RE : [CAD_CAM_EDM_DRO] Re: 3drouters - desperately seeking sign

> -----Message d'origine-----
> De : CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] De la part de caudlet
> Envoyé : mars 6 2007 10:08
> À : CAD_CAM_EDM_DRO@yahoogroups.com
> Objet : [CAD_CAM_EDM_DRO] Re: 3drouters - desperately seeking sign
>
>
> Actually a better source of info (and the Manuals) is on
> www.MachSupport.com
>
> The other address is http://www.ArtofCNC.ca
>
> You need to read the section on Motor Tuning. Each machine
> has a different set of mechanics that make up the math that
> gives you the correct distance. The secret is in the "Steps
> per Unit" setting. If you are in Inches than it would be
> Steps per Inch. You have to calculate the number of steps
> (pulses from the computer) it takes to move your machine
> exactly 1.000 inches. If you don't know the value of all the
> factors (leadscrew pitch, drive step rate, belt reduction,
> etc) you have to determine it by trial and error. It will be
> the difference between what you really move VS what is
> indicated on the DRO for that axis.
>
> (Sorry Darren, had to jump in)

Trial & error doesn't have to be complicated if you go about a stuctured
approach. Tell the machine to move something like 5 inches (make sure the
limit switches work), measure the actual distance travelled and then
calculate the ratio between the two. From there you should be able to
quickly finetune displacement from within Mach.

And they are right, the Mach forums have the most knowleable people on this
subject (I have just the download and read the manual and that automatically
makes me an expert LOL).

Robert
:)