Hi Guys,

I've been fitting the DRO parts to the mill and doing some maintenance work that should have been done a long time ago.

15-02-2021-001.JPG

I got the bracket fitted to the side of the column for the DRO read head arm. Once I had decided on a position it was just a matter of drilling and threading a couple of holes. I had to drill another hole in the bracket so that I didn't hit the outside edge of the column. I used M6 cap screws to secure it, they didn't provide any screws so I had to use my own. All the ones supplied were black japaned finish mine are all zinc plated ones. They did provide an M8 bolt but the pivot hole in the bracket is for an M10 bolt, so you end up with a 10 degree slope on the readout head arm.

Now onto one of the issues that I need to fix !

15-02-2021-002.JPG 15-02-2021-003.jpg 15-02-2021-004.jpg

These pictures are of the geared drive to the mill head. Some time ago it started skipping teeth on the gears. One gear is steel and the other is brass. I've given them a clean but the grease on them and the threads was like thick brown treacle, no wonder that the head drive was hard to turn. I've also discovered that the leadscrew that lifts the head has a 3 mm bend in it. Which doesn't help either.

There aren’t any spares for the brass gear so I am hoping that some kind person can come up with some suggestions as to how I can sort this problem out. I can sort the bent leadscrew but I'm at a loss with the brass gear short of getting a new one.

I propose doing some other modifications as part of this maintenance work.

Thanks Guys.
Attached Images




Read the full thread at metalworkforums.com...