I finally have all the hard required parts. I am missing some feet, one ABS part broke, I don't have side panels on. But all of that should be printable at a slow speed, the first thing I'll do is print the part that broke, and that'll be that.

The mini afterburner is an exercise in BS. You take apart one perfectly good extruder to reconstruct it in a smaller place, and if anything binds you tell by trying to rotate a gear. Great, but if it doesn't rotate, you can't actually see any of the insides, so you can't really troubleshoot. You just take it apart, rebuild it, and hope it somehow got better. I did eventually get it working though.

The missing part now is electronics and software, the parts I'm 100% confident on as they are my jam. Mechanics has always been the hard part for me. I will probably only have one or two more entries in this project. One final one when it's actually done done, and then probably one reflectory one on what I would improve and whatnot. But as a summary, the mini afterburner probably has to be this way for size, but it's by far the most obnoxious part of the build.