2010/11/18 Andy Pugh <a...@andypugh.fsnet.co.uk> > On 18 November 2010 12:49, Viesturs Lācis <viesturs.la...@gmail.com> > wrote: > > > 1) What is the point to have Z axis and also W axis in one machine? > > Either of them changes tool's position along Z axis. Using them both > > simultaneously does not make sense to me. > > I imagine that the "beam" is a lot stiffer than the "quill". You > probably machine with the "quill" retracted as far as you can, but can > still reach down inside things when required. > > Yes, and it's also a speed thing. Accelerating only one part takes time because of the weight itself, if both moves it goes much faster.
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