piston issue

Cannons powered by pneumatic pressure (compressed gas) using a valve or other release.
jon_89
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it is half inch copper not pvc. a 3/4 inch cap will fit in one inch pipe correct?
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mopherman
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chaos wrote:
mopherman wrote:
jon_89 wrote: it moves back about an inch if that.
Well hell! theres your problem. it should move 1/8 -1/4 of an inch for a1/2 barrel
yer so make your piston a bit snugglier with the housing (use electrical tape, duct tape tends to grab), put some washers or a spacer of some kind behind the piston to stop it moving so far back.
chaos, how did you o-ring your piston? i dont think you could put a groove in a washer piston like yours?
searching for a modern day savior from another place,inclined toward charity,everyone's begging for an answer,without regard to validity,the searching never ends,it goes on and on for eternity
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chaos
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mopherman wrote:
chaos wrote:
mopherman wrote: Well hell! theres your problem. it should move 1/8 -1/4 of an inch for a1/2 barrel
yer so make your piston a bit snugglier with the housing (use electrical tape, duct tape tends to grab), put some washers or a spacer of some kind behind the piston to stop it moving so far back.
chaos, how did you o-ring your piston? i dont think you could put a groove in a washer piston like yours?
haha, yer..... lets not go there, that piston still gives me sh_t from time to time. when i pull it apart next ill disassemble it and show you guys how it works, oh and i wouldnt copy mine caus its really a piece of crap, im making a new one soon so yer ill keep yous updated
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mopherman
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chaos wrote:
mopherman wrote:
chaos wrote:
yer so make your piston a bit snugglier with the housing (use electrical tape, duct tape tends to grab), put some washers or a spacer of some kind behind the piston to stop it moving so far back.
chaos, how did you o-ring your piston? i dont think you could put a groove in a washer piston like yours?
haha, yer..... lets not go there, that piston still gives me sh_t from time to time. when i pull it apart next ill disassemble it and show you guys how it works, oh and i wouldnt copy mine caus its really a piece of crap, im making a new one soon so yer ill keep yous updated
does it use rubber washers like the SSS or o-rings?
searching for a modern day savior from another place,inclined toward charity,everyone's begging for an answer,without regard to validity,the searching never ends,it goes on and on for eternity
-Bad religion
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chaos
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mopherman wrote:
chaos wrote:
mopherman wrote: chaos, how did you o-ring your piston? i dont think you could put a groove in a washer piston like yours?
haha, yer..... lets not go there, that piston still gives me sh_t from time to time. when i pull it apart next ill disassemble it and show you guys how it works, oh and i wouldnt copy mine caus its really a piece of crap, im making a new one soon so yer ill keep yous updated
does it use rubber washers like the SSS or o-rings?
yer it uses rubber disks about 8mm thick, it does the exatct same jobs as o-rings do, it was all i really had to work with at the time and i still dont have time to lathe a new one up.
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