equipment

Hossfeld benders

Rob Sigafoos — Mon, 26 May 2008 11:25:46 -0500

I am thinking of purchasing a Hossfeld and would appreciate some input from those of you that use them frequently. Anyone have any thoughts regarding models, dies, manual vs. hydraulic, etc.?
Rob

motorized pedestal ring and band roller

eligius1427 — Mon, 03 Dec 2007 11:58:21 -0600

I've been looking for plans for a powered 3-roll bender to no avail and decided to try to build one myself. The capacity is a little more limited then I wanted, but it was economical and easy to build out of a Proline pedestal ring and band roller which you can get on Ebay for about $90. All together I think I spent about $250, but all of the parts were new. I used a 250volt AC geared motor from Supluscenter.com($80). It is 1/6HP and is continuous use with 900in/lb of torque(intermittent with 1100in/lbs) and has 8.4RPM. The speed of the motor with the torque needed is the tough part. I wanted the roller on the bender to spin at about 15RPM which translates roughly to about 2.5in of material per second. In order for me to achieve that with this motor I had to put a bigger pulley on the motor and a smaller pulley on the roller. I used a belt and pulley system instead of chain and sprocket. The belts will slip if the pressure is too tight on the rolls where as the chain stopped the motor. This might be solved by using a motor with more torque(which I would probably try to find next time 1500in/lb at least). I had to reinstall the old handle so that when the resistance on the rolls was too much I could assist it, but it usually took very little effort. I used a great website to figure out the pulleys needed to convert the RPM from the motor to the RPM I needed on the rolls. Had I had more RPMs on the motor I probably could have gotten a little more torque with gearing. The capacity of the ring roller is 3/8" x 2" flat bar max. I'm not sure if my motor will handle that or not, but I'm sure I'll find out here in the near future. I've never tried tubing but I'm not sure the roller has the clearance for anything over 3/4" thick.

motorized pedestal ring and band roller

eligius1427 — Mon, 03 Dec 2007 11:49:47 -0600

motorized pedestal ring and band roller

eligius1427 — Mon, 03 Dec 2007 11:49:10 -0600

motorized pedestal ring and band roller

eligius1427 — Mon, 03 Dec 2007 11:48:21 -0600

motorized pedestal ring and band roller

eligius1427 — Mon, 03 Dec 2007 11:47:42 -0600

motorized pedestal ring and band roller

eligius1427 — Mon, 03 Dec 2007 11:46:56 -0600

"bigfoot" treadle hammer

eligius1427 — Wed, 21 Nov 2007 20:26:16 -0600

Does anybody have any experience or knowledge about a "Bigfoot" treadle hammer by Bigfoot Enterprises? It is a new design I guess by a fella named Stanley Swartz up in Illinois. The hammer head is 165 lbs but his "6 year old niece can operate the hammer with ease". The hammer head motion is straight up and down instead of an arc like most treadle hammers, and he is working on an air hammer upgrade. The hammer is fairly expensive compared to existing models however and it is a relatively new design.

Plans for 3 roll bending machine?

eligius1427 — Wed, 21 Nov 2007 20:10:05 -0600

Does anybody have plans for a powered 3 roll bending machine? I have a cheap hand operated machine and am looking for something a little more appropriate for production work, but don't have the money or space for a commercial machine. I'm looking for capacities up to 2" x 3/16" dia rnd tube, 1"x2" x 11ga rect tube(easy way), 2-3"x1/2" flat bar(easy way). I end up farming out my work right now and am taking it in the shorts both in costs and lead times. Here's the rub, I need it to be portable or horizontal. I only have 8' ceilings in my garage and end up rolling all of my arcs outside. Ahhh, what I'd give for a new shop, but until then I could use some alternative solutions.