RE: EMC Real world

[Ethan Vos <ethan-at-forward.ca>]

OK:

Ball screws rated for 10 inches per second
5 rev per inch

therefore 50 rev per second should get me where I want to go.

The Zeta drives are set to 5,000 steps per revolution. The motors are rated for 200. 

Ethan

-----Original Message-----
From:	Ray [SMTP:rehenry-at-up.net]
Sent:	Monday, September 10, 2001 4:15 PM
To:	Multiple recipients of list
Subject:	Re: EMC Real world


On Mon, 10 Sep 2001, you wrote:
> OK, I have everything set up to do what I want, now I need to connect to my 
> machine.
<s>
> In terms of stepper drives, am I better to use the existing Compumotor Zeta 
> drives or change to something like the Gecko? 

If the Zeta are set up and tuned to run those motors and that load, I'd
stick with them.  If one burns out that's a different story.  There is also
a pulse rate problem that may influence your decision.

> I need the stepper to receive 
> 5,000 steps/rev and 5 rev/inch so 25,000 steps/inch. My target is 10 inches 
> per second so I need 250,000 steps/sec.

IMHO - This 250,000 steps/sec will be a non-starter.   The emc is
advertized to 5k and some folk get 3-5 times that.   Even the thought is
boggling.  Could you describe your machine, motors, gearing, feedback,
and such. 

Ray