Beau
Thanks for the good advise. Just a quick note. I can't possibly garantee that every headstock I produce will have that good of a runout. This is the first sample I received. Ad for my expectations, well for starters every machine / headstock I sell gets the same test, jaws bored out, runout measured and communicated to the customer. One more thing, I just bought the digital dial indicator, and thought it would be the nuts, but it increases by 0.0005 increments, so the more I thought about it the more it started to sound untrue, so I watched the video again and noticed it actually fluctuate between -0.0005"and +0.0005", which means 0.001" run out, and that still is great, but at medium speed with motor running 50%, and motor vibration at minimum, the indicator was showing 0 movement. So I went back this afternoon and checked it again with my old indicator, and it measured between 0.0005" and 0.0011" pretty repeatable. I am still happy with that, and my expectations are for all my new headstocks to be less than 0.002". I must add that I believe 0.0005" runout is achievable, but you will have to carefully and properly bar the jaws, and the lathe be will need to be bolted down solid to a very stable heavy bench, then you would need to pre-support the motor very securely so that any possible vibration from the motor will not affect the headstock runout.
Best Regards
Bassel
Ps: I now accept credit cards / Debit cards payment ( no international credit or debit cards