What to charge for this machining job?
A fellow asked me to do a little machining project for him. Cut 50 - 1" "biscuits" from 3" round A36, Drill a 7/8" hole in the center and thread to 1"-8tpi.
Then he wants me to drill a .2770 hole 3/4" deep and thread to 5/16"-18tpi in one end of a 6" by 1" rod threaded to 1'-8TPI (X50). The tolerances on this are pretty loose as they are height adjusters for metal building columns.
Since he is providing all the materials, I thought I would slice off the 50 biscuits in the band saw (I have a little 4X6 Clark) then chuck them in the lathe, face both ends, then drill the 7/8" hole and single point the 8tpi threads. The lathe is a 1340.
Then I would chuck the threaded rod in a collet on the lathe and bore the .277X3/4" hole and then hand tap the 5/16X18tpi thread. I would use the lathe to start the tap straight. These rods are medium carbon steel, quenched and tempered as in a grade 5 bolt.
The question is,,,, what would be a fair price for this work? Again, he is going to deliver the materials to my shop.
What say you gentlemen?