Hi Marv,
get on the webpage and check post 45509.
that is the best way to start with the engineering and math that will
let you arrive at your answer.
Steppers are much easier to use, and have a simple work envelope.
Servo's offer some pretty strong motors for a smaller space.
With your note about not having any $$ involved, I think that most
stepper guys want to move up to servo's and I have not heard of any
servo guys trying to move to steppers. Just my 2 cent observation.
Dave
--- In CAD_CAM_EDM_DRO@y..., Marv Frankel <dcdziner@p...> wrote:
Tim,
I presently have no $ invested in any equipment other than
the mill.
Why would the servo/G320 scenario be better for me.
Marv Frankel
----- Original Message -----
From: "Tim Goldstein" <timg@k...>
To: <CAD_CAM_EDM_DRO@y...>
Sent: Sunday, November 03, 2002 6:20 PM
Subject: RE: [CAD_CAM_EDM_DRO] Re: Stepper motor speeds
Sounds like I was thinking of someone else's project. Seems to me
the
sizes I have heard used successfully with a mill that size is 800+
in/oz. I would probably want to use about an 1100 in/oz motor or
bigger.
Definitely in the range where if you don't have money invested in
motors
or drives you are likely to get by for less and get better
performance
by going with servos and Gecko G320/340 drives.
Tim
[Denver, CO]
-----Original Message-----
Tim,
I guess it's my engineering background that makes me
want to plug all the components into a formula, and come out
with an exact answer. The mill I'm going to convert, is a
full size Enco, about the size of a Bridgeport, 1 1/2 HP
variable speed motor, 8" X 36" table, and driven by a VFD.
I'd rather oversize the motors, and have some torque to
spare, but I was just trying to save a little space on the
quill feed, by using a slightly smaller motor. Thanks for the
direction.
Marv Frankel
Los Angeles
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