Re: [CAD_CAM_EDM_DRO] Re: Reduction

jbordens wrote:

> Jon,
>
> thanks for the explanation. Those "unstated provisos" can really
> catch you off guard when you're just starting out. I sure don't
> have an ideal voltage source in my basement. :)
>
> >From what you've said, I think I'll go with direct-drive to the
> leadscrew. At least for the short term. If I find that my motors
> are straining, then I can always gear them down with some pullies
> later. Are there any compelling reasons not to do this?

No, as long as the motor torque is sufficient.

> ...And... I can use my direct-drive CNC to machine the pully
> assemblies if I need to. ;)
>
> I like your idea of mounting the encoders on the leadscrew rather
> than on the motor for a pully drive system. (In another thread) In
> fact, I was considering that option myself. Is it difficult to get
> working correctly in terms of alignment and tweaking?

No, not at all. Of course, there is some precision machining to
be sure the encoder is precisely aligned with the leadscrew, and
helical-slit couplers would be used.

Jon