RE: [CAD_CAM_EDM_DRO] Re: Servo motor questions

Just a note to say that as a designer of custom machines, I've always
provided a jack screw to do the adjustments with. Trying to move the
motor/plate and tighten the bolts is a lot like trying to tighten an
alternator belt with just a wrench.

R. Wink



From: CAD_CAM_EDM_DRO@yahoogroups.com
[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of Jon Elson
Sent: Friday, June 11, 2010 11:52 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: Servo motor questions





cnc_4_me wrote:

> Steve said
>
> "it's probably easier to slot the motor mounting holes."
>
>
> Thanks for the reply.
>
> Do you have an educated guess on how much plus and minus travel would be

needed for a slotted motor mount from the given center distance on the
charts. Bridgeport sized machine.

>

You need much more than the tension adjustment range, to allow you to
slip the belt over the flange on the pulley.
1/2" slide on the motor usually is needed to allow the belt to be
placed. Probably 1/4" travel in the other direction will allow for any
reasonable belt stretch.

Jon





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