20 Ton Shop Press Brake - JeepForum.com

 
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post #1 of 12 Old 02-28-2013, 09:46 AM Thread Starter
ckhanna71
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20 Ton Shop Press Brake

I finally upgraded to the 20ton shop press from Harbor Freight so I made a press brake for it.








Bent 3/8" to alittle less than 90deg, I need to take alittle more out of the springs to let it compress better


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post #2 of 12 Old 03-01-2013, 11:49 AM
Tomb Raider
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Strong work sir. Press is my next purchase.

I like to build stuff. Want to know what I build, you can google it
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post #3 of 12 Old 03-01-2013, 12:45 PM Thread Starter
ckhanna71
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Strong work sir. Press is my next purchase.
thanks, it's not something you typically use everyday but sure is nice to have around

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post #4 of 12 Old 03-12-2013, 07:26 AM
zboss86
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What size plates did you use and what would you change if you had to do it over?

Cleaning out the garage... check what I have for sale here:
http://midsouthjeeps.com/forum/index.php?/topic/20693-jeep-parts-for-saletradebumper-2-spacers-relocation-brackets/
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post #5 of 12 Old 03-12-2013, 10:48 PM
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that is nice!
I also second zboss86
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post #6 of 12 Old 03-13-2013, 06:24 AM Thread Starter
ckhanna71
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Originally Posted by zboss86 View Post
What size plates did you use and what would you change if you had to do it over?
I used a 3/4" x 8" x 22" plate for the bottom, and 1" x 4.5" x 18" for the press plate. I think I would use alittle bigger angle iron since when I bent the 3/8" flat steel you can see where it flattened out the sharpness of the press plate.

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post #7 of 12 Old 03-15-2013, 09:56 AM
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Originally Posted by ckhanna71

I used a 3/4" x 8" x 22" plate for the bottom, and 1" x 4.5" x 18" for the press plate. I think I would use alittle bigger angle iron since when I bent the 3/8" flat steel you can see where it flattened out the sharpness of the press plate.
It looks like you have a piece of angle welded to the 1" break. My suggestion would be to lose that and have the edge of the one inch plate either milled or torch cut a bevel on it. This will allow you to achieve the 90deg. without distorting the plate. Then instead of having the angle welded to the lower plate you could have a couple of changeable dies. Smaller and larger angle. Maybe a half pipe for a role. Our shop has a piraņa iron worker and is amazing. The idea you shared has already got my wheels turning for my own press at my house! Thanks.
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post #8 of 12 Old 03-15-2013, 01:31 PM Thread Starter
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It looks like you have a piece of angle welded to the 1" break. My suggestion would be to lose that and have the edge of the one inch plate either milled or torch cut a bevel on it. This will allow you to achieve the 90deg. without distorting the plate. Then instead of having the angle welded to the lower plate you could have a couple of changeable dies. Smaller and larger angle. Maybe a half pipe for a role. Our shop has a piraņa iron worker and is amazing. The idea you shared has already got my wheels turning for my own press at my house! Thanks.
Yeah I agree, I need to come up with alittle something different. I am not crazy with this setup and it needs to be refined

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post #9 of 12 Old 03-17-2013, 06:43 PM
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Yeah I agree, I need to come up with alittle something different. I am not crazy with this setup and it needs to be refined
Bulla nailed this one right on the head. The angle iron won't ever get you a true 90, but the bevel'ed plate will.
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post #10 of 12 Old 03-18-2013, 07:23 AM Thread Starter
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Bulla nailed this one right on the head. The angle iron won't ever get you a true 90, but the bevel'ed plate will.
I might be able to get a friend of mine who has a kid that does cnc machining to mill the end for me, good idea!

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post #11 of 12 Old 03-18-2013, 06:55 PM
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If you take two 90 deg angles and lay them face down right next to each other, you can slightly shim up the outside edges to get the inner "V" closer to 85deg.. the regular "air bending" die angle. Of course, it helps to have the upper punch with the same 85" angle..

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post #12 of 12 Old 03-19-2013, 07:18 AM Thread Starter
ckhanna71
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Originally Posted by BESRK View Post
If you take two 90 deg angles and lay them face down right next to each other, you can slightly shim up the outside edges to get the inner "V" closer to 85deg.. the regular "air bending" die angle. Of course, it helps to have the upper punch with the same 85" angle..
Oh I see, instead of laying them flat creating the matching 90deg, shim them to make a greater angle. Good thing you can change things up but I wish I would have asked these questions before I got a wild hair to make this thing

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