Thank you. All the other online calculators and explanations fell into place after watching your video. I appreciate it. I can now better position hole positions on bent flanges.
The flaw in all these calculating videos is that not one video shows how to make the actual exact bend radiuses on a piece of metal in a shop and end up with the exact FLAT distance you need. . Not one. Have any of you even made a single U channel from a piece of sheet metal to a specific bend radius? I doubt it. The first bend is cake. BUT It is no simple task to make that SECOND bend and end up with the exact distance of the FLAT between bends. No one shows it. Also no one shows how to control the radius in the bend. ALL the precision in making the drawing and calculations is worthless without being able to make it.
The radius in the bend is determined by the radius of your tool, be it a sharp one, like r=0.8mm or an axel like 20mm. Those sharp ones do wear down from use and get duller but that much variance you just have to deal with.
@@LauriHuu your lost. That response was so far off base to my point it is not worth even trying to correct you. you are not even in the same universe much less same page. nothing I said relates to the bending tool radius.
That's the theorie. In practice especially in tests where you have not enough time you will take a bit larger sheet metal, bend the inner two radius then the outer two and cut the overhang on the ends. Fastest method. :)
