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Old 09-12-2019, 12:20 PM
Jasp05 (Aaron)
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Jasp05 is offline
 
Join Date: Nov 2016
Location: Rockhampton
Posts: 226
Arduino Focuser - Skywatcher Evostar 72ED

Hi guys,

Just thought I'd share my design for an arduino focuser on my 72ED scope.

I've added a few pics of the 3d printed bracket and spur gears. (the stepper motor isn't bolted down. need a few longer bolts)

Still trying to decide whether to use the arduino focuser pro 2 projects code which allows for temperature compensation etc or just make it a simple focuser that I can control from the pc - basically a forward or reverse button type thing.

Will post some schematics of the pcb design once I have that finalised. planning on having it use an arduino nano or pro mini and the uln2003 breakout board. essentially make it so you can just plug the 2 boards into their respective sockets on the pcb and have it work. Should be less than $20 worth of parts for remote focus control.

I know a few people on this forum use the same scope, so if your interested in plans/ files to make one send me a pm.
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