Show us your pneumatic spud gun! Discuss pneumatic (compressed gas) powered potato guns and related accessories. Valve types, actuation, pipe, materials, fittings, compressors, safety, gas choices, and more.
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MrCrowley
- Moderator

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Sun Jun 10, 2007 11:59 pm
A-98 wrote:tis a good idea. basic rule of thumb, if its under pressure, your main valve, and moves, you need a bumper.
So your saying a diaphragm needs a bumper

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Velocity
- Sergeant

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Sun Jun 10, 2007 11:59 pm
I would drop the spring. A hose bumper will be fine for preventing the piston from damaging the valve when it actuates (assuming that you installed the hose properly). A spring just gets deformed (thats my experience at least) unless you put it in perfect. It can also easily hinder the movement of the piston if it gets bent out of shape. The only real advantage of a spring is that you no longer need to fill from behind the piston (useful in semi-automatic spudguns).
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hi
- Staff Sergeant 2

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Mon Jun 11, 2007 12:03 am
how does one "properly" install a hose? the piston is actually in the bushing of the pilot, like the mauler valve, so a hose is kinda big, but ill do it if its really better than a spring.
the spring by the way has a maximum force of about 5 pounds, i messured on a scale, so i dont think its enough.
"physics, gravity, and law enforcement are the only things that prevent me from operating at my full potential" - not sure, but i like the quote
you know you are not an engineer if you have to remind yourself "left loosy righty tighty"
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A-98
- Corporal 5

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Mon Jun 11, 2007 12:12 am
MrCrowley wrote:A-98 wrote:tis a good idea. basic rule of thumb, if its under pressure, your main valve, and moves, you need a bumper.
So your saying a diaphragm needs a bumper

darnit, a loop hole. ok....maybe it isnt a rule of thumb, more of a ..erm...thing....
lol
but, let me rephrase that, if involves a piston, use a bumper.
There are rules, and then there are hundred dollar bills.