Had a week where every single part came out perfect on the first try

Last Tuesday I ran 200 parts on a Haas VF-2 and zero rejects. That never happens for me, usually I scrap at least 3 or 4 from tool wear or chatter. Anybody else have a golden week like that and then get suspicious your luck is about to run out?

2 comments

2 Comments

victor_carr548d ago

Check your tool runout again with a tenths indicator before the next job. That perfect stretch might mean your spindle is finally breaking in and holding concentricity better than it ever has.

leeknight8d ago

Enjoy it while it lasts. That perfect week usually means the tooling is about to take a dirt nap or the temperature in the shop is going to shift and throw your offsets off. If you ran 200 parts with zero rejects, odds are good you were just in a sweet spot where the coolant, the material, and the cutter all happened to be happy. Problem is, those sweet spots don't last. I'd be looking over my shoulder for the next batch of material because that's usually when the hardness jumps or the bar stock has a seam.