Re: [CAD_CAM_EDM_DRO] Digest Number 2309

Steve Blackmore <steve@...> wrote:

Tom wrote:

>The unit I use at work has BSA anti-backlash nuts, and I am pleased
>with the results that we get. I am hoping I can install them on the
>Taig mill.

Until the supplied nuts wear out anti-backlash nuts are unnecessary.

There is backlash adjustment built in on the "CNC ready" or CNC Taig
mill. Also most software has backlash compensation too.

[The supplied nuts start with about .003" backlash, according to the
factory, which gets worse with wear. This doesn't sound like much, but it
can be annoying. What adjustment are you referring to in the CNC versions?
Software compensation doesn't work very well in contouring operations, where
a lot of little movements are being made continuously.]

Why waste money on something that's not needed?

Steve Blackmore
--
Pilot Consultancy Limited ***** Computer Consultants
Telephone 01744 752256 Mobile 07831 768478
Email: steve@... WWW: http://www.pilotltd.net

[I'm with Tom on this one- I'd like to see Taig include anti-backlash nuts
as an option. Something like the XCT 5000 shown here:
http://www.ballscrews.com/html/2/4.html would probably work. It would be a
lot easier to get them to put them on originally than to have to retrofit
them later. The problem I've noticed with this type, though, is a tendency
to spontaneously unscrew themselves from their mounting holes. I've heard
there are other types with a triangular mount, which fits in a triangular
hole and doesn't have this problem. Anybody know where to find them?]

Andrew Werby
www.computersculpture.com