oh I see. Thanks for explaining. I will keep a lookout for these areas of wear for mine as well.

Thanks again.

Thanks so much for sharing your teardown! This is very useful when it comes time for me to refresh my old Orac. I really appreciate the effort and time you spent sharing these photos. Please post updates and any tips on reassembly or adjustments you found along the way.

Thanks!

Hi Ben

Thanks for taking time to reply. I have been away and wasnt able to work on upgrading the mill. Thanks for the tips. Will look to upgrading it soon.

Cheers

"You'll need to remove the castellated nut, and then knock the leadscrew downwards out of the casting. The nut is what sets the preload on the two bearings that control endfloat, whereas the bearing at the opposite end is just to provide support. You may need to remove the column, as there may not b...

Beautifully done. Thanks for sharing. I too just got a local machine shop to make me a spacer. Can't wait to fit it in (though I have to modify the ATC as well) Q1 - once the 4 large bolts at the base is undone, the entire Z column with everything else attached to it also lifts up with the column? S...

Ben

fantastic job in getting it made! cant wait for your next update with it fitted and running!

Hi Neil

Any luck removing the Z Axis lead screw?

I'm stumped by it too. I need to remove it so I can replace he spindle drive belt.

Appreciate any info on technique to remove the Z Leadscrew

Thanks
Francis