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The HPC10

Built a pneumatic cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Unread postAuthor: qwerty » Sat Oct 31, 2009 3:52 am

Ok thanks i might see how epoxy pistons go. Also, on the how to, do you put the bolt and washer in before or after it has dried.

EDIT: :D i just got the piston to actuate pretty fast after a bit of fiddling with lube and different pistons and man this thing is loud :shock:
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Unread postAuthor: Willdebeers » Sat Oct 31, 2009 5:54 am

Now lets see what the new-impoved piston can do. ;)
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Unread postAuthor: spudguy100 » Sat Oct 31, 2009 6:12 am

Really really really nice qwerty. Me likey!
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Unread postAuthor: qwerty » Sun Nov 01, 2009 4:26 am

Now lets see what the new-impoved piston can do.

I'm guessing lots of power :twisted: and noise.
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Unread postAuthor: Gippeto » Sun Nov 01, 2009 10:11 am

qwerty wrote:I'm guessing lots of power :twisted: and noise.


I'm thinking that's a pretty good guess. :D

Congrats on getting it sorted. It's a real looker with that stock too.

Now...Go forth...and bring ye back the damage pics. :)
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Unread postAuthor: qwerty » Sun Nov 01, 2009 10:29 am

They will come soon. :)
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Unread postAuthor: qwerty » Mon Nov 02, 2009 11:08 am

Double post! :wink: The steel ball bearings came today (9.5mm) and at low pressures (50psi) they have alot of kick but unfortunatly ive got a leak so i need to fix that. PTFE tape dosen't seem to work that well anyone got any other ideas?
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Unread postAuthor: jackssmirkingrevenge » Mon Nov 02, 2009 11:21 am

I've had good results with araldite at up to 850 psi, seals well but if you need to take it apart you can still force it to open.
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Unread postAuthor: kenbo0422 » Mon Nov 02, 2009 11:53 am

Yes, you can turn PVC on a wood lathe. You would be better off having a clamped cutting tool, though, rather than a hand held tool. A clamp on a screw feed would be best. PVC doesn't mind a little higher turning speed but using a little oil while cutting will still help keep the cutting tool cool enough so that you are cutting and not melting and cutting.

I turn PVC on a mini lathe and use cheap steel for cutting tools rather than the HSS I use on aluminum and other metals. You can harden that cheap steel with a good heating and quick quenching for your purposes.

EDIT: Nylon is also do-able, easily.
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