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|    rec.crafts.metalworking    |    Metal working and metallurgy    |    215,319 messages    |
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|    Message 215,311 of 215,319    |
|    Bob La Londe to All    |
|    Steel Tube bender    |
|    23 Feb 26 13:46:11    |
      From: none@none.com99              Well as much as I would have liked to build one I bought one instead.       Its compact, doesn't have to be mounted to work, its cheap, its compact       for storage, and it has a long history of DIYers using it on The Tube of       U. Even the DIYers who state some other benders are superior do       acknowledge it works within its claimed range.              Which brings us to the first of its two major drawbacks.              1. It only bends a little more than 90 degrees. I think I recall some       users saying that it will bend up to 110 degrees if you reposition the       tube once after the first bend. This is a real drawback, because there       are a couple things I'd like to make that would look better with 180       degree bend instead of a welded joint, but my welding is getting better,       and I do own an angle grinder or two.              2. The other drawback is its dead slow. It uses a manual 8 ton       hydraulic jack to operate. One of the most popular upgrades is to swap       out the 8 ton manual jack for a 12 ton air over hydraulic jack. Its a       finicky upgrade, and older models (I ordered a newer model) need the       frame cut and welded to fit. That's a definite upgrade, and if I can       get the unit fixed on on my 12 ton press I'll use that jack. I finally       swapped over to an air over jack on my 20 ton press, and I doubt the 12       ton will ever get used again. If for some reason its the best tool for       the job or I need to setup multiple presses I still have the original 12       ton manual jack.              I really can't beat the price. Its $399 (01/23/2026) and includes one       standard bending die of choice. Of course I bought the option that       comes with five (5) bending dies.              There is still one problem, but its self imposed, and its part of why I       chose to buy one at this time. The kids (young men and women) on the       BAJA SAE engineering team are having issues with a bender they were       loaned by a local fabrication shop. The die size they need didn't come       with it, and a die to fit that bender costs the same or more than this       whole machine. The problem. This manufacturer doesn't make exactly the       right size die. It comes with a die the right size for the tube, but       the kids did their work around a 6 inch bending radius, and the die that       comes with the machine comes with a 5 inch bending radius. There is       about 20% higher strain when bending to 5 inch radius. I invited them       over to spend an afternoon making a die just right for their application.              There are guys who have made limited production plastic dies using 3D       printed parts sandwiched between steel plates. I am 100% sure I can       make aluminum "cores" to sandwich between steel plates to do the same       job much stronger in a fraction of the time of 3D printing. 6061 would       probably last well enough for atleast a few dozen bends, and 7075 would       probably last long enough for hundreds if not thousands of bends. I       have both on the shelf, but the 7075 WAS planned for "other" projects.              I also have some A356 I could cast, but I think making a pattern would       take quite a bit longer than just machining a finished part from       wrought/extruded bar or plate.              If you scrolled through all of that just wanting to know what the heck I       ordered, I ordered the Affordable Bender with 5 bending dies.              https://www.yumabassman.com/wp-content/uploads/2026/02/Affordable-Bender.webp              https://www.yumabassman.com/wp-content/uploads/2026/02/Affordabl       -Bender-Jack.webp                     --       Bob La Londe       CNC Molds N Stuff              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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