Re: Stalling motors?

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "Jens Swales
<jipeess2000@y...>" <jipeess2000@y...> wrote:

> hi
>
>
> hm..
> first of all, i would check the friction on all axis in with a
> dynamometer to verify theres no variations.
> whats the weight/mass of the pinion? it must be included the
> calculation. have you verified that the voltage/current is enough
> under run, hook a meter and check, ive noticed several pwsups that
> didnt put out what they was rated.
>
> and 20 other parameters.....
>
>
> js
>

All axis are mounted with bronze bushings{x} and bearings{y} and
both use ball bearing thrust washers & shaft collers to hold shafts
in place. I have went through alot of trouble to make everything move
easely and smoothly. Moving x znd y shafts by hand, I feel very
little resistance and no binding. As far as the caculations I did not
enter weight/mass for x axis (about 15#),recalculated with 20# and my
requirments changed to 86 in/oz. Should my 125in/oz motors be able to
move the gantry assy. at higher speeds than what I am seeing? As far
as power supply I did check voltage with and without motors running=
67V and reel steady. Any thing else I can check?
Thanx,
MONTY

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> --- In CAD_CAM_EDM_DRO@yahoogroups.com, "monty60475 <montyx5@a...>"
> <montyx5@a...> wrote:
> > --- In CAD_CAM_EDM_DRO@yahoogroups.com, "Jens Swales
> > <jipeess2000@y...>" <jipeess2000@y...> wrote:
> > > hi
> > >
> > >
> > > this is an excellent freeware for calculating steppers:
> > > http://www.superiorelectric.com/WEB_motion/CAMAS.exe
> > >
> > >
> > > js
> >
> >
> > ok tried that program and exagerated the load and came up with
> > 67in/oz requirment. I am above that with 125in/oz. Anyone with

any

> > thought on this please jump in.
> > Thanx,
> > MONTY