All MetalShaping

Go Back   All MetalShaping > General Metal Shaping Discussion > Basic questions and answers
  Today's Posts Posts for Last 7 Days Posts for Last 14 Days  

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 02-06-2022, 08:08 AM
sfm1951 sfm1951 is offline
Member
 
Join Date: Mar 2010
Location: Blackberry, Minnesota 55744
Posts: 96
Default Radius brake

Does anyone have a radius brake, or made one? If so could you PM me a pic of the the adjustment bolts for raising and lowering of the different size radius bars and the follow tube? I want to make one similar to a radius brake sold by trick tools. I can't afford the price of a new one . Thanks in advance, Steve
__________________
Steve

never-ever kick a fresh turd on a hot day!
Reply With Quote
  #2  
Old 02-07-2022, 03:11 AM
metal manny metal manny is offline
Member
 
Join Date: Aug 2011
Location: Johannesburg, South Africa
Posts: 463
Default

Hi Steve. If you need to make radius bends on the smaller side (2" and less) you can use a conventional brake with a tube clamped in its fingers to bend your sheet around its radius to create the shape. Ron Fournier's 'Sheet Metal Handbook', page 29 details this process clearly. I've used this method on occasion to great effect.
If you prefer to roll larger radii, (repeatedly and accurately) like the one shown in the trick tools video, then you will definitely need to make a machine dedicated to this purpose. I don't think is a particularly difficult build either. For the adjusters on the two rolls, you could consider using off the shelf self-aligning flange units like the one I've referenced as these provide both the bearing and the sliding adjustment in one ready made, inexpensive part - although the inner bending roll won't need to rotate during the bend.
Anyways, I'm sure you'll get plenty of creative solutions to consider from other users here, but this hopefully gets the thinking process started on your way to creating beuatiful parts...

adjustable bearing.JPG
__________________
Manny

Remember that the best of men, are only men at best.

Last edited by galooph; 02-07-2022 at 03:17 AM.
Reply With Quote
  #3  
Old 02-07-2022, 10:34 AM
sfm1951 sfm1951 is offline
Member
 
Join Date: Mar 2010
Location: Blackberry, Minnesota 55744
Posts: 96
Default Radius brake

Manny, I've used the brake for smaller radius parts. I'm looking to do a full belly pan for a Track T. So that's why I need a bigger radius bend. I plan on making the radius that I need first and others as I need them. That way if I never need them I can make them, and spread the build cost over time. Do you have a link or info where to look for the part you have listed? I 'll try to find info, but if I can't could you send the info. Thanks for your reply. Steve
__________________
Steve

never-ever kick a fresh turd on a hot day!
Reply With Quote
  #4  
Old 02-07-2022, 12:19 PM
norson norson is offline
Member
 
Join Date: Nov 2010
Location: Portland, Or.
Posts: 389
Default

This is the way I did it.

4244A706-0538-41EE-8CE7-9F901A6218F0_1_105_c.jpeg

50550208-5E81-40D9-8172-1EE742B9E6C9_1_105_c.jpeg
__________________
Norm Henderson

Last edited by Steve Hamilton; 02-07-2022 at 01:13 PM.
Reply With Quote
  #5  
Old 02-07-2022, 10:52 PM
pato1 pato1 is offline
Member
 
Join Date: Jul 2021
Location: California
Posts: 10
Default

how far apart were the two large rings and what gage metal?? thanks-that is great!!!--pat
__________________
Pat
Reply With Quote
  #6  
Old 02-08-2022, 03:20 AM
metal manny metal manny is offline
Member
 
Join Date: Aug 2011
Location: Johannesburg, South Africa
Posts: 463
Default

Quote:
Originally Posted by sfm1951 View Post
Manny, I've used the brake for smaller radius parts. I'm looking to do a full belly pan for a Track T. So that's why I need a bigger radius bend. I plan on making the radius that I need first and others as I need them. That way if I never need them I can make them, and spread the build cost over time. Do you have a link or info where to look for the part you have listed? I 'll try to find info, but if I can't could you send the info. Thanks for your reply. Steve

Steve, that is called a take up bearing. You'll get them at any decent bearing supplier. They come in a staggering array of sizes (metric and imperial) and as previously mentioned, are self-aligning due to the spherical bearing insert. Attached pic will show how they are set up.

take up bearing.JPG
__________________
Manny

Remember that the best of men, are only men at best.

Last edited by galooph; 02-08-2022 at 03:25 AM.
Reply With Quote
  #7  
Old 02-08-2022, 07:55 AM
sfm1951 sfm1951 is offline
Member
 
Join Date: Mar 2010
Location: Blackberry, Minnesota 55744
Posts: 96
Default Bearing

Thank you Sir. That gives me another thing to check out, they look like that will solve the problem of up and down adjustments
__________________
Steve

never-ever kick a fresh turd on a hot day!
Reply With Quote
  #8  
Old 02-08-2022, 02:33 PM
norson norson is offline
Member
 
Join Date: Nov 2010
Location: Portland, Or.
Posts: 389
Default

Quote:
Originally Posted by pato1 View Post
how far apart were the two large rings and what gage metal?? thanks-that is great!!!--pat
In that picture the rings are 3 feet?? apart. The table is 4 feet wide. I used the rings because that was what I had to get the bend I wanted and steel because that what I had. You could use that heavy fiber glass. sewer pipe or even the power pole on the corner. You just need to figure out how to apply even pressure across the length of the piece your'e bending (2x4?). Maybe ratchet straps to help. The material in the picture was 18 gauge crs and I was making the cab corner for a Willys pickup.
__________________
Norm Henderson

Last edited by norson; 02-08-2022 at 02:38 PM.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -5. The time now is 03:03 AM.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2022, vBulletin Solutions Inc.