Also, any good hands-on engineer should be bi-lingual anyway! Yes it is in inches but the units can be easily substituted for millimeters. Sheet Metal Calculator Bend Allowance Equations and Calculator - Engineers Edge () Then you should be able to join these up without the wire moving. Hitting back towards the wire roll the sheet over about every 100mm until it is holding the wire. Holding the wire in with your thumb, screw driver ) or vice grips, depending on how thick the sheet is. Once its over as far as you can get it with the wire still on the anvil, flip it on its back. If the wired edge is straight you can use wedged shape anvil (can't remember what they are called "knife" maybe) You want to stop the wire from moving down, once its moved it a pain to get back. Working along as much of the length as you can fold it just a little each pass, trying for as long as possible to have the wire on the anvil. oh and good luck with anything over about 1.2mm ) But if you are rolling thick sheet with a hammer you may stretch it enough that you have to reduce the allowance. As the sheet thickness goes up the allowance should get bigger. As the Dia of the wire goes up the allowance should get bigger. )ĭo you mean "Is the wire allowance always the same size"?
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