Joined: October 08 2011 Location: United States Posts: 38
Posted: December 15 2011 at 7:38pm | IP Logged
Has anyone here done this? I've done some searching but I have not found much information about this.
Has anyone ever seen a jig for bending an UZI flat? If so, could you post some photos?
Does anyone have any suggestions for making a jig?
I'm thinking that bending the trunnion area will be the difficult part.
Thanks
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weaponeer
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Posted: December 15 2011 at 11:28pm | IP Logged
I don't see any problem bending the flats.
far a jig, I guess a square steel bar slightly larger than the bolt would be secured in the center of the flat (and longer than the flat)
Now a lot of people were bending G3 flats with screw drivers, so I would think bending this flat against the bar should be pretty easy, especially once the bend was started.
one G3 jig had two hinges and a plate on each side, and two bolts were used to press the receiver into a recess that bent the side up.
anything is possible...
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solidstate
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Posted: December 16 2011 at 5:30pm | IP Logged
What about forming the trunnion area? I think this will be more difficult.
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weaponeer
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Posted: December 16 2011 at 9:12pm | IP Logged
solidstate wrote:
What about forming the trunnion area? I think this will be more difficult.
personally I would just cut, and weld to the demilled receiver and not worry about it.
x 1
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Mech warrior
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Posted: December 16 2011 at 11:20pm | IP Logged
It would also probably be possible to use a torch, some round bar, and a hammer to make it?
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weaponeer
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Posted: December 17 2011 at 12:35pm | IP Logged
Mech warrior wrote:
It would also probably be possible to use a torch, some round bar, and a hammer to make it?
that could work, especially if you used body work hammers
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collectorman
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Posted: January 12 2012 at 7:38pm | IP Logged
Black Market ARms makes a bending jig out of a break bar with a handle. It might work perfectly for this.
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Mech warrior
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Posted: January 12 2012 at 8:48pm | IP Logged
collectorman wrote: Black Market ARms makes a bending jig out of a break bar with a handle. It might work perfectly for this.
Sweet! If it doesn't, we will make our own!
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collectorman
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Posted: January 16 2012 at 7:59am | IP Logged
Also, questions about correct formation. I think if trunnion and bolt, or, at least trunnion is welded to center of flat before bending, it can work as a mandrel to form that round area. Just my two cents.
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Mech warrior
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Posted: January 16 2012 at 10:37pm | IP Logged
That sounds plausable, but i don't know if i would want to do that. The weld might deform the metal upon bending. plus, if it is welded in the wrong spot and needs to be cut for re-positioning it would be harder to do after it is bent around it. I am thinkin round bar if necessary. I was lookin at the flats and it seems to me that the holes on them could be used to hold them in a jig for bending similar to the ak.
Also,i have had very little bending experience, but i have found, bending around the thing u want to fit always comes out too big. In order to fit tight it would have to be slightly smaller due to spring back. I don't know. But i bet we can figure out something!
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Mech warrior
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Posted: January 16 2012 at 10:57pm | IP Logged
Another thought on this, if need be we can drill a few extra holes along the edges for alignment on a bending jig, then after it is bent, weld them back up.
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collectorman
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Posted: January 17 2012 at 7:17pm | IP Logged
Makes good sense. With this Black Market Arms jig, the width would have to be cut down as it is normally used for ak flats. I'm not sure of the difference in width. Check out this link to see this jig. http://www.gunco.net/forums/f163/poor-mans-jig-revisited-286 13/
That makes four cents
I REENTERED THE LINK. THERE ARE A COUPLE OF VARIATIONS> THE SIMPLEST ONE IS TWO ANGLE IRONS WITH FOURS SETS OF NUTS FOR WIDTH ADJUSTMENTS> NO BOTTOM SO HEIGHT CAN BE WHATEVER IS NEEDED>
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Mech warrior
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Posted: January 17 2012 at 10:45pm | IP Logged
I couldn't see the link. I went to gunco and couldn't find it. Maybe i am doin something wrong. Copy a pic and post it if you can.
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I found it luckily...........if this is the one you are talking about i think it would work great. Heck, i have most of that layin around.
x 1
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collectorman
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Posted: January 19 2012 at 5:39pm | IP Logged
Great! It doesn't take much, just the right width. This is where I am unsure. Taking in to account the width of the flat sides and the bolt combined, how much wider should the overall width between the angle irons be? 2 millimeters? Also, the bar that sits at the base of the flat should be as wide as the bolt? If not, how much wider? Of course enough width is needed to allow the bolt easy passage back and forth without too much play. Then, the holes in the flat could be used to secure it to the bar. With just a couple of threaded holes in the bar, it should secure and center easily. Then bingo! it's done! I love this!
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Mech warrior
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Posted: January 19 2012 at 10:08pm | IP Logged
I would think as wide as the bolt......maybe 1 millimeter wider. I could take some measurements from a norinco i own if they are needed. I could use feeler gauges to see how much clearence it has between the bolt an dreciever. I do think that type of jig will be easy to use as well a make for cheap! It should work great.
__________________ Measure, think about it, measure again, think about it some more, measure again, then cut......."Oh S***!!!!"
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collectorman
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Posted: January 19 2012 at 10:38pm | IP Logged
As discussed previously, will welding a demilled trunnion section onto a prepared flat maintain strength enough for the bolt to bang back and forth when firing without breaking open?
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solidstate
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Posted: February 03 2012 at 10:18pm | IP Logged
collectorman wrote:
As discussed previously, will welding a demilled trunnion section onto a prepared flat maintain strength enough for the bolt to bang back and forth when firing without breaking open?
Absolutely. This has been done many, many times. DAGS and you will find many examples.
Of course you have to do the welding correctly.
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lurch
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Posted: February 04 2012 at 11:58pm | IP Logged
Hmm... I'm sure everyone that wants a flat would just love for someone to build a proper jig to bend these, I'd go even farther to say that people would be willing to pay some to use it. So if someone were to take the time to spec out and build a durable jig then rent it out for $10 or even $5 per person they would be well compensated for their time and materials just going off of the number of people who want the flats. I don't have the skill but I'm sure someone does.
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