Bending allowence in sheet metal normally need bending radius to do the calculation?

Now one stupid question here, how do we going to know our bending radius actual number ???Bending allowence in sheet metal normally need bending radius to do the calculation?
Plug in your values into under given link





http://sylvaintrudel.blogspot.com/2007/04/sheet-metal-bending-calculator_13.htmlBending allowence in sheet metal normally need bending radius to do the calculation?
Yes, the material 'take up' can't be estimated unless you know the radius of the bend.


To get the radius you must look at the equipment you are using to bend the material, and the set up. At least, do a practice bend and measure the radius, test a calc and then refine for the best results.


The radius on a 90 degree bend for light gage metal will about match the radius of the brake.