Sanding inserts? No thanks

[Diplomatico]

I didn't want to sand down my insert to fit my 1675 bezel so a friend of mine 3D printed a contraption that holds the bezel in the lathe without damaging it. And voila.

No more sanding

Video: https://imgur.com/gmJIKHa

 

[schtozo]

Very nice! Do you recall what was the diameter before machining it? And also whats the end result? Whats the tolerance difference between it and the insert outer diameter?
I have the same issue with the viet bezel, its lip is at 37.52mm~ compared to the 37.75 insert od.
If its not more asking of course, any help is appreciated.
Cheers!

 

[Diplomatico]

Very nice! Do you recall what was the diameter before machining it? And also whats the end result? Whats the tolerance difference between it and the insert outer diameter?
I have the same issue with the viet bezel, its lip is at 37.52mm~ compared to the 37.75 insert od.
If its not more asking of course, any help is appreciated.
Cheers!

The diameter on the recessed part was 37,50mm on mine before machining. I took small increments and tested back and forth until it fit so I don't have the current measurement on the top of my head. I'll take some measurements when I get back home.

Best,

 

[WildString46]

I remember reading it was a +/- 0.02mm tolerance for inserts to fit. Lean more towards -0.02mm for the insert to satisfyingly click into place.