- Joined
- Feb 1, 2015
- Messages
- 9,937
Not old school but I usually make up a CAD drawing for all but the simplest projects. I let the CAD program figure out the coordinates for the bolt pattern by dimensioning each hole in x and y from the center. I have the bolt circle feature on my mill/drill DRO and as a conversational program on my CNC and I can't honestly say the I have used either of them.