if you use this jig add 2 layers of duct tape to the 3/4 inch bar, the bolt is pretty tight I had to hit it with the belt sander pretty heavily to get it to slide and it still need a bit more taken off.
I have come across a problem with the hammer though it is hitting the recoil spring I am guessing I will take some off the otherside of the hammer pivot and move it over away from the spring and then grind some more if need be,
This is a work in progress:confused:
I measured my PPS-43 bolt diameter at 1.134 inch. The mandrel should be that size diameter and the residual spring back would provide the needed clearance. Closest thing I can find is 1.124 inch diameter solid bar stock at the steel yard. A 4130 CMS flat will have lots of spring back so this mandrel should do the job.
I'm planning to use my adjustable AK jig set for this spec (ie 1.125 + 0.075 + 0.075). That 0.075 inch is about 13 guage sheet steel for my PPS-43. Those nice Polish kits use rather thick sheet metal construction.
The 3/4 inch schedule 40 steel pipe (home depot, lowes) is pretty close I just needed to shim it a little bit, from some gratuitious belt sandind the bolt works as is in the receiver, making it a little bigger would save this step though.
My goal on this is to do it as cheap as possible and with as many local or salvaged parts as i can
Well said bubba, cheep and scrap are a good thing. The dia. Of the rod is not that big of a deal to me, I'm making my boldt on this one, I just need a print on the butt stock side plats. Muttman
Some minor progress had to further modify the trigger group to move hammer over to clear recoil spring and adjust sear travel but I think I am done now
simple locking bar for upper
Now introducing the Ghetto trunnion http://i21.photobucket.com/albums/b2...r/DSC01326.jpg
cleaned up the welds for some motivation
Looking good. We are just starting the same build and looking for ideas. The template helps alot. Your bending jig looks like it does a great job.
Thanks for posting all the pics.
This build is going slow, but not dead, I drilled bolt hopefully more progress on the bargain basement kp-44 shortly
i like that jig, Might have to try this.
Last picture looks a little like my work bench area. AMD-65 partially done, and the same harbor freight organizer bins scattered about.
Staying tuned for future episodes