- Joined
- Dec 26, 2015
- Messages
- 2,139
As for the indicator itself, IMO a tenths indicator (0.0001”) is too sensitive for tramming. I reserve my tenths indicators for use on the surface plate (for checking tolerances, squareness, surface finish, etc.) and to calibrate my Haimer and Tschorn 3D edge finders. I have found that the best indicator for tramming purposes is one marked in 5/10ths - like the one I showed in the photos above.
I did not mean to imply by my photo that you should tram the mill with the vise installed - I was simply too lazy to remove my vise to snap that photo of the indicator and Noga indicator holder posted above. Indeed, all items on the table should be removed before tramming. The following video is the process I use and recommend, except that moving a 1-2-3 block around the table as you check heights makes the job easier and more accurate.
I did not mean to imply by my photo that you should tram the mill with the vise installed - I was simply too lazy to remove my vise to snap that photo of the indicator and Noga indicator holder posted above. Indeed, all items on the table should be removed before tramming. The following video is the process I use and recommend, except that moving a 1-2-3 block around the table as you check heights makes the job easier and more accurate.