Couple brass Q's, again. (structural, mostly)

Deus Machina · 04-09-2007, 01:58 AM

Some I've asked before, and didn't get much of an answer. So, let's lump them all up in one. Want to clear stuff up before I start soldering.

Lewis Brass has a $450 minimum order, according to my emails to them. Which is more than I have for projects. Since I can't find 13/16" anywhere else, my next idea was to brace it with some 7/8" bits over it. Structurally sound, if correctly placed?

Anyone know what Palmer's sells theirs for, roughly? I didn't get an answer last I sent them a message.

I don't have any of the 7/8" OD, .745" ID on hand, but do have the bottom tube from my donor Magnum, which is a .04 sidewall. Which would make it... .795" ID. Strong enough to use for a 45* feedneck, or should I wait until I can get some .745 ID, or a solid bar and make an offset vertical? Anyone have an adapter for cheap?

I'm thinking I will probably sell this project when I'm done. I have a Phantom I enjoy as my pump, and I'm pretty poor and starting college soon, hopefully. Compared to a PMI Magnum, or Piranha LB, with 'cocker-sprung lowers, and a .45 single-trigger slider frame, anyone have a rough value off the top of their head? Wishfull thinking, I know.

I will, of course, post pictures once it's done.

Anyone else interested in ordering 13/16", .062 or .065 tubing? I'll throw in my share for an order if anyone else wants it.

edit: Also, how do most of you manage to seal up the air-transfer hole between the two tubes? Mine keeps wanting to pull the solder through it and leave gaps.

kidneythief · 04-09-2007, 12:19 PM

I always use a tiny brass tube as an isert for the transfer hole. You can either buy the right sized tubing or cut your own on a lathe.

-Jake

pillage · 04-09-2007, 01:05 PM

Quote:

Originally Posted by kidneythief

I always use a tiny brass tube as an isert for the transfer hole. You can either buy the right sized tubing or cut your own on a lathe.

-Jake

The thin tubing is easily purchased at hobby shops, art and craft shops, and some hardware stores. To help keep the solder from sucking in the holes you can also flair the tubing to completely lap over the outside lip of the gas hole.

Deus Machina · 04-10-2007, 06:25 AM

Thanks, guys. I'll pick some up tomorrow, then. There's a Hobbytown right next to where I work, and they have all that stuff. Got some spring wire from them.

Anyway, anyone wanna go halves on an order of barrel brass?

Rudisill · 04-10-2007, 11:56 PM

If you were to place such an order, I'd be interested in a small peice of it. About 16in I'd say.

But you might want to call palmers before you do that. You're guaranteed an answer over the phone.

Railgun · 04-11-2007, 12:48 AM

If we could get someone to handle the shipment recieving and cutting and reshipping I'd be in for a supply. Likely enough to do three or four guns. Even if I get out of paintballing I could always use the tubing for other projects.

So just how much tubing does $450 buy a guy these days?

Deus Machina · 04-11-2007, 01:13 AM

Well, I got an answer on Palmer's price. They appearently know it's impossible to get in small quantities and raise the price appropriately, or are giving you a heck of a deal on a piece already honed.

Rud, I'd happily sell a piece to you out of my share. Even let my mill at it beforehand, if you have dimensions. Thanks for the glowing feedback, BTW.

RG, I've had interest shown from someone else, too, and fired off a message to Lewis Brass. Earlier, they told me the price depends on the quantity, with no actual price or quantity mentioned. I just sent off another message, and should get a response on that relatively soon.

I *tried* to hit the minimum, roughly estimated price-per-foot from other places, by volume. Even that needs adjusting, and even more if a third person's hopping on.

We should get everyone that wants some on this! The more people join, the less a single person has to pay.

Z50 · 04-11-2007, 01:39 PM

If you don't mind honing the barrel out to your desired diameter, online metals sells seemless tubing with an Od of .75" and an Id around .67.

http://www.onlinemetals.com/merchant...owunits=inches

you can purchase by the inch or in standard lengths by the foot, it is a lot less then $450

Deus Machina · 04-11-2007, 02:53 PM

The problem with that is it would take a *very* careful honing to get it to .68 in a timely fashion.

Plus, the feed hole in the barrel is also .75. That wouldn't go over so well on 3/4 tube without bracing it.

Emerald Wolf · 04-11-2007, 07:28 PM

Well you could do what I did. I bought some of the 4130 steel tubing from Online Metals. Mainly because I thought the thinner wall might be a problem....It's pretty stiff, but I have yet to try cutting the feed yet.

The idea that I had sometime back was to use Sch 40 steel pipe, and ream it to 11/16....A 9 in long reamer was around $12-$15 iirc....With some *very* careful welding, it'd prolly be possible to extended that some....

Catchya on the Flip Side.....

Emerald Wolf -- hmmm....

04-09-2007, 12:19 PM	#2 (permalink)
kidneythief Lord humungus the Mod Join Date: Mar 2006 Location: Home Finally!!!	I always use a tiny brass tube as an isert for the transfer hole. You can either buy the right sized tubing or cut your own on a lathe. -Jake __________________ "I wish simply to be a decent person, yet I will always fear the retards" -Brian Hindt(geech) MCB Moderator Kidney Machine

04-11-2007, 12:48 AM	#6 (permalink)
Railgun MCB Member Join Date: Oct 2006	If we could get someone to handle the shipment recieving and cutting and reshipping I'd be in for a supply. Likely enough to do three or four guns. Even if I get out of paintballing I could always use the tubing for other projects. So just how much tubing does $450 buy a guy these days? __________________ Model airplanes are cool too!

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04-10-2007, 11:56 PM	#5 (permalink)
Rudisill Active Member Join Date: Oct 2006	If you were to place such an order, I'd be interested in a small peice of it. About 16in I'd say. But you might want to call palmers before you do that. You're guaranteed an answer over the phone.

04-11-2007, 07:28 PM	#10 (permalink)
Emerald Wolf Active Member Join Date: Apr 2006 Location: Denver, Colo.	Well you could do what I did. I bought some of the 4130 steel tubing from Online Metals. Mainly because I thought the thinner wall might be a problem....It's pretty stiff, but I have yet to try cutting the feed yet. The idea that I had sometime back was to use Sch 40 steel pipe, and ream it to 11/16....A 9 in long reamer was around $12-$15 iirc....With some very careful welding, it'd prolly be possible to extended that some.... Catchya on the Flip Side..... Emerald Wolf -- hmmm....