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barrel support help.

Post about things you have launched or thought about launching. Also post about various materials used for building cannons. No posts about explosive projectiles!
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barrel support help.

Unread postAuthor: 8tonsemi » Mon Jul 23, 2012 3:36 pm

I need help finding a good barrel support for my gun its a 2inch by 3 1/2 foot chamber and a 5 foot golf ball barrel reinforced with 2 inch schedule 80 pvc. If you have a idea for a barrel support for this gun please tell how its made. Thanks
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Unread postAuthor: jrrdw » Mon Jul 23, 2012 4:16 pm

A short piece of 2x4, dryer vent screw clamp and a 2" hole saw will work wonders... :wink:
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Unread postAuthor: mattyzip77 » Mon Jul 23, 2012 4:20 pm

I didnt even bother with a barrel support on my cannon. But you could bevel a piece of wood and clamp barrel and chamber together with a hose clamp.
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Unread postAuthor: mark.f » Mon Jul 23, 2012 7:50 pm

mattyzip77 wrote:I didnt even bother with a barrel support on my cannon. Think they look gay. But you could bevel a piece of wood and clamp barrel and chamber together with a hose clamp.


They keep the brittle PVC barrel from flexing during firing... it's something to bother with.
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Unread postAuthor: mattyzip77 » Mon Jul 23, 2012 8:44 pm

I understand what they are for, just didnt see the need as my barrel has no bend or lag to it.Straitvas an arrow and does not move.If it were longer like 10 feet then I would.be all for the support.
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Unread postAuthor: MrCrowley » Mon Jul 23, 2012 8:58 pm

Only shooting golf balls with a barrel 5' or less, you're probably OK but when you're shooting a heavy projectile or a more powerful cannon, you should definitely use one. I realise this is an extreme example, but the ABS barrel I used to use on my hybrid was more or less rigid and didn't sag, yet when firing the thing looked like an arrow shaft mid-flight. It was a bit scary to see it played back on video.

edit: Oh and the barrel on my hybrid even had a support half way down its length; imagine how much it would flex if I had used none at all :shock:
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Unread postAuthor: Spud Destruction » Mon Jul 23, 2012 9:26 pm

wow i have never seen pvc look like an arrow, crazy. anybody have a video of this so we can see what your talking about MrCrowley. Ive never seen my barrels do this but again they are 3-4' max.
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Unread postAuthor: MrCrowley » Mon Jul 23, 2012 9:53 pm

I think I only saw it when I went frame-by-frame on the raw footage; don't think I uploaded a slow-mo version in one of my videos.
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