Re: [CAD_CAM_EDM_DRO] Stepless in Hawaii

I have 82K 1/2 watt resisters for 4.5 amp 2 volt motors.`

Jon Elson wrote:

>
> Gene wrote:
>
> > I cant believe that I could replace stepper motors with more powerful
> > motors and have lower performance. There must be something else. If I
> > have 1.8" step and 10 tpi leadscrews ,then with geckos would I set the
> > input scale to 20000? I tried to raise the voltage but no change, just
> > the motors got hot.
>
> It is well known that larger motors almost HAVE to have higher inductance
> than smaller ones, (current ratings being within sight of each other). Remember
> that the rating of all stepper motors is HOLDING torque, ie. torque at ZERO
> speed! The more inductance in the windings, the faster the torque curve
> drops toward zero. Are you sure you are using the right current setting for
> the larger motors?
>
> Jon
>
> Addresses:
> FAQ: http://www.ktmarketing.com/faq.html
> FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/
>
> OFF Topic POSTS: General Machining
> If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble.
> http://www.metalworking.com/news_servers.html
>
> http://groups.yahoo.com/group/jobshophomeshop I consider this as a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list.
>
> NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........
>
> Post messages: CAD_CAM_EDM_DRO@yahoogroups.com
> Subscribe: CAD_CAM_EDM_DRO-subscribe@yahoogroups.com
> Unsubscribe: CAD_CAM_EDM_DRO-unsubscribe@yahoogroups.com
> List owner: CAD_CAM_EDM_DRO-owner@yahoogroups.com, wanliker@...
> Moderator: jmelson@... timg@... [Moderator]
> URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO
> bill,
> List Mom
> List Owner
>
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/