Re: Acme, ball screw or rack for wood router?

There will always be some superfine dust around no matter how good
your dust extraction system is.


So forget ballscrews and leadscrews (and linear bearings on ways).


Ultra fine dust will eventually work into the mechanisms and cause
problems.


The most dust tolerant drives are timing belts or roller chain drives,
though a rack can work if you mount it teeth down with the drive gear
below it so the dust is less likely to settle in the rack. If you
decide on belt drive, mount the belt with the teeth facing down.




I expect some expert CNC experts may disagree with these comments as
their setups have worked ok to date. But I speak from a lifetimes
experience as a professional woodworker and know that as machines
loosen up a bit the dust will start to work its way inside the most
delicate places.




Regards


Bob Thomas.




--- In CAD_CAM_EDM_DRO@yahoogroups.com, "ddgman2001" <sheldon@d...>
wrote:

> What is the best drive system for a wood router considering the

dusty

> environment?