CAD CAM EDM DRO - Yahoo Group Archive

Re: EMC and Angular Axis to run rotary table

on 2003-10-18 08:16:40 UTC
> > now my 4th axis ini parameters are as follows:
> >
> > ; Fourth Axis
> > [AXIS_3]
> >
> > TYPE = ANGULAR
> > UNITS = 0.03937007874016
> > HOME = 0.000


How did you get the units ?
Assuming you are using degrees and not some other unit....

If you have 360 degreees motion and the table turns 10 degrees per
revolution ??

a direct drive stepper on the shaft, no microstepping.

36 turns per revolution times 200 steps per revolution = 7,200 steps
per 360 degrees or 0.05 degrees per step.


= = = = = = = = =

Here is a simple list of angular numbers for my spreadsheet.

360 table units (circle)
10 degrees per shaft revolution
36 handle revolutions per one table rev.
200 motor natural steps
1 microsteps (1= no microsteps)
200 actual; motor Step Per Rev
7200 steps per table rotation
360 table units (circle)
20 steps per degreee
0.05 degrees per step

That comes out to 0.05 degrees per step.
everything else being equal, an using your number, I get that you
would need

7.874015748 degrees per shaft revolution

Hope this gives you some point of reference.

Dave

Discussion Thread

Asim Khan 2003-10-17 23:33:18 UTC EMC and Angular Axis to run rotary table balsaman_cnc 2003-10-18 07:21:09 UTC Re: EMC and Angular Axis to run rotary table turbulatordude 2003-10-18 08:16:40 UTC Re: EMC and Angular Axis to run rotary table Asim Khan 2003-10-18 08:49:38 UTC Re: EMC and Angular Axis to run rotary table Damon 2003-10-18 17:48:54 UTC Re: EMC and Angular Axis to run rotary table Asim Khan 2003-10-18 21:40:53 UTC Re: EMC and Angular Axis to run rotary table Paul 2003-10-19 08:03:20 UTC Re: [CAD_CAM_EDM_DRO] Re: EMC and Angular Axis to run rotary table