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Old 04-12-2018, 03:28 PM
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pmrid (Peter)
Ageing badly.

pmrid is offline
 
Join Date: May 2008
Location: Cloudy, light-polluted Bribie Is.
Posts: 3,665
G'day David.
Long time between shouts!
I'm sneaking up on this project very slowly and carefully. I thought I was being adventurous when I bought a Raspberry Pi. But Arduino is something else again. I've ordered the core elements most people seem to recommend - an Arduino Leonardo, a L298P, LCD1602 and a Temp Sensor DS18B20. For the massive investment of US$32.95. Buying locally would have been more than double. But while I wait for those bits to arrive, I am also expecting the imminent arrival of a couple of motors and control boards.

What eludes me for the moment is the mechanical issue of how to get the motor to drive my focuser - I ought to have bought a geared motor I suppose but that's definitely being wise after the event. Do you use belts or gears to drive your focuser? And how did you determine the appropriate gearing ratios?

Peter
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