Here is a 4tpi thread pattern.
Your really have to be right on with project size for something like this.
Here is a 4tpi thread pattern.
Your really have to be right on with project size for something like this.
Morton
Does look a little different than your spiral design...
CJ
CarverJerry
ver. 1.188 Win 7- 64b with 6 GB ram @ 2.8Ghz and dual 1Tb hard drives. Rock Chuck & Ringneck vacuum system hooked up to a Harbor Freight large vacuum. Center line text, conforming vectors.