[bojan]

Recently, I designed 3 types of PCB's....
Two of them are Stepper motor driver interfaces, to be used with Mel Bartel's software (or equivalent). One can handle 3A, 12-24V, the second one 200mA, 6~12V (for smaller steppers). Both have field rotator driver implemented, the 3A model has keep-alive timer with relay (not to overheat the motors when software is not active, which cam happen in certain configuration).
The third PCB can be used for any type of small equatorial mount (even barn door), as it is designed to drive one stepper for tracking, and another stepper is for declination axis manual movement (with command handpad). The processor used for this one is Motorola 705KJ, I have couple of OTP's and I would be prepared to tailor the firmware for the specific mount (the rotational speed can be different for each mount design) and to program them. Power handling for this third board is also 200mA, 6-12V.
Since the setup cost for one prototype is quite high (~400AU$ for A4 size panel), I was wandering if anyone might be interested in something like this, so we can share the cost. Or, perhaps somebody on the forum can manufacture the PCB's from Protel files? Personally, I am interested only in PCB's...
I am willing to share all the technical details (schematics, dimensions, parts lists etc) if there is a wider interest for something like this on the forum.
I am also open to suggestions and change the design, if the new proposal is acceptable.
Cheers,
Bojan