Normally, i would assume the take up of a bend is:
2*pi*radius of shoe*angle/360
the other day, a senior journeyman was bending a 30 degree bend on a shoe w/ 8.25" radius. Assuming correctly, the take up of the bend should have been approximately 4 & 1/4", he spaced the marking on 7", the second bend fell right on the first.............What happened? I would assume the shrinkage wasn't that much. Is the formula wrong?
Thanks in advance to any replies.
JD
2*pi*radius of shoe*angle/360
the other day, a senior journeyman was bending a 30 degree bend on a shoe w/ 8.25" radius. Assuming correctly, the take up of the bend should have been approximately 4 & 1/4", he spaced the marking on 7", the second bend fell right on the first.............What happened? I would assume the shrinkage wasn't that much. Is the formula wrong?
Thanks in advance to any replies.
JD