>>9222811Ah ok, I guess you're using an sla/dlp printer then? One thing I've been thinking about but have been to cheap to try is to use some spray-on/dipping rubber on the balls to give it a more durable finish. Then you might get a problem with the thickness but I feel you'd be able to get somewhat consistent with it. If you don't have one I'd really recommend a pair of digital calipers, it makes it a lot easier to spot small errors and if they're consistent across prints you can modify the model to compensate.
>>9222892I'll have to look up those joints, might be worth an investment.
>>9223333I know the feeling. Personally I've been using the free version of Fusion 360 for this project and It's been working pretty good since it's mostly simple geometric shapes. But first I'd just sketch up how you think the transformation might work(if you're like me you'll realize everything is fucked later so don't be afraid to change it) then since you kind of a have a reference I'd try to draw up the parts/figure on some graph paper to get a feel for the size of everything. Is it this concept you're thinking of or the comic one?