My circle is not very round too - I'm out by 0.03mm.
2 things I've to get settled before I start on any projects using this mill:
1) Motor Tuning - to make sure that when I say move 10mm, the table indeed move 10mm (or within a certain range which I'll try to figure out what's good enough).
2) To measure backlash again - Maybe 0.03mm is good enough but let's see how much more I can bring this down. Again, no target set yet.
I've a video taken when the mill was making the 2nd last pass. I am wonder, if any kind soul out there can help answer, if the sound created by the endmill plunging into the workpiece is a sign of things not done right.
Do drop me a comment please.
I am tempted to go for the Wabeco D4000 when Terence asked me if I am thinking of letting go of the Proxxon PD400. This presented an opportunity to go for the lathe I always wanted but settled for my 2nd choice due to budget. I'll have to give this some thought given the uncertainty in the market. Also, I've not explored the full potential of the Proxxon. It will be a waste to swap it out at the moment. I'm rather divided...