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This was an interesting bending project I just completed for another shop. They gave me a masonite template to go by and I quoted them for the bending. Here is the shape:Looks pretty easy, but I found out the hard part after accepting the project:They are putting it in a convertible and want a large oval tube appearance. So, they needed 2 IDENTICAL hoops to weld together and will weld sheetmetal between them. It's amazing how a fraction of a degree on a bend makes a difference when you are trying to make an exact copy...Jason
Reply:Panozeng Nice job,What was the wall thickness? I have done quite a few jobs like that and it can be frustrating getting the same bend over and over.SimonOur websitehttp://members.optusnet.com.au/~abba/index.html
Reply:Hey panozeng,You work with those fellas up north of Atlanta near Chateau Elan? I have been admiring those cars since they came out. Very nicely styled. Y'all don't give an educator discount do ya?Smithboy...if it ain't broke, you ain't tryin'.
Reply:It's 1.75 OD x .095 wall DOM bent on a 5" centerline radius using RMD Bender dies on my own bender.Yep, I have been working there for over 9 years now.
Reply:Pretty darn amazing. I can't imagine matching the second one that close to the first.Good work.
Reply:Those of us that have done some bending do indeed know how hard that is. Very nice job!!! Had to heat the second one a little? Also, I'm sure there is some interest in your bender. Can we get some pics of that? Again, a really nice job!
Reply:Gee - I thought I'd shrunk that pic small enough to hide the heat marks! Yeah, I ended up tweaking a couple of the bends when I was done to get them dead on. If I were the one that was going to do the rest of the fabrication it wouldn't have been necessary - just a little clamping - but the guys that are doing the rest don't do a lot of fab work.My bender is a chain pull design that has a spindle design to easily use RMD Bender dies. I can also use JD2, Protools, etc dies with a little fiddling, but they aren't nearly as nice as RMD's. Here is a pic with an RMD die set:And another with a Pines #2 bend die on it:Thank you for the compliments!Jason
Reply:good ole' panoz...went to school over at lanier tech for a good while when Bud Hughs was giving the Panoz cars the run through in the shop...man those little white bastards are fast even though the cobra motor ain't my first choice for forward motion!...neat cars and the roadster is the shizzle...dno't really see them work on 'em too much anymore though?...hmmm...you guys do carbon layups too right?
Reply:Hey Panozeng, you going to go for a patent on the switch modification/mounting hardware??
Reply:Yeah - I was thinking about it. You can't see it, but in the first picture there is a car battery providing power for the hydraulic control solenoids. In the second I have a power supply handling that task. I got all the hydraulics except for the actual cylinder in one lot from Ebay shipped for under $150. It included the electric solenoid valves - but they are 12v.I actually have not had time to finish the bender! I built it in about a week, and a hot project at work had me using it as soon as I got it bending. It has been busy ever since, and I have taken the time to finish the controls and a lot of other details. Oh well... It's earning its keep already!
Reply:Panozeng nice job, neat looking bender you ought to start a thread just on the bender.More pics and explain a little more about it. Jim
Reply:That is a kick a$s bender. I would defiantly like to see some more detailed pics etc. What is it patterned after or is it a one off. Very nice work.
Reply:I'm interested in the bender as well. How does the chain-pull design work?-Heath
Reply:that is a sweet bender, I would like one
Reply:Real sweet bender. If you have plans, I would like ot see them. Just what the doctor ordered!!
Reply:I don't really have any formal plans, just modelled it in 3d cad and built it - and not all of it was modelled... One of these days I hope to get back to work on it and finish it; specially the controls!Here are a couple of pics showing how the chain pull works. Biggest problem is coming up with a spring to return the spindle as the cylinder retracts. I have a couple of heavy clocksprings under the spindle, but they aren't strong enough when I have a big die on there. My biggest is for 1.75od tube on an 8"clr - it's a block of steel 16" dia x 4.5" thick.
Reply:Very nice work. I'm wondering if there's some clever way to design a hydraulic return on a chain pull.-Heath
Reply:Thanks! I wish I had thought the return system through before I made the spindle. If I had saved just a 1/4" wide area for a cable to wrap around it the opposite direction I could have connected it to the cylinder with a couple of pulleys and used that as a return. Right now I don't really have enough room to do that. I'll take another look at it again in the future - it's been too busy bending lately to take it back apart!
Reply:Originally Posted by jrocPanozeng nice job, neat looking bender you ought to start a thread just on the bender.More pics and explain a little more about it. Jim
Reply:Presumably, that's an ansi roller chain? What's the rating on it?I think I have an idea for a bender that can do 180 degrees or better, is chain driven and has hydraulic return. I'll have to sketch something up.-Heath |
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发表于 2021-9-1 00:39:43