Re: Gecko 210s l- limited rapids

--- In CAD_CAM_EDM_DRO@yahoogroups.com, "theokspindoctor" <mail@t...>
wrote:

> Sigma motor, 9 amp, Gecko 210 set at 200 steps per revolution with

7

> amp max power. Motors wired in half winding mode. There is no
> excess mechanical load. Power supply 75 volt 16 amp. 2:1 reduction
> with 5 pitch lead screw. Using Galil motion control board. Still
> only about 30 ipm maximum before stalling.
>
> Everything seems to be working fine at lower speeds. How can I
> pursue the possibility of getting some better axis motor speeds

from

> these drives?
>
> I expected even greater rapids than the 100ipm the Boss 6 had

before

> the retrofit, according the sales pitch I was given...
>

30ipm x 5 pitch leadscrew = 150 x 2/1 ratio = 300 rpm on the motor
300 rpm x 200 steps per rev.= 60 000 steps per minute / 60 seconds
= 1000 steps per sec or 1k steps.
this is far less then the gecko's are capable of.
what is the rated rpm of these motors?