RE: [CAD_CAM_EDM_DRO] Re: HOBBYCNC

Vince,

If you criteria for performance is how fine they can microstep than yes
the PIC design is superior. I am using some drives that will do 50,000+
microsteps per revolution, but find that in my application (in this case
a Sherline mill) they give the best results when considering all the
other factors at 1000 microsteps per revolution.

My point is that on most of the applications I have seen 1/4 - 1/8
microsteping (800 - 1600 steps per rev) is usually giving a smaller step
increment than the machine can resolve anyway and is smooth as can be.
At that point all that going to a smaller step increment does is place
heavier demands on the controller software. So if my choice was between
a microstep rate that yielded a step increment much lower than the
machine can deliver or having a bipolar 2.5 amps prebuilt microstepper I
would not have a hard choice.

As has been pointed out we live in wonderful times where us CNC
hobbyists have so many choices so we can all get the features we feel
are important.

Tim
[Denver CO]
Sherline Products at Deep Discount
Mach1 & DeskCNC with Credit Card ordering
Contact me for discounts on DeskCNC & Sherline bundles
www.KTMarketing.com/Sherline

> -----Original Message-----
>
>
> Can any of those do Microstep 3000+/rev. ???
> Who cares about the current draw... Switch the driver
> transistors and you could push 10amps. (of course recal would
> be necessary)
>
> > microstepping to 1/8 for the Xylotex.
>
> I might be mistaken but this still doesnt seem to beat the
> performance of the Pic based one. Am I wrong?
>
> Let me know.
> Vince
>