Elliot omnimill horizontal lead screw

Elliot omnimill horizontal lead screw

This topic has 7 replies, 5 voices, and was last updated 7 April 2021 at 10:01 by Vic.

Viewing 8 posts - 1 through 8 (of 8 total)

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6 April 2021 at 17:15 #538381
Philip Major
Participant
@philipmajor52482
Hi, I have an Elliot Omnimill and a fab bit of kit it is too.. however the leadscrew now has a bit to much backlash in the middle most used part. I was thinking would it be possible to replace it with a ball screw? Any one done anything like this? Input always appreciated
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6 April 2021 at 17:15 #20232
Philip Major
Participant
@philipmajor52482
6 April 2021 at 17:20 #538382
Dave Halford
Participant
@davehalford22513
If I'm not mistaken all ball screws are metric.
6 April 2021 at 17:22 #538383
Philip Major
Participant
@philipmajor52482
Being brief, i didn't say so above, but at the same time I will fit a dro
6 April 2021 at 18:43 #538399
Bazyle
Participant
@bazyle
Have you asked on the Elliott group? Someone who has CNC'd their machine might have a spare unless you are also aiming to go that route. If you can get a spare you can remachine it to have an even 'wear' all aong and then make an anti-backlash nut.
7 April 2021 at 09:21 #538496
Ian McVickers
Participant
@ianmcvickers56553
The table screw is keyed along its full length to allow the table drive mechanism to work so replacing it with a ball screw wont work unless you are going to either do away with the drive or modify the machine to have an external drive. Mine is worn as well and needs a new nut but havent got anywhere near to doing it yet.
7 April 2021 at 09:37 #538503
Philip Major
Participant
@philipmajor52482
Hi Ian , thanks just the sort of info I am looking for, I haven't stripped the table down to investigate! Maybe I need to as a first step and start to consider an anti backlash nut.
7 April 2021 at 10:01 #538510
Vic
Participant
@vic
I’m not sure of the machine, it may have been a VMC, but it was retrofitted with a ball screw. Not simple as I remember but quite doable as they say.
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