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CNC Pipe Bender
« on: January 10, 2009, 05:11:33 AM »
Recently finished a pipe bending machine's control. See it in action at http://www.youtube.com/watch?v=uFkmAgNX1Hg . Used AC servo motors for pipe feed and rotation axes, encoder feedback for the bending axis and stepper driven positioning of the bending angle setup switch. Designed the screens with Jasc Paint Shop Pro 9 and Screen4.

Zafar

Offline chl

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Re: CNC Pipe Bender
« Reply #1 on: January 10, 2009, 06:31:56 AM »
Very nice .....good job

Christer
Re: CNC Pipe Bender
« Reply #2 on: January 10, 2009, 09:23:06 AM »
Thanks for the compliment Christer  ;D

Offline Hood

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Re: CNC Pipe Bender
« Reply #3 on: January 10, 2009, 10:15:48 AM »
Saw it a while back when you first put the vid on the youtube Mach page, very impressive :)

Hood

Offline RICH

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Re: CNC Pipe Bender
« Reply #4 on: January 10, 2009, 11:07:25 AM »
Interesting and now all you need is the different output from the pipe or tube iso's to agree
with on your software end.

Back over 40 years ago major pipe fab shops would automaticaly select appropriate material from storage, have the material conveyed to the machine, index, bend, add additional items like back up flanges, lap the ends of the pipe
or tube, etc. You had to see the "key punched cut cards" to appriciate. Additionaly orbital welding machines woud weld in sections. To make all work, the sketches had to take into consideration the fabrication.

Still neat posting and just thought i would throw out some history.
RICH
Re: CNC Pipe Bender
« Reply #5 on: January 11, 2009, 05:32:52 AM »
Rich,

Nice to hear how they used to do it 40 years ago. I was learning to walk at that time :)

Zafar
Re: CNC Pipe Bender
« Reply #6 on: January 11, 2009, 09:16:40 AM »
Hi Zafar,
  I really enjoyed your video. Just wondering....do you have a CAM program especially for benders that uses a dxf like machining, or do you have to write the code manually ?
  I can only imagine the pile of scrap I would have before I got the final part bent correctly.
Thanks for your time and vid,
RC

Offline RICH

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Re: CNC Pipe Bender
« Reply #7 on: January 11, 2009, 10:25:15 AM »
RC,
Zafar is very frugal.  :) He's only shows the good bending  ;) all the rest are sold as band instruments   ::) to
pre-schoolers.  :D Carefull Zafar, on what you disclose,  :-X Rc and another moderator  >:D are trying to perfect
bending gun barrels  ;D that would shoot around corners.  ??? Word out on the street  8)  is that their scrap is
being used as re-bar for building foundations and it dosn't neet code requirements.  >:(

Wont say anymore   :-[ and should have posted this sort of thing a long tiime ago.
RICH
 

Offline Tweakie.CNC

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Re: CNC Pipe Bender
« Reply #8 on: January 11, 2009, 11:04:00 AM »
Brilliant machine and expert programing, I just pity the poor old electrician trying to get  his wires down that conduit.

Tweakie.
Success consists of going from failure to failure without loss of enthusiasm.  Winston Churchill.
Re: CNC Pipe Bender
« Reply #9 on: January 12, 2009, 01:40:17 AM »
Programming is done manually here from the customer's drawings. Use of macros with mach3 simplified the programming a lot. We tried each bend on smaller pipes before switching to the final one. The scrap wasn't much and after perfecting the program they are producing 700 pipes a day with manual loading and unloading.

Zafar

Hi Zafar,
  I really enjoyed your video. Just wondering....do you have a CAM program especially for benders that uses a dxf like machining, or do you have to write the code manually ?
  I can only imagine the pile of scrap I would have before I got the final part bent correctly.
Thanks for your time and vid,
RC