Sheet metal brake build need advice

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anyone have any ideas for clamping this brake without nuts and bolts. maybe a lever style clamp or hydraulic. I will be grateful for all advice and tips. Also any ideas for mounting a  hydraulic ram for bending. Attached ImagesLast edited by g-man; 06-25-2013 at 05:33 PM.Reason: change title
Reply:why no nuts and bolts?I would think some good size acme thread and some oversized butterfly type nuts would do great in this application. Think vice handle welded to the nut complete with ball ends. quick on, quick off. plenty of torque. and easy to set up.There are no problems. There are only solutions. It's your duty to determine the right one.Hobart Handler 210Airco 225 Amp MSM Stinger
Reply:Originally Posted by ThorsHammerwhy no nuts and bolts?I would think some good size acme thread and some oversized butterfly type nuts would do great in this application. Think vice handle welded to the nut complete with ball ends. quick on, quick off. plenty of torque. and easy to set up.
Reply:Cams are the way to go.(Home)Miller Maxstar 152 (sold)MM211/spool gunLincoln AC 225C(Work)Dynasty 350Powcon 300STLincoln SP-175TWeldlodgic AWS150sWeldlodgic AWS300Custom Resistance seam weldersCambridge Vacuum EB weldersI smell something burning.
Reply:what is the best way to keep the top from flexing up when bending and the best way to keep the bending piece from flexing?
Reply:add a truss to the clamping and bending sections. 6"-12" center bar with a strap that goes from either end of the clamping/bending sections. the strap should be under tension to prevent movement when bending. the end of the clamping section should have approximately 1/8" of deflection on both ends to make sure there is no slack in the  strap when the ends are clamped down.you'll note, that having the truss will prevent any effective single clamping system unless you go with a hydrollic/pnuematic system. Otherwise you're going to be going from one side than the other to lock it down.Last edited by ThorsHammer; 06-28-2013 at 01:30 PM.There are no problems. There are only solutions. It's your duty to determine the right one.Hobart Handler 210Airco 225 Amp MSM Stinger
Reply:the clamp-bar edge should be close to the centerline of the pivot pins.miller thunderbolt 250vlincoln square wave tig 175 prolincoln idealarc mig sp250everlast tig 210EXTeverlast power plasma 50chicago electric (hf) 130 tig/90 arcchicago electric 90 amp flux wire3 sets oxy/acet
Reply:GmanHere is a link to the one I built the A-frame takes the flex out.Dave ReberWadsworth Ohio
Reply:http://weldingweb.com/vbb/showthread.php?t=102981since he didn't post the link.There are no problems. There are only solutions. It's your duty to determine the right one.Hobart Handler 210Airco 225 Amp MSM Stinger
Reply:Thanks Thor!! I turned 50 today hope forgetting stuff is not a trend.Dave ReberWadsworth Ohio
Reply:Originally Posted by ReebsThanks Thor!! I turned 50 today hope forgetting stuff is not a trend.
Reply:Why wouldn't you just drill holes every six inches (clearance on top hold down, and then drilled and tapped on the bottom support.) Then use two simple bolts and washers to hold things tight, one at each edge of your workpiece.  Cheap, functional.  With that angle iron on top you won't need any brace truss, what you have should be plenty strong.  Every six inches should be enough to give you some options on material width.  If the material you want to bend is only 9" wide you'd have a bolt to bolt hold down width of 12".   If you need better support, fine...  then drill a hole every three inches.  I'd use 1/2-13tpi allen head machinist style bolts.  Put them as close as possible to the angle iron vertical face.  Am I missing something?ZipLast edited by zipzit; 06-28-2013 at 03:25 PM.
Reply:I have built 3 brakes and used bolts on one it is ok but very slow. The one i have now is not finished because of trying to figure out a good system.I am useing bessy clamps untill i have time to work on it.
Reply:Flip through here http://www.homemadetools.net/site/se...&Search=Search all sorts of good images. If need be alter the search term(s).Late to bed, and early to rise. Fish like hell so I don't have to make up lies. Syncrowave 200MM211 & Spoolmate 100