Converting a Celestron CGE mount #cge #celestron #c
The first thing to do is look through the Onstep showcase where several CGE's have been converted. One thing you will notice is that they are all different.toggle quoted messageShow quoted text
There is no programming per se, only configurations depending on the controller you decide to use and any sensors you may want to change. For example, retain the home/ limit switches or use something else.
The main issue will be space. Some of the CGE conversions required a bit of metal removal in the motor housings to fit things in when using nema 17 motors. All that I have seen required modification of the worm mount.
This is something that you don't probably want to do to a working CGE. But if you have a dead motor or motor controller board, you may have no choice if you can't repair them or find second hand replacements. A motor control board may be salvageable wirh a little electronic know how and ingenuity although it contains preprogrammed proprietary chips with firmware installed. Not much you can do if one of those us fried but it is typically something else.
Bad motors are the real killer since Pittman will not sell you one from what I have read and Celestron would charge you a small fortune even if they had any.
I was able to ressurect a failing RA motor on my CGE that was running slower than normal and throwing no response codes by simply disassembling and cleaning the crud on the commutator. If the windings are not open or shorted, you may be able to salvage to motor. There are often similar motors on eBay that either have the same gear reducer or even the same encoder. I bought 2 motors on eBay for a few bucks that had identical encoders (at least the electronic board).
I was considering the Onstep mod to my CGE but since ir is now largely repaired, I'm holding off.