Okay.

I'm trying to calculate a K-factor for use with my bent part. Here's what I know:

-bend angle (BA) is 90 degrees

-material thickness (T) is .0625

-bend radius is (BR) .03125

-Flat length (FL) is 4 inches

-Bent leg outside length 1 (OL1) is 2.0625 inches

-Bent leg outside length 2 (OL2) is 2.0625 inches

Here's the formula I use to reverse engineer the K-factor:

Bend Deduction (BD) = OL1 + OL2 - FL Outside Setback (OS) = (Tan(BA/2))*** )T + BR) Bend Allowance (BA) = (2 *** OS) - BD K-Factor = (-BR + (BA* / (pi * BA / *180)))/T

When I input all of my values into this mess, I get a K-Factor of

1.320303226. I'm pretty sure that's not right, as the K-factor can't be over 1 (right)?Using a small program called Plus-Bend to do the same thing, I get a value of .14 (the program rounds it). I believe that value to be correct.

Can anybody help me figure out where I'm going wrong--is it the formula, my math, or something else? I basically want to be able to use the known variables given above to calculate the K factors for the various materials I'll be bending. I'm new to this so it's a little confusing. Please let me know if you need more info than I've given here. Thanks!

Brian