Re: [CAD_CAM_EDM_DRO] Brushless motors from models and such

I think the OP is looking to use a propulsion motor for a spindle drive.

The hobby industry is presently experiencing rapid growth in brushless DC
motors and controlers.

Basically they are a VFD and 3phase motor. DC input 7.2 to ??? volts input
and require a 15 - 20 MS repeating 1 - 2 MS positive pulse from the radio
system throttle channel.

No reason they would not make a good spindle drive motor for a small
drilling or milling system as in PCB work.

As far as using the motor and speed controller for positioning I think not.
No feedback capability and way to course control.

Hugh
Hobby shop owner/ hobby electronics electroinc tech.
Always willing to answer questions

----- Original Message -----
From: <r@...>
To: <CAD_CAM_EDM_DRO@yahoogroups.com>
Sent: Saturday, September 03, 2005 5:10 PM
Subject: RE: [CAD_CAM_EDM_DRO] Brushless motors from models and such


> Try googling for "hacking servos". It's a fairly popular activity for
> the robotics folks to remove the travel stops on RC servos and use them
> as motors.
>
> -----Original Message-----
> From: CAD_CAM_EDM_DRO@yahoogroups.com
> [mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of turbulatordude
> Sent: Saturday, September 03, 2005 12:29 PM
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Brushless motors from models and such
>
> Hi all,
>
> I have been trying to find information on these small hobby motors and
> have come up pretty empty.
>
> It seems there is not listing or charts that show what sizes are
> available, surprizing that I didn't find manufacturers with such data.
>
> Also, I have not found the electronical link between the controllers and
> the R/C receiver. One guy at tech suppport said he thought it was
> 0-5 volts, but was not sure.
>
> Does anyone know of any hobby lists or other sources of information were
> the guys would actually know how the parts work ? it seems the whole
> hobby is orienteated towards using the toys and not engineering them.
> (just opposite of this list)
>
> Dave
>
>
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> 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 to be 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........
> bill
> List Mom
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> Yahoo! Groups Links
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