possibility of replacing the encoders with one with index?
would there be enough room on the us digital discs to drill a couple holes
closer to the center for the purpose of limits?
On Wed, Sep 3, 2008 at 3:44 PM, sam sokolik <[EMAIL PROTECTED]> wrote:
> Well that sucks :) my plan is to make some inexpensive h-bridges and
> using one of the mesa cards we have to run it. 40v and a few amps should be
> easy. I am very surprised that it is sin/cos. Darn. I will keep tabs on
> this thread for sure .
>
> Thanks again.
> sam
>
> Jonathan Hancock wrote:
>
> Hi all - just a quick update on my Puma project.
>
> As a thought, the output from the original encoders is a sin/cos waveform
> (to see goto http://www.flickr.com/photos/[EMAIL PROTECTED]/ ). I will try to
> convert this low level signal into a ttl level square wave using an op-amp.
> The encoder has a pair of leds and photo sensors in.
>
> I am looking at using a pic adc to gain limit and homing signals from the
> pots on the back of the motors. This is looking quite promissing.
>
> I've installed ubuntu and emc2 on my machine and now baffled!
>
> Jon - am I sorting the correct things out to interface to your cards?
>
> I'll keep you posted...
>
> Jonathan
>
>
>
>
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