owens.cameron•10d ago

Spent 6 hours chasing a .002 inch offset on a Haas VF-2

Turned out the soft jaw was grabbing .005 higher on one side. Anyone else waste a whole shift on something this dumb?

3 comments

3 Comments

daniel_walker10d ago

The jaw was probably clocked in a different spot last time.

keith_rodriguez10d ago

Had a buddy years ago who popped his jaw out eating a really thick sandwich, not even a punch or anything. He was just biting down and it made this awful crunch and he couldn't close his mouth. The doctor had to pop it back in and told him it might shift a little every time he ate something tough from then on. So yeah, the bite angle and where you hit can totally mess with how that joint lines up. Makes sense that a different clock spot would change the whole puzzle.

blake6918d ago

Oh man, that is the most frustrating thing when you're chasing a ghost in the machine and it turns out to be something that basic. I remember once I spent a solid 4 hours tramming a Bridgeport vertical mill because the head was cutting a little heavy on one side. I shimmed the knee, checked the ways, even took the drawbar apart. Finally I realized the vise was sitting on a stray chip about the size of a grain of rice, and it was tilting the whole part by like eight tenths. I had a pile of scrap parts and my boss was breathing down my neck. It's always the stupid stuff that eats up your whole day, isn't it?