That’s a neat design! and a tough print! Congrats on pulling it off.
I’ve been using GPTs younger cousin Co-Pilot. It’s pretty good but not as good as the hype-merchants will have you believe. I’ve caught it getting stuff seriously wrong on “serious projects” (an electronics prototype). It saved me a lot of “Google time” but you need to be aware that it’s only as good as the collective stuff that’s out there… and that stuff may not be very good.
After retirement I miss the rigor of discussing ideas with peers. Co-Pilot provides SOME of that but in the common settings it just praises your every idea even if its a bad one.. I often ask it to tell me if I am wrong.