How do I remove the Z-axis ballscrew, for replacement?

All info relating to the Denford Novamill CNC Milling machines

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neil_f
Posts: 12
Joined: Sun 23 Mar , 2014 23:26 pm
Hardware/Software: Triac

How do I remove the Z-axis ballscrew, for replacement?

Post by neil_f » Tue 23 Feb , 2016 17:23 pm

Anyone done this before, or have any thoughts on how it could be done? Mine is a January 1999 model (serial number 81014C) and has double ballnuts on the Z axis. Obviously it means removing the body from the base, but I was going to do that anyway to fit a raising block.

As a supplementary question, when did the Novamill acquire double ballnuts on the Z axis? The production drawings posted in this forum only show a single ballscrew on the Z axis. Or were double ballnuts dropped for the later models that the drawings refer to?

Thanks,
-Neil F

fgc
Posts: 7
Joined: Fri 22 Jun , 2012 6:01 am
Hardware/Software: Looking to purchase Denford machines in the near future

Re: How do I remove the Z-axis ballscrew, for replacement?

Post by fgc » Thu 12 Jan , 2017 21:54 pm

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
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View from inside column with spindle drive belt trapped within the Z screw
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Z Axis view from top
image.jpg (929.72 KiB) Viewed 2882 times

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