What a beautiful model! Congratulations to Engineezy for such a great print. It does work perfectly (working on the clock as we speak).

A few recommendations which could help those building this model (and which I would have liked to know before...)

• The followers DO need support. I printed first at once the built plate but it did not have support for these followers in the full build.
• be VERY careful when inserting the followers - the video is mentioning a graphic for this but it was not in the files I got on Thangs and it would have been very helpful (I had to rewind the video a lot to catch every details!!). I found out later that this graphic is in the images on the side so make sure to look at all of them (scroll down the images on the right...).
• even though there are 2 pins you only need one clamp for each 7 racks
• everything printed perfectly for me but the detent was really hard to fit with the shaft (though it looks very easy on the video so not sure if there is a problem or if it is just me but I did struggle on this)
• When you insert the shaft with all the cames, the detent as to FACE FORWARD (meaning toward the segments). It is mentioned quickly in the video but it is hard to catch and I did it wrong and there is no way back once in place.
• I'm working on adding the servos and could not find a lot of information int the folder but the code. You can find much more info on Engineezy site at https://engineezy.com/blogs/project-details/connecting-4-servos-and-an-rtc-module-to-arduino-nano
  hope this will help others have fun this is really a great model and worth any cents of it!! Again a big thanks to Jay. Still working on the clock but for those looking into this you need a 180° RG995 servo (not a 360° which could be counterintuitive as you wish you could continue to roll through numbers continuously but you have to work based on angle increases programming the servo which means you need to rewind at zero once you've reached 9).

In case anyone else was wondering -- download file has been updated with the side-by-side baseplate, dots for the clock, and example arduino code

I realize this isn't a solution, but for what it's worth, I first printed this on an older, homemade printer and I had all sorts of fitment issues. I've always had a bad elephant foot on my prints, so it took a lot of cleanup and modification just to get them to go together. I was using a socket and hammer to get the cams on the shaft lol.

Tried it again on a Bambu x1, like he uses and everything went together like butter. The cams slid on the shaft with no resistance whatsoever.