5 replies to this topic

[texmustache]

Okay, i'd like to know what sorts of pipe moves smoothly together, I.E. the I.D of one is close to the O.D of the other. Now, i know it differs from brand to brand, etc, but i'd like to know the most common types for moving parts. Please don't say brass, because i am well aware that brass is the most flexible material for building breechs, bolt-action, etc. However, i don't really want to use brass, i'd prefer any schedule PVC, CPVC, etc. This includes endcaps, or other things. If this is a stupid question, i'm sorry.

Edited by texmustache, 01 March 2004 - 08:52 PM.

[cxwq]

Any size PVC fits nicely in the corresponding fittings - endcaps, couplers, whatever.

As far as I know, there aren't any good fits to be had between two sizes of pipe. This will vary depending on the manufacturer, however, since PVC is only standardized on pipe OD and ID varies somewhat.

Just curious - why are you unwilling to consider brass since it's obviously the best material for smoothly nesting several sizes?

[texmustache]

Oh, i dunno. Brass probably would be the best bet, but i've heard its easily damaged, so i'm not sure wether i would be able to make a whole gun out of it. I might use it for some parts, but i'd need to find a hobby store first, and some cash .

[andrew01]

Right now I am in the process of making a bolt action rifle which uses a brass bolt. The rest of the gun is made from pvc and it all seems to work quite well. If I were you I would make most of the gun out of pvc then nest the brass in the pvc and make the bolt. This way you dont spend too much money on brass and you also get to use pvc. Hope this helps.

-Superintendent

[xedice]

I IMed boltsniper not too long ago on how he got his PVC to slide with each other to make his bolt action. He said something about different schedules/PSI ratings of PVC. The lower PSI ratings have thinner walls enabling some schedules of PVC to slide with each other. However, I have yet to find PVC that slides with each other at my local home depot / lowes / ace hardware.

Edited by xedice, 02 March 2004 - 02:29 PM.

[MysticFalcon182]

Crayola barrels slide fairly nicely inside 1/2" PVC. You could also use copper tubing, and a lubricant would help too.

~Mystic~