开云体育

Hi Tim,

I had thought Servo's had all you said, but that they were a LOT
harder to implement.

There is an interesting link here :


top of the page


Dave




--- In CAD_CAM_EDM_DRO@y..., "Tim Goldstein" <timg@k...> wrote:

Much better performance (faster rapids, higher acceleration) and

likely

less cost. Servo motors do not need to be as large as steppers

because

they do not have the same torque drop off. They also can put out

very

high peak torque for short bursts. When you combine that with large
servo motors frequently being less money than large steppers it

becomes

an easy decision. Less money, more performance.


Tim
[Denver CO]

-----Original Message-----


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

Dave,

Servos traditionally were harder to implement due to greater wiring
complexity, add-in servo cards, limited software choices, many more tuning
parameters, cost) when they were only the traditional servo amp with motion
card. For the hobbyist it was pretty much EMC with a Servo to Go card. Great
performance if you can pay the price and get over the learning curve. Now
that Gecko has made the G320/340 series drives available servos have become
about the same cost as steppers and only slightly harder to wire and tune.
Pretty much you set them up just like you would a stepper as that is how the
controller program sees them. So you can use any step and direction program
you want, don't need a $800 motion card and only have to connect additional
wires for the encoder to the drive.

In my view it has opened a whole new level of performance for us hobby class
people.

Tim
[Denver, CO]
Sherline at Deep Discounts
www.KTMarketing.com/Sherline