moonlight machine
Diamond
- Joined
- Nov 19, 2007
- Location
- marysville ohio
I'm making some parts that have a step on both ends and a tolerance of .001 between them. normally no problem but the OD is 5/8 nominal. the diameter varies between .6215 and .6240. I'm using a internal stop in the collet. the collet closer is a Royal lever action.
The OD variance causes the collet to grip deeper or shallower in the spindle. I use a stop on the carriage to set the depth of the cut. So you see how the distance between the steps changes with the diameter of the part. I ended up going through all the parts and grading them for diameter, and constantly adjusting the carriage stop. Any ideas how to get around this other than starting with 3/4 Dia and turning it to .625?
The OD variance causes the collet to grip deeper or shallower in the spindle. I use a stop on the carriage to set the depth of the cut. So you see how the distance between the steps changes with the diameter of the part. I ended up going through all the parts and grading them for diameter, and constantly adjusting the carriage stop. Any ideas how to get around this other than starting with 3/4 Dia and turning it to .625?