- Joined
- May 3, 2020
- Messages
- 229
My DRO is losing position while I operate my mill.
What could cause a small random error in position? The work is mounted in a fixture that has a central dowel pin. If I put the Indicol on the dowel before and after making a part, I find errors in position.
The mill is a G0755 (RF-45) and I've mounted the glass scale for X directly to the underside of the table. The X-axis read head is fixed on a bracket near the lead screw. The Y axis scale is fixed under the mill and the read head travels with the Y saddle. This is the kind of thing that happens when you watch too many Renzetti videos.
COULD IT BE VIBRATION? I'm cutting a 0.750" deep pocket in 4140 with a 1/4" endmill. There is some vibration when cutting the pocket and for finishing cuts at full depth, there's some vibration in the corners. If it is vibration, I would expect more in the X axis and less in the Y axis because of the geometry of the mill.
What could cause a small random error in position? The work is mounted in a fixture that has a central dowel pin. If I put the Indicol on the dowel before and after making a part, I find errors in position.
The mill is a G0755 (RF-45) and I've mounted the glass scale for X directly to the underside of the table. The X-axis read head is fixed on a bracket near the lead screw. The Y axis scale is fixed under the mill and the read head travels with the Y saddle. This is the kind of thing that happens when you watch too many Renzetti videos.
COULD IT BE VIBRATION? I'm cutting a 0.750" deep pocket in 4140 with a 1/4" endmill. There is some vibration when cutting the pocket and for finishing cuts at full depth, there's some vibration in the corners. If it is vibration, I would expect more in the X axis and less in the Y axis because of the geometry of the mill.