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Old 23-04-2018, 01:53 AM
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redbeard (Damien)
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Join Date: Nov 2010
Location: Adelaide
Posts: 558
Quote:
Originally Posted by AndrewJ View Post
Gday Damien

I have made several of them to drive my Meade microfocusser.
Some used cheap Picaxes, some used std PIC and some used pure passive ICs.
Focus at any speed or direction with only one centre click potentiometer.
As its only driven by PWM, no complicated driver chips are required.

Andrew
Hi Andrew,
Good one, yep, there's definitely a need for them.

It all started by me wanting to add the focuser to my ETX 125. I had the adapter for the back of the ETX to 2" so added a 2" ring and the focuser. Might have to put the ETX into EQ mode.

Finished it today. I'm going to post an IIS article with it soon just for a laugh. Couldn't help myself and built a Windows app to control it as well. It even works with the Meade classic Ascom focuser driver which I tested with a couple of astro apps. Hand controller is standard jiffy box ugly with yes the ugly buttons too.

Good to hear from you.

Cheers,
Damien
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