[Randy]

I have an idea for a jig incorporating the ideas of alot of the ones around here, just something simpler for we dummies. The problem is i'm not tooled up or experienced enough to build it if I was. But I could build a receiver if I had this tool. Any gurus looking for a project?

 

[yosuthnmasa]

Sure, PM me with the details. Got a few other ideas brewing up myself.

 

[Oldgunner]

What?s the jig for? I use DeltaCad and like doing drawings of everything I build, I?d be happy to draw it for you if you could get a sketch of it together with some dimensions. Just send a PM and I?ll give you my address and then I?ll email you the drawing when I?m done.

 

[hcpookie]

Here's what I'm thinking -

1. Take a DPHArms receiver jig. Bend flat sheet steel (not the blanks, just steel sheet from aircraftspruce.com that has been cut to shape).
2. Using a template, to mark all the holes on the JIG and drill then ream (undersize) pilot holes into the jig.
3. Use a transfer punch to mark the receiver.
4. Remove the bent blank from the jig.
5. Drill the pilot holes.
6. Repeat for bottom holes.

Using undersize pilot holes, you don't have to worry about replacement bushings like the AR-15 jigs require, because a drill is never chewing on the holes.

 

[Randy]

I was thinking along the lines of a wedge shaped center piece the exact same size as the internal dimension of the reciever, sort of a shoe. Made with slots cut for the dimples and rails which could be installed before the bend around the shoe. It'd have alignment pins on the bottom and a lower plate with a square piece of stock attached that could be clamped in a vice to hold while the bending was being done with the hammer and wood method.

I don't think it's needs to be a solid piece of steel. Just a wedge shaped box with a couple of internal webs for strength and the reliefs down the side towards the narrow end

I think it'd be handy for we poor guys who don't have access, room or money for a press, or the need to be heavily tooled up to build just a few receivers. We'd exchange extra labor in the bending for a big savings tool wise. I'm also hoping it could be built for a bit cheaper than other jigs also....hoping

 

[DPH arms]

Randy,

We looked into the idea of installing rails before the bending and I have to say that it would be nice. We didnt do it simply because it would have drove up the cost of the jig. Our intention was to make a jig that worked right and o find a shop that would be dependable in supplying them. Well, in that I feel like we were successful. Your idea of useing a hammer and a block of wood to is a nice idea but I can tell you I measured pressures upwards of 4000 pound when pressing the first few during testing. The one thing we did want to do (for the guys who have limited space and funds) was to build a frame work that would mount to the box and go accross the top, that would allow you to use a cheap bottle jack turned upside down to press the flat into the box. It was something that we felt someone could easily do for themselves and would not have to pay the shipping cost on the extra weight (just not cost effective).

As for cost of the jigs, if you are equiped or if you have access to a shop then you could probably make one and save a few bucks. We have around $60 invested in just material and another 4 hours of labor for the machine time that the shop charges us for.

If I can help you out in any way let me know.

Scott

I was thinking along the lines of a wedge shaped center piece the exact same size as the internal dimension of the reciever, sort of a shoe. Made with slots cut for the dimples and rails which could be installed before the bend around the shoe. It'd have alignment pins on the bottom and a lower plate with a square piece of stock attached that could be clamped in a vice to hold while the bending was being done with the hammer and wood method.

I don't think it's needs to be a solid piece of steel. Just a wedge shaped box with a couple of internal webs for strength and the reliefs down the side towards the narrow end

I think it'd be handy for we poor guys who don't have access, room or money for a press, or the need to be heavily tooled up to build just a few receivers. We'd exchange extra labor in the bending for a big savings tool wise. I'm also hoping it could be built for a bit cheaper than other jigs also....hoping

 

[sks_hunter]

here's how I do it... simple enought, yet plenty effective. I've even made stainless blanks for another build I'm gearing up to start on soon...
http://www.gunco.net/forums/showthread.php?t=1965
If you have any questions, lemme know.