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Here is another project I have been working on. These pneumatic pistons I made have a lot of force just 20 psi due to their small diameter. This is just what I used because that’s what I had laying around, you could use ¾ if you want. Some skill is soldering is required.
½ inch copper tube
½ inch end cap (hole drilled dead center the same size of rod, ream out to fit rod)
Steel rod (I threaded the rod myself)
Faucet grommets (milled down to fit inside the pipe)
Spring to buffer the impact of the rod
Proper sized fittings. Shown are a few types of fittings that can be used. Like with most things use your imagination, but make certain that care is taken with the soldering. These can cause bodily harm.
The long white piston was made from a two piece adjustable 36” mop handle. I was just messing around when I made but found it will work perfect for my “Trash Can Trauma” prop.
As you can see I used one of my pistons for a Pop-Up that will go into a coffin.
½ inch copper tube
½ inch end cap (hole drilled dead center the same size of rod, ream out to fit rod)
Steel rod (I threaded the rod myself)
Faucet grommets (milled down to fit inside the pipe)
Spring to buffer the impact of the rod
Proper sized fittings. Shown are a few types of fittings that can be used. Like with most things use your imagination, but make certain that care is taken with the soldering. These can cause bodily harm.
The long white piston was made from a two piece adjustable 36” mop handle. I was just messing around when I made but found it will work perfect for my “Trash Can Trauma” prop.
As you can see I used one of my pistons for a Pop-Up that will go into a coffin.