FILENAMES: brake.dxf brake1.jpg brake2.jpg brake3.jpg brake4.jpg DESCRIPTION: These are an AutoCAD drawing and some pictures of a sheet metal bending brake. Thanks to JR North . JR provided the following description: ----------------------------------------------------------------------- Bending Brake Documentation A simple to fabricate brake using 3-1/2" angle stock,1/4" and 3/8" plate. These instructions assume moderate fabrication and assembly skill. I designed and built the unit because I needed to form a 24" aluminum cabinet, and did'nt want to lay out $500.00 for a brake. This unit is fairly light, and can be stored out of the way easily. The brake is designed for bending thin material only, but can be adapted using different dimensional stock to other applications. For box and corner bends, use different lengths of clamping plate, and drill the locating holes to suit. Plate is 1/4" and 3/8" hrs. Angle stock is 3-1/2"x1/4". Make to any length needed. Lengths over 24" may require box bracing under bending angle. The fixed angle (table) is welded to the side plates. Align carefully. The pivot arms are welded to the lifting plates under the bending angle, and to the pivot pins. The pivot pins are 1.125" tube. Make the pivot pins a very snug fit into the side plates. Locate the pivot holes precisely. The locating pin-sets in the clamping plate should be located so the first pin-set sets about a 22 ga backset, the second pin-set an 18 ga backset, and the third pin-set a 16 ga backset of the clamping plate. Locate the table angle point dead center in the pivot hole. Align the bending angle with the table, and backset apx. 0.010". Use 18" pipe sections for the handles, and force bicycle handgrips on the ends. You can mount the unit to a length of shelf board. Use heavy duty screw clamps on the clamping plate. Dimensions: side plates 4w x 4.250h x .375 baseplates 2 x 4 x .250 pivot pin 2.25 x 1.125 x .175 wall turn pivot pin to 1.000 w/shoulder against side plate pivot hole 1.000 location x 3.000 y 3.500 clamping plate 1/2" x 3 x length needed Other dimensions not critical The plans file is in DXF format. I have several other formats available. If you need additional info: JR North jasonrnorth@bigfoot.com 206-440-1664 evenings pst