I have a Sieg x1, but its the same company as the mini mill you have.
What you speak if is backlash, if you do a search on this forum you will probably come up with 100 pages. It is the enemy of CNC, not so bad manually.
This is normal, not just for a low end mill. THe bridgeport I use has significantly more backlash, and thats not a low end machine.
The mini mill should have some sort of backlash adjusting "split nut", try playing with that.
I know for my X1, when i got thrust bearings installed and the backlash nut adjusted, i can get it under .001". Then when you do CNC your software will have some sort of software compensation.
Still, its good for the machine to have as little backlash as possible. |