, and the pressure relief valve is a definitely must, I tested a refrigeration compressor to see how much pressure it took before it would stall, it went over the upper limit of my 900PSI gauge, and started blowing rubber seals around the time figured finding the limit was probably not going to happen without a gauge off an oxygen regulator and higher pressure connections. there was no tank connected, only a couple feet of 1/4" ID high pressure hose, so it this all happened pretty fast. I'm going to guess it cleared 1000PSI before I shut it off.

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