I bought something like this digital display soldering iron for $12 and have been happy with it. No great loss (other than replacement time) should this puppy die on me: https://www.amazon.com/Liouhou

I'm intrigued by the photo of the RA gearbox. Is that two motors connected by a differential? I'm guessing that the one on the right would be a stepper for fast slewing, and the left one a servo motor

Although I liked the small size and price of the 28ByJ-48 stepper, I have given up on them as they have proven to be very unreliable. I've since replaced all my focusers with the 14HS10-0404S--not the

I hate to admit it, but that is one heck of a sexy-looking mount. And the price is phenomenal, considering other harmonic drive mounts on the market are ~$8K. How well it actually works may be another

The Skywatcher AZ-EQ6 Pro (and some other mounts) has this capability. Essentially, you crank the altitude screw until the RA axis goes vertical. But it doesn't use OnStep, does it?

Have you considered NINA or APT for your alignment needs? I don't use it, myself, but NINA has a polar alignment capability that allows you to adjust the mount to achieve polar alignment using plate s

One last piece of advice: don't bother with a finder scope, or even a red dot finder. Instead, learn how to use plate solving. And learn drift alignment in PhD2 if you don't have direct access to Pola

For that matter, has anyone used the AISIAIR (any version) with OnStep?

I was curious about the discussion about alt-az camera rotators, so Dr. Google led me to this website: https://telescopemount.org/alt-az-mounts-for-long-exposure-astrophotography-camera-rotators/ Inte

Many of us run our guiding with a program called PHD2 Guiding. Download it from https://openphdguiding.org/ and see if it is compatible with your camera. (You can set up the program to run with a simu

Anybody interested in making/selling copies of the circuit board (and maybe a parts kit)? My eyes are getting tired of the small display of my SHC, too. Or can the older ESP32 SHC (based upon SHC PCB,

See pages 8 (RJ Connectors) and 15 (Molex cables) of this document: https://onstep.groups.io/g/main/files/Documents%20and%20Guides/OnStep%20STM32%20PCB%20Kit%20Assembly%20Instructions.pdf This is the

It's probably happened to all of us at one time or another--can make for a wild ride!

#EQ3

Many of the OnStep configurations have provisions for an image derotator for use on alt-az mounts, for which I wonder how many people actually use. For me, filter wheel support is way more useful than

It sure would be nice if all the various 3D printable designs were in one place, along with a description of the stepper motor, connector, gear and belt sizes they are designed for. Having recently ac

You can build a complete OnStep system just for the focuser, but there are a number of projects on the internet that just use an Arduino Nano and a stepper driver and maybe a few other components. Che

Perhaps someone will kit this version?

Hi I've been using Astrophotography Tool through ASCOM quite successfully for controlling my OnStep systems, but just recently attempted to perform meridian flips using its automated sequence for the

Very nice!! I wish that this presentation had been available when I started my journey through the OnStep universe.

#EQ5

Thanks for the hack--I'll be firing up the ol' drill press this morning...