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recoiling spudgun mounts

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recoiling spudgun mounts

Unread postAuthor: iknowmy3tables » Fri Jul 20, 2012 9:38 am

hey guys, it's been awhile but I actually made a legit cannon for the first time in a few years. It's a 12 foot long pneumatic with a 2 inch barrel made with a 1.5" dust collector valve. I've been firing some slugs made from 1.5" pvc pipe filled with concrete and I've been getting a hell of a lot of recoil. I've gotten some minor cuts and scrapes from trying to brace it, and when I don't brace it the cannon will relocate itself 7 feet across the backward when firing a 6 inch concrete slug.

I want to tame some of this recoil and me and my friend were thinking of making recoiling mount because it would be awesome. However I'd like to see what other people have done in the way of recoil management.
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Unread postAuthor: jackssmirkingrevenge » Fri Jul 20, 2012 9:49 am

Come on man, pictures ;)

A muzzle brake will go some way to reducing recoil, but basically you want it to be on some sort of rail that is free to move with little friction, then add some sort of buffer to soften the movement. There are a lot of things you can use for this application, coil springs, bungee chord, automotive gas struts etc.

You can also direct the pilot valve backwards to provide some minimal thrust to counteract the recoil.
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Unread postAuthor: Zeus » Fri Jul 20, 2012 7:08 pm

I think you need a MrC style recoil bar, and a teaspoon of cement.
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/sarcasm, /hyperbole
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Unread postAuthor: CS » Sat Jul 21, 2012 4:07 am

Not a mount, or a gun with recoil, but what the hell.

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Unread postAuthor: iknowmy3tables » Sat Jul 21, 2012 10:20 pm

jackssmirkingrevenge wrote:Come on man, pictures ;)

if you insist, I was reluctant to add one because of the DWV fittings, but if any of you recognize me I hope you know I already know the risks and I used to oppose DWV fittings. just know that it's a risky but informed decision that I have made

jackssmirkingrevenge wrote:A muzzle brake will go some way to reducing recoil,

in this case the recoil is primarily from my heavy projectiles so even the best muzzle brake wouldn't fix my problem.
jackssmirkingrevenge wrote:but basically you want it to be on some sort of rail that is free to move with little friction, then add some sort of buffer to soften the movement. There are a lot of things you can use for this application, coil springs, bungee chord, automotive gas struts etc.

yeah that's basically what I want and I'd like to see examples



Zeus wrote:I think you need a MrC style recoil bar, and a teaspoon of cement.

cool, I can't quite find it can I have a link?
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Unread postAuthor: jackssmirkingrevenge » Sun Jul 22, 2012 5:48 am

iknowmy3tables wrote:just know that it's a risky but informed decision that I have made


It would be a shame if that handsome face had to be ruined by PVC shrapnel ;)

in this case the recoil is primarily from my heavy projectiles so even the best muzzle brake wouldn't fix my problem.


It would certainly help though, even a rudimentary T-type will make a difference.

yeah that's basically what I want and I'd like to see examples


How about some pipe which sleeves over the chamber, which would be where you hold it from, and bungee chord?
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Unread postAuthor: iknowmy3tables » Sun Jul 22, 2012 11:10 am

How about some pipe which sleeves over the chamber, which would be where you hold it from, and bungee chord?

I had thought of that but a pipe sleeve wouldn't keep the gun upright, so it's a little bit more complicated than that, which is why I'm looking examples in other spudguns
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Unread postAuthor: ramses » Mon Jul 23, 2012 9:30 pm

Put the sleeve around the barrel, so gravity holds the gun upright. Or add slots in the sleeve and lugs on the chamber/barrel. Whatever bungee cords could be attached to lugs than, as well.
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POLAND_SPUD wrote:even if there was no link I'd know it's a bot because of female name :D
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Unread postAuthor: Zeus » Mon Jul 23, 2012 9:34 pm

iknowmy3tables wrote:Cool, I can't quite find it can I have a link?


Linky

It's the bar sticking out the side, dig that into your guts, it transfers the recoil in a slightly more comfortable way.
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