CAD CAM EDM DRO - Yahoo Group Archive

Re: [CAD_CAM_EDM_DRO] Re: PWM signal to step/direction signals

Posted by Howard Bailey
on 2002-10-09 18:39:15 UTC
Snip some good information

>
> What flops is there is no feedback from the stepper so you have to
> center the device some way at turn on, say by seeking a limit or
> center spring etc.

Good point that I failed to realize so far. It shouldn't be too much of a
problem since it should return to an index position upon shutdown due to a
constant spring force. I will definately keep this point in mind.
>
> Otherwise you could use a DC gear motor, power amp and follow up pot
> skeebed into an old servo's guts .
>
> Brian
> BSP
>
Thanks for the feedback, Brian.

Best regards,

Howard Bailey

Discussion Thread

Howard Bailey 2002-10-08 12:27:01 UTC PWM signal to step/direction signals dakota8833 2002-10-08 18:10:33 UTC Re: PWM signal to step/direction signals David Kott 2002-10-08 20:29:47 UTC Re: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals Howard Bailey 2002-10-08 23:20:47 UTC Re: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals JJ 2002-10-09 04:33:23 UTC RE: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals Alan Marconett KM6VV 2002-10-09 10:50:14 UTC Re: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals Brian Punkar 2002-10-09 18:10:44 UTC Re: PWM signal to step/direction signals Howard Bailey 2002-10-09 18:39:15 UTC Re: [CAD_CAM_EDM_DRO] Re: PWM signal to step/direction signals David Kott 2002-10-09 19:52:07 UTC Re: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals JJ 2002-10-10 05:37:13 UTC RE: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals j.guenther 2002-10-10 06:08:37 UTC RE: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals Tim Goldstein 2002-10-10 11:35:45 UTC Re: [CAD_CAM_EDM_DRO] PWM signal to step/direction signals