- Joined
- Apr 8, 2013
- Messages
- 1,986
It's possible to have much better repeatability (which is what I think you want for your test bar) than accuracy.
I know repeatability is essential to what I'm trying to achieve but I don't follow what you're recommending. Where I'm headed is to have a one foot test bar turned on centers with a 3 inch collar near each end and the lathe tuned to make those collars is identical as possible. Is there some repeatability factor that I'm missing? Please bear with me as although I've been making drag car parts for a long time (tie rod, driveshafts, ect) this is the first time I had a machine with which I could even attempt to accurate. On my old machine I could actually see the carriage climb up onto the relatively unused portion of the bed as it got further from the chuck.