Electronic Focuser for Celestron 127 MAK

thingiverse

This one took a bit of effort, but it's finally done. The scope no longer wobbles when I'm focusing! The speed of the focuser adjusts from 15RPM down to zero, And the Controller shuts off with a click, so you know it's really off. No supports required FWIW, I used PLA+ You'll need: 1. One of these: https://www.amazon.com/gp/product/B00EDMIH7E (Make sure that you get the 15RPM version - it has more than enough torque). 2. One of these: https://www.amazon.com/gp/product/B01FA9UNMA (You'll use this momentary switch to replace the switch in the next item. Take a picture of its wiring and use it to wire this one up!). 3. One of these: https://www.amazon.com/gp/product/B071H2YQG5 (Note that the switch isn't a momentary switch - you really want a momentary switch!). 4. A Motor Adapter 5. A Dovetail Motor Mount 6. Two pieces to make the motor controller box 7. A 5mm bolt to hold the Motor Adapter on the motor shaft 8. Some bolts to mount the motor 9. A bolt to hold the Mount on the Dovetail of the scope I added a little hook to the Dovetail Motor Mount so I can hang the control box when I'm not using it. That way, I don't have to worry about cord wrap. Your choice for cables and connectors - I used RCA plugs and connectors to connect the control box to the motor and standard 12v connectors (that work with 12v power bricks) for the power connectors. Also, I use an external 3S LiPo battery for my GoTo mount and simply made a Y adapter to run both the GoTo and this focuser.