- Joined
- Aug 12, 2013
- Messages
- 858
That is always the achilles heal when folks start converting a machine to cnc... unless they start with two machines, at some point all you have is a pile of parts. You always need a manual machine standing by, even if you purchase a "complete kit", since the manufacturing variances on the smaller chinese mills invariably means machining is required.
You mentioned "handle modifications" before. My understanding of one of the reasons you usually don't use ballscrews on a manual machine is that the ballnut friction is low enough that you can actually rotate the leadscrew by pushing on the table (never a problem with a normal acme screw). That means you have to lock the handle in place to keep the axis from moving while machining.
How does this work?
You mentioned "handle modifications" before. My understanding of one of the reasons you usually don't use ballscrews on a manual machine is that the ballnut friction is low enough that you can actually rotate the leadscrew by pushing on the table (never a problem with a normal acme screw). That means you have to lock the handle in place to keep the axis from moving while machining.
How does this work?