Pocket size layout guide for holes.

[aametalmaster]

(08-18-2012, 05:02 PM)f350ca Wrote: Neat jig. What do you use for a compass Bob? Doesn't a regular set of dividers lay out the circle wrong as you come down the curve of the pipe.

Yes it is wrong. Those last examples were the extreme of what i do. Usually with the 4" that are close together i tack the couplings to some sq tube with the centers i need. Lay the now tacked together part on the tube and trace it with a long piece of new soapstone. But normally the couplings are inline down the centerline of the pipe...Bob