You can buy a manufactured 90 degree bend or make one on a cable tray bending machine but in this video I show you how to make one using a metal bar. more. I am an apprentice electrician and looking knowledge on how to create a 90° bend on a cable tray suitable for SWA. Can anyone explain the formula needed to make the perfect gusset? IF YOUR POST FITS INTO THIS. For example, if we have to make a field bend for a 12” (300mm) metallic ladder tray using straight sections of this tray, then how much should be the minimum radius of this field bend? Thanks Are you even allowed to bend this kind of thing? I thought you had to cut it and bolt the pieces together. How to calculate size of cut-out section (D) for a pre-determined angle set Eg.
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