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Thread: Changing the component sizes of a Rivet jig

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    Gunco Regular rigore's Avatar
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    Default Changing the component sizes of a Rivet jig

    I have decided to build my own jig for pressing the two lower rivets on a Yugo underfolder. Below you will find a photo of what I want to build. The problem is the link I found for the plans has some of the photos with measurements missing and I know I have seen a blue print for this type of jig somewhere before but after searching the web for two plus hours last night I give up.
    My question is while what I have has some measurements, is there any reason why I can’t use a 1” ram and 1” ID tube to do this? I am sure I will have to also change the bolt used to make the arm since a ” bolt will be too big to use on the 1” ram. The reason is I have everything readily available to change it to 1” Any input is highly appreciated.
    I tried several times to upload just the pics but no luck! Here is the link:

    My plinker style AK rivot jig pics and plans - AR15.COM

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    No Hope For Me Coils's Avatar
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    So you spent several hours searching the web. Never thought to look here did 'ya?
    http://www.gunco.net/forums/f163/pli...rawings-19838/


    I don't see an issue using the the 1" and resizing things to match, a 1/2 bolt (or whatever) should work.
    "Government is not the solution to our problem, government is the problem" Ronald Reagan

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    Gunco Regular rigore's Avatar
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    Quote Originally Posted by Coils View Post
    So you spent several hours searching the web. Never thought to look here did 'ya?
    http://www.gunco.net/forums/f163/pli...rawings-19838/


    I don't see an issue using the the 1" and resizing things to match, a 1/2 bolt (or whatever) should work.
    Yes I did Sir but that is a different design, to a certain extent. I am going to get started using 1/2" plate a 1" ram and 1-1/4" ID tube. I am going to base everything else on the information from the link above. I will have to play with the bolt size that I will use since I am changing the ram from 1-1/2" to 1".

    Thanks Coils!

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    Redneck fatballs 20nickels's Avatar
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    Let us know how it goes. Interested in the bolt size you decide on.
    Ketchup is gross.

    WTB pre-enjoyed Hornady LNL progressive press.

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    Gunco Regular rigore's Avatar
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    Just went to pick up the 1/2" plate from the scrap yard, hell the lady said take it. "Its only .60 for two pounds of scrap". I am going to cut the slot in the 1" I tube tonight. I am going to shoot for 1/2" bolt. There is enough material there to with stand the pressure from the ram pressing down on it and still gives me enough to drill and tap the 5/16" set screw.

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    Gunco Regular rigore's Avatar
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    Went with a 1/2" bolt. I still need to trim the pin down to size. I am going to give it a whirl with a Yugo underfolder rear trunnion bottom rivets. I also figured out why most designs call for a 1-1/2" ram, if you are using anything above the 12ton press they have a 1-1/2" ram. I was at my buddies shop and he just purchased a 20ton press from HF and it had the 1-1/2" ram.
    Attached Images Attached Images

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    No Hope For Me Coils's Avatar
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    Looks good, keep us updated
    "Government is not the solution to our problem, government is the problem" Ronald Reagan

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    Redneck fatballs 20nickels's Avatar
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    Where do you put the weed in it?
    Ketchup is gross.

    WTB pre-enjoyed Hornady LNL progressive press.

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    Gunco Regular rigore's Avatar
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    Quote Originally Posted by 20nickels View Post
    Where do you put the weed in it?
    lol

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    Gunco Veteran Bolt2bounce's Avatar
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    I want to build my own short rivet crusher as well, but I'll need a lot of things I don't have.. ie.. large welder, milling machine etc.. I've got most of the steel I need..I've heard AK-builders short rivet jig some of the parts are not quite hard enough, and gunthing's is hard enough but the rivet crushing buttons are not inter-changable like curtis's is.. The bolt cutter work great for building functioning guns but they do not make the nice different head types I'm looking for.. nor are they easily to crush some of the harder to reach rivets like the underfolder rear insert rivets.. if you could put some weed in it, you sell a lot more of them....LOL.. B2B

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