Go Back OFN Forums > Shop and Tool Talk > Benders and Bending

Benders and Bending Which bender is best? How do you use a bender? How do you calculate bends? Everything Bender related...


Benders and Bending Which bender is best? How do you use a bender? How do you calculate bends? Everything Bender related...

Reply
 
Thread Tools
  #1  
Old 10-29-2016, 01:52 AM
R.DesJardin's Avatar
R.DesJardin R.DesJardin is offline
Designer & Builder
 
Join Date: Jul 2009
Location: Clarkston, WA
Posts: 389
Bend Tech!!!! Yes!!!

So I haven't used BT too much but I needed a tube bent to fit my crazy idea for a cage bottom. 6 bends. It fit perfectly. Make an amateur look like a pro.
__________________
Need, Design, Build, Use, repeat........
http://www.radesignsproducts.com/
Reply With Quote
  #2  
Old 10-29-2016, 10:50 PM
Bray D's Avatar
Bray D Bray D is offline
Fabricator
 
Join Date: Jul 2015
Location: IL
Posts: 98
Nicely done!
Reply With Quote
  #3  
Old 10-30-2016, 09:53 PM
Rokcrler's Avatar
Rokcrler Rokcrler is offline
Master Fabricator
 
Join Date: May 2006
Location: Hsv. Ala
Posts: 701
Thats awesome Rory...them back to back bends are nice... what CLR dies?
Reply With Quote
  #4  
Old 10-30-2016, 10:06 PM
CarterKraft's Avatar
CarterKraft CarterKraft is offline
Master Fabricator
 
Join Date: Oct 2009
Location: DFW
Posts: 902
For sure nice job, I tell people it's too easy to design something you can't even build.
Reply With Quote
  #5  
Old 10-30-2016, 10:22 PM
R.DesJardin's Avatar
R.DesJardin R.DesJardin is offline
Designer & Builder
 
Join Date: Jul 2009
Location: Clarkston, WA
Posts: 389
Quote:
Originally Posted by Rokcrler View Post
Thats awesome Rory...them back to back bends are nice... what CLR dies?
1.75 X 5.5 CLR, it was as close as possible with that die.
__________________
Need, Design, Build, Use, repeat........
http://www.radesignsproducts.com/
Reply With Quote
  #6  
Old 10-31-2016, 02:10 PM
TheBandit's Avatar
TheBandit TheBandit is offline
Instagram @chevyhotrodder
 
Join Date: Jan 2006
Location: Ventura County CA
Posts: 4,361
How many bends and planes do you have on that one?
__________________
Clint

Sometimes you win. Sometimes you learn.
Reply With Quote
  #7  
Old 10-31-2016, 04:33 PM
R.DesJardin's Avatar
R.DesJardin R.DesJardin is offline
Designer & Builder
 
Join Date: Jul 2009
Location: Clarkston, WA
Posts: 389
Quote:
Originally Posted by TheBandit View Post
How many bends and planes do you have on that one?
6 bends, and I guess really only two planes. I should have kick the last one back at a 30 and down so I could claim 3 planes. LOL. I have to make a mirrored copy for the left side next. Then in my opinion the hard tubes are next, the cage.
__________________
Need, Design, Build, Use, repeat........
http://www.radesignsproducts.com/
Reply With Quote
  #8  
Old 12-20-2016, 11:07 PM
ducas99's Avatar
ducas99 ducas99 is offline
Master Fabricator
 
Join Date: Sep 2013
Posts: 106
Is there any video out there of guys using bend tech in a shop ie taking the measurements from the car imputing to bend tech taking to bender and producing the part be interested in watching a few to see how the program works Iv watched a few bend tech vids but it's only just of the computer program I'd like to see how guys measure plot and plan for multiple plane bends and notches
Reply With Quote
  #9  
Old 12-21-2016, 12:11 AM
R.DesJardin's Avatar
R.DesJardin R.DesJardin is offline
Designer & Builder
 
Join Date: Jul 2009
Location: Clarkston, WA
Posts: 389
Quote:
Originally Posted by ducas99 View Post
Is there any video out there of guys using bend tech in a shop ie taking the measurements from the car imputing to bend tech taking to bender and producing the part be interested in watching a few to see how the program works Iv watched a few bend tech vids but it's only just of the computer program I'd like to see how guys measure plot and plan for multiple plane bends and notches
Cool idea. I just measured key locations, made a sketch, then added the data to BT. I have most of the cage done, when I do the bumpers I'll see what I can do. But that's not in the near future.
__________________
Need, Design, Build, Use, repeat........
http://www.radesignsproducts.com/
Reply With Quote
  #10  
Old 12-21-2016, 09:45 AM
ducas99's Avatar
ducas99 ducas99 is offline
Master Fabricator
 
Join Date: Sep 2013
Posts: 106
Will bend tech tell you if a bend is not possible, ie if your bends were to close together does it know? Or If you were doing a bend right at end of a tube does it know how much tube is needed to go through the backing block?
Reply With Quote
  #11  
Old 12-21-2016, 12:33 PM
R.DesJardin's Avatar
R.DesJardin R.DesJardin is offline
Designer & Builder
 
Join Date: Jul 2009
Location: Clarkston, WA
Posts: 389
Quote:
Originally Posted by ducas99 View Post
Will bend tech tell you if a bend is not possible, ie if your bends were to close together does it know? Or If you were doing a bend right at end of a tube does it know how much tube is needed to go through the backing block?
From my experience no it does not recognize bends too close together, as I could just barely get the bends I did but it worked. The issue was the clamp fitting the tube since the tube was arcing away from the die. With the length I had a tube come out just about too short because of not enough material on the end. Bend and learn. But I'm a newbie, Cris might be able to answer this better.
I am like most customers I've dealt with, I wanna run the machine and I want it now. Who has time for videos or reading? Yes I've got stuck and reviewed the Help topics and found the answers. Read the instructions last if there is no way out, right?
__________________
Need, Design, Build, Use, repeat........
http://www.radesignsproducts.com/
Reply With Quote
  #12  
Old 12-21-2016, 03:35 PM
CarterKraft's Avatar
CarterKraft CarterKraft is offline
Master Fabricator
 
Join Date: Oct 2009
Location: DFW
Posts: 902
I think it will show you a problem exists, if you are smart enough to catch it. There are provisions for changing bend angle and direction also. Say if you have two bends close together in the middle then you can bend from each end of the tube towards the middle.

Look in the simulations.

Edit: In 7x go to custom part then "Part Details" then "Bend Order" in that window you have the 5 different options for bend order. Sometimes you can solve the interference by bending from the opposite direction. It will take a little goofing around to see if you are clear or not though. The software does have the "manufacturing ability" feature available in the higher versions starting with SE.

Last edited by CarterKraft; 12-21-2016 at 03:47 PM.
Reply With Quote
  #13  
Old 12-22-2016, 10:23 AM
fabcam's Avatar
fabcam fabcam is offline
Site Admin
 
Join Date: Aug 2004
Location: MN
Posts: 4,567
Quote:
Originally Posted by ducas99 View Post
Will bend tech tell you if a bend is not possible, ie if your bends were to close together does it know? Or If you were doing a bend right at end of a tube does it know how much tube is needed to go through the backing block?
Bend-Tech SE has this ability. You put into the Die library with each die the min distance between bends and the min distance needed on each end.

.
__________________
The Designers of Bend-Tech Products
www.Bend-Tech.com
Bend-Tech Dragon web site:
http://www.BendTechDragon.com

Cris Merry
Phone: 651-257-8715
Cris@bend-tech.com

Reply With Quote
  #14  
Old 12-27-2016, 09:36 AM
ducas99's Avatar
ducas99 ducas99 is offline
Master Fabricator
 
Join Date: Sep 2013
Posts: 106
Does your spring back increase as your bend angle increases? Ie 15deg bend to 20 deg (5deg Spring back ) but a 90deg bend go to 98 deg ( 8 deg spring back) ?
Reply With Quote
  #15  
Old 12-27-2016, 11:17 AM
fabcam's Avatar
fabcam fabcam is offline
Site Admin
 
Join Date: Aug 2004
Location: MN
Posts: 4,567
Quote:
Originally Posted by ducas99 View Post
Does your spring back increase as your bend angle increases? Ie 15deg bend to 20 deg (5deg Spring back ) but a 90deg bend go to 98 deg ( 8 deg spring back) ?
I have seen it both ways. Depends on bender and material. I haven't tracked to find the absolute equation.

FYI Bend-Tech will allow you to do either.

.
__________________
The Designers of Bend-Tech Products
www.Bend-Tech.com
Bend-Tech Dragon web site:
http://www.BendTechDragon.com

Cris Merry
Phone: 651-257-8715
Cris@bend-tech.com

Reply With Quote
  #16  
Old 07-07-2017, 10:37 AM
NMasterson's Avatar
NMasterson NMasterson is offline
Junior Fabricator
 
Join Date: Jul 2017
Location: NJ
Posts: 1
Quote:
Originally Posted by ducas99 View Post
Does your spring back increase as your bend angle increases? Ie 15deg bend to 20 deg (5deg Spring back ) but a 90deg bend go to 98 deg ( 8 deg spring back) ?
Yes. Spring back increases linearly with increasing angle of bend.
Reply With Quote
  #17  
Old 07-07-2017, 02:41 PM
Punk Steel's Avatar
Punk Steel Punk Steel is offline
Fabricator
 
Join Date: Jul 2017
Location: across the pond on the jewel of the Atlantic.
Posts: 96
Quote:
Originally Posted by ducas99 View Post
Is there any video out there of guys using bend tech in a shop ie taking the measurements from the car imputing to bend tech taking to bender and producing the part be interested in watching a few to see how the program works Iv watched a few bend tech vids but it's only just of the computer program I'd like to see how guys measure plot and plan for multiple plane bends and notches
we have used BT pro every day for the last 5 years or so (as well as other add ons)
Interesting what you asked there, as we do a lot of roll cages for track day cars (I assume you have a US equivalent of guys that just want a cage for a car to zoom around a track in that isnt an actual race series or "racing")
Most are one offs, some strange cars from classics to modern stuff, so every build is a start from the beginning kind of thing. I never build an assembly in BT for that, but start generally with the main hoop behind the driver, measuring manually with a wooden fold out ruler which gives both dimensions, and if I measure the angle I fold the ruler out at the corners, we also have the angledata. We then make that part, measure off that for the next, BT it in the computer, and on like that until the job is done, piece by piece. I suppose most people do it that way if its something you do for a living as it is really easy to make one mistake that impacts on all the other bends - or maybe I am just not clever enough to do an assembly or a one off inside a vehicle body

Last edited by Punk Steel; 07-07-2017 at 02:42 PM. Reason: error
Reply With Quote
  #18  
Old 07-07-2017, 02:48 PM
Punk Steel's Avatar
Punk Steel Punk Steel is offline
Fabricator
 
Join Date: Jul 2017
Location: across the pond on the jewel of the Atlantic.
Posts: 96
Quote:
Originally Posted by ducas99 View Post
Does your spring back increase as your bend angle increases? Ie 15deg bend to 20 deg (5deg Spring back ) but a 90deg bend go to 98 deg ( 8 deg spring back) ?
this is another black art that seems different for everybody, but we seem to get 2 degrees springback of just about any tube we bend - if it is bent beyond 10 degrees. This has always been the case for us for almost a decade, but that is our machines (JMR based but heavily modified), others may vary of course so its suck it ans see, then input the data into BT to compensate ( we dont for a silly reason, our main bender with its hydraulic mod is quite fast, so it helps us not overrun the anlge, we get there, then flick the motor a couple of times to take up the last two degrees...
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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 Off

Forum Jump


All times are GMT -4. The time now is 07:21 AM.

Powered by vBulletin® Version 3.8.0
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Template-Modifications by TMS
Copyright 2012, Offroad Fabrication Network