Recent content by GulfOnBoard

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    What is the thickness of a steel bar with holes?

    I’m trying to calculate the thickness of a steel bar with holes. It’s hard to describe so here’s a picture Imgur: The magic of the Internet (the white circles are 10mm holes and the dark grey area are 2mm steel wallthickness). If the holes would be horizontal inline to each other with 2mm...
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    Chemical/Paint Make Your Own Refillable Aerosol Spray Can

    To make a refillable spray can that will work in cold environments, without the disadvantage of the usual ”diy” methods of compressed air or co2. Here’s a very small version of a refillable spray can that’s actually very similar to the concept of my own. If I simply attach a spray nozzle to a...
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    Chemical/Paint Make Your Own Refillable Aerosol Spray Can

    Hello. I want to make a own refillable aerosol spray can, but I don’t know really how to do it. I’ve seen quite a few videos/tutorials on youtube where people attach a bicycle valve with epoxy to a spray can and use compressed air to pressurize it. But I want the gas to be...
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    I Is it possible to propel a spray can with gunpowder?

    Do you mean a water pump/electrical enginge? I haven’t seen any such device for high pressure that’s small. If you mean this:kind of pump sprays, they are not powerful enough, I want the spray can to be equivalent to a highly pressurized fire extinguisher. Will this design work? If I use...
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    I Is it possible to propel a spray can with gunpowder?

    Is it possible to pressurize a spray can with gunpowder or something similar, in order to make a reliable spray can with high pressure? I’m asking this question because a small amount of gunpowder generates a huge amount of propelling gasses when ignited. I need to make a compact spray can...
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    Can Pyrotechnic Pepper Spray Be an Effective Non-Lethal Weapon?

    Hello. Ordinary pepper sprays on the market are cans pressurized with propane, butane etc., that propells the liquid pepper through a spray nozzle. So I thought, would it be possible to make a pyrotechnic composition that act as pepper spray? Either that the burning powder itself act as a...
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