Re: [CAD_CAM_EDM_DRO] 4th axis rotary table setup

Hi Mark,

You might want to add a step multiplier to the G201, making it a G210.
Then you can run 1/2 step, and get 400 steps/deg, or 90 x 400 = 36000
per 360 deg, or 100 steps / deg. The step multiplier gives 1:1, 1:2,
1:5 & 1:10

I run my Sherline rotary at half step (1:2), so 200 * 2 * 72 = 28800 per
360 deg, or 80 steps / deg.

Alan KM6VV


markpowerplus wrote:

>
> Morning all!,
> I have a rotary table which is geared 90:1 that i want to use for my
> 4th axis. should I direct couple this or gear it say 2:1 . The reason
> I ask this is i am concerned that if i use a Gecko 201 to drive this
> with a 200 step motor then i will have something like 18,000 steps
> per table revolution or 180,000 with the micro stepper and double
> that geared ( have i done my sums correctly?)i doubt that my computer
> could cope with this! What do others do?
> thanks in anticipation
> Mark