SpudFiles

4" Chamber
2" barrel(OD)


I was thing two 4" saddle tees and two 2" saddle tees(do they make them?), but that might be too expensive. I tried making wooden supports with a jigsaw, but I couldn't cut it right and it would make the barrel crooked.... and that would put stress on the fittings.

There's got to be an easier way. Maybe something already made for this type of thing?

Is this for a co-axial, an inline or an over/under?

For a coaxial you slice parts of fittings off, if over/under you can make a support and fasten the barrel to the chamber.

If it's an inline I'd recommend sleeving the barrel with another piece of pvc for support.

I doubt you would use saddle tees for the barrel support in a coaxial.

I'm assuming this is an over-under cannon. If it isn't then this won't make sense.

The saddle tees are a fine idea. I don't think I've seen 4" ones, but no doubt they exist.

How is your jigsaw cutting the wood crooked? Is the blade in wrong, or is it user error? It would be relatively simple to cut out a slab of wood and hose clamp the barrel to the chamber with the wood sandwiched in between.

A router fitted with a straight cutting bit, mount the router on a trammel.

Cuts perfect circles every time.

If you don't know what I'm talking about...

http://images.google.ca/images?hl=en&um ... el&spell=1

Thanks guys. I just figured out a low cost way myself though. I don't have router:(

Just take some DWV tees and use a jigsaw(or w/e else) to cut off a strip on the back, essentially converting them to snap on tees. Then I'll just put some hose clamps and it should be good to go.

Like this:

jmccalip wrote:4" Chamber
2" barrel(OD)


I was thing two 4" saddle tees and two 2" saddle tees(do they make them?), but that might be too expensive. I tried making wooden supports with a jigsaw, but I couldn't cut it right and it would make the barrel crooked.... and that would put stress on the fittings.

There's got to be an easier way. Maybe something already made for this type of thing?

I can help you. You tried wood and it didn't work right? Heres how you can do it with wood and have it come out absolutely perfect every time. get your wood and cut out the rough shape that it needs to be. Leave it rough and leave plenty of extra wood that still needs to be removed.
Next, get some sandpaper and wrap it over your 4" barrel. Take the wood and press it down over the sandpaper covered barrel and move the wood back and forth until it conforms to the shape of the pipe. Do that again for the other side of the wood against the 2" pipe. Look at the pictures and pretend I had sand paper over the the pipes of the cannon. Then imagine I rubbed the wood back and forth over it until it conformed smoothly over the pipes. DONE! Thats one way I do it at least with plastics and anything else I want to shape over a pipe.

I have a bipod down by my fire pit, I'll take a pic for you sometime.