CAD CAM EDM DRO - Yahoo Group Archive

Re: Quadrature Divider ?

on 2009-01-05 23:43:04 UTC
Alan,

Your best bet is to go to digikey.com and order yourself up some
AMT-102 encoders. They are $29 in single quantity and the cover every
possible resolution you have in mind from 48 lines per revolution to
2,048, all DIP-switch settable. They are terrific encoders and we have
tried them. Best thing since sliced bread.

Mariss


--- In CAD_CAM_EDM_DRO@yahoogroups.com, "alanrothenbush" <alan@...> wrote:
>
> I got a good deal .. sorta .. on half a dozen servo motors, intended
> for use with some Gecko 320s (already purchased).
>
> The "sorta" part comes from the fact that I must have misread the
> part number; they do not have 250 count encoders, as expected, but
> 2,000 count encoders, meaning that even with my fastest computer,
> they run way too slow.
>
> Now I could just purchase some Gecko G902s but I'm afraid that's not
> really an option for budgetary reasons; this is just for hobby use.
>
> Some of the options I'm considering are
>
> . a poor man's pulse multiplier, kinda like a G902, only without the
> PLL fanciness; maybe a PIC that outputs 8 pulses for each incoming
> step pulse. Easy, but I wonder how important it is that the pulses
> be nicely spaced ...
>
> . a quadrature divider .. maybe a PIC doing a bunch of counting.
>
> (Here's a question .. would a flip-flop wired as a divide-by-two work
> as a simple divider ? And if so, couldn't a guy cascade three of
> them for a divde-by-eight ?)
>
> . one of the USB pulse engine options like the ncPOD or
> SmoothStepper
>
>
> Any thoughts, opinions or circuits gratefully accepted.
>
>
> Alan
>

Discussion Thread

alanrothenbush 2009-01-05 17:33:47 UTC Quadrature Divider ? Mariss Freimanis 2009-01-05 23:43:04 UTC Re: Quadrature Divider ? Yahoo 2009-01-06 07:06:07 UTC Re: Quadrature Divider ? Jon Elson 2009-01-06 09:18:07 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Alan Rothenbush 2009-01-06 09:43:10 UTC RE: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Alan Rothenbush 2009-01-06 10:00:12 UTC RE: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Yahoo 2009-01-06 10:54:03 UTC Re: Quadrature Divider ? Alan Rothenbush 2009-01-06 15:24:19 UTC RE: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Peter Reilley 2009-01-06 20:39:18 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Tom Hubin 2009-01-06 22:54:53 UTC Re: [CAD_CAM_EDM_DRO] Quadrature Divider ? henrikolsson2001 2009-01-07 08:52:51 UTC Re: Quadrature Divider ? Peter Reilley 2009-01-07 11:06:43 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? Drew Rogge 2009-01-07 11:17:54 UTC Re: [CAD_CAM_EDM_DRO] Re: Quadrature Divider ? wildhorsesoftware 2009-01-08 17:38:31 UTC Re: Quadrature Divider ? Tom Hubin 2009-01-14 07:21:56 UTC Encoder Dithering Specs Jon Elson 2009-01-14 09:53:20 UTC Re: [CAD_CAM_EDM_DRO] Encoder Dithering Specs Roland Jollivet 2009-01-14 15:24:48 UTC Re: [CAD_CAM_EDM_DRO] Encoder Dithering Specs Tom Hubin 2009-02-27 14:39:03 UTC WTB small 3 axis CNC for microscopic 3d inspection Jack McKie 2009-02-27 15:10:48 UTC Re: [CAD_CAM_EDM_DRO] WTB small 3 axis CNC for microscopic 3d inspection Jack Mc Kie 2009-02-27 15:43:21 UTC Re: WTB small 3 axis CNC for microscopic 3d inspection