Re: [CAD_CAM_EDM_DRO] I'm curious

I was talking about dropping a >>>>SERVO<<<< drive in place of a stepper
drive.

In any event you can not expect a micro stepping drive of any type to be
extremely accurate. It is the nature of the motor and controller.
If you want maximum resolution with good repeatability you need to look
as servos as opposed to steppers. Or select a reduction ratioo for the
stepper that keeps things in spec.

The thought processes here revolve around systems with high performance
and low cost that can implement the desired control. In any event the
is the ..._EDM_DRO group so you might want to consider the CNC and
motion control groups. As to answer to question, the responses
require a bit of digestion. You shouldn't be surprised though when
people try to realign you thinking.

Thanks
Dave


yahoo@... wrote:

>
>I'm not picking on Gecko specifically, I said; "Gecko Type" only because
>that's what I've seen talked about in CAD_CAM_EDM_DRO.
>
>And I couldn't just "Drop one in" because it wouldn't drive at the
>resolution I require.
>Some said; "there's a reason it's on eBay". I guess they were referring to
>obsolete drivers, well the S and Zeta's certainly are not. Even the obsolete
>A and M Series drives far outclass the Gecko type drivers that seem
>prevalent here (A series only microsteps 25000).
>
>I guess my curiosity really had to do with understanding the thought
>processes here.
>
>.... I was about to formulate another question, but I don't think it get
>satisfactory response here.
>
>Jack
>
>-----Original Message-----
>From: CAD_CAM_EDM_DRO@yahoogroups.com
>[mailto:CAD_CAM_EDM_DRO@yahoogroups.com] On Behalf Of David A. Frantz
>Sent: Wednesday, July 20, 2005 4:30 PM
>To: CAD_CAM_EDM_DRO@yahoogroups.com
>Subject: Re: [CAD_CAM_EDM_DRO] I'm curious
>
>In any event I suspect that you have not taken a good look at
>GeckosDrives web site. They have more than just stepper drives, you
>could just as easily drop in one of their step and direction servo
>drives. Either way Gecko is not the only game in town with respect to
>step and direction drives.
>
>In any event negativity plugs up the forum. Success with these sorts
>of home projects requires positive thinking and a williness to try new
>things.
>
>Dave
>
>
>
>
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