RE: [CAD_CAM_EDM_DRO] Mini-Lathe CNC conversion question

Tad,

Just for your information, I converted my mini lathe to CNC earlier this
year. I am using 187 oz/in motor on the Z axis with 2:1 reduction and a 147
oz/in motor on the X axis with 1.6:1 reduction. I can run it at better than
30 IPM for rapids but choose not to run that fast. I am using a PMDX Motion
Management System for drivers, 35 Volts at 2 amps for each motor, Mach2 for
the control program and a 400MHz PC to run it. If you have the lathe
properly adjusted you should be pleased with the results. There are
pictures at http://photos.groups.yahoo.com/group/7x24Mini-LatheCNC/lst in
the "John's 7x24 Stretch" folder. If you have any questions plead feel free
to ask.

The lathe will be at Iron Fever next month, making chips.

John Guenther
'Ye Olde Pen Maker'
Sterling, Virginia

> -----Original Message-----
> From: Tad Johnson [mailto:h2opowered@...]
> Sent: Wednesday, July 07, 2004 16:06
> To: CAD_CAM_EDM_DRO@yahoogroups.com
> Subject: [CAD_CAM_EDM_DRO] Mini-Lathe CNC conversion question
>
>
> Hi again,
>
> I am also thinking of converting my Mini-Lathe to CNC
> now that I have it all tightened up. I looked at some of
> the basic conversion kits, most of which have 80-120oz/in.
> drives and have been told that these will not be sufficient
> for this little lathe. Maybe 200oz/in would be minimum
> rating even if I gear reduce them 3:1?
>
> Also, a typical driver capable of 3ampere would be insufficient
> for a typical 200oz/in drive?
>
> Thanks again,
>
> Tad
>
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