Re: [CAD_CAM_EDM_DRO] Re: Z Axis Lubrication

ralaco wrote:

>Dear Jon:
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>>If mill, is that a knee screw, quill screw, or head lifting screw?
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>It's a 5 x 8 feet Router.
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>>Is the screw shielded, covered, with bellows, or out in the open?
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>The Lead Screw it's open.
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>>Ballscrew, Acme or 60 degree thread?
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>It's an Acme from Nook, Bronze Nut.
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Well, first, this sounds pretty bad, from a contamination standpoint.
grease would be
the normal choice, but grease filled with sawdust is very abrasive. I
might suggest
a bellows or at least a sliding cover to keep the dust away from the
screw, first.
Then, grease it. I have heard of exotic schemes with small blowers to
keep clean
air pressurizing a set of loose tubes fitted over the screws in a
telescoping fashion,
and that this worked very well.

Jon