Ok, so by now we should be well versed with multipliers for 30's and 45's..
Ever tried in bend a 2 inch offset in 4" emt?
it won't fit, the shoe will hit the first bend.. Not enought distance between bends. need it decrease offset angle, for instance a 15 degree is 3.864.
here's a trick, if you have a calculater, you can figure any multiplier for any degree ofset:
<desired offset angle> * sin * 1/x
so another words, if i wanted the multiplier for 5 degree angle, i would hit 5, sine button, then 1/x button. gives you the multiplier.
Conduit Shrinkage
30 degrees shrinks 1/4" per every inch of offset
45 degrees shrinks 3/8" per every inch of offset
60 degrees shrinks a half inch.
ever seen a 3 pt saddle where the saddle is not centered over the obstacle? thats a huge pet peeve of mine. anyways, a 3 pt saddle shrinks 3/16" for every inch in the saddle.
hope this helps.
