Thingiverse user Studiokubuz recently uploaded a Printable Dial Indicator and I just had to try it out. A 3D printed machine with a 3D printed spring and 3D printed gears? Yes please. Unfortunately in the end it looks the part, but doesn't really work at all, but it still has a lot of potential.
I hope this project starts working 100%. Not that I particularly need a feeler gage, but 3D printed machines excite me. When people talk about the 3D printed gun project my take on it is: Okay, yes, gun, killing tool. Keep out of hands of children. Oogy-boogy. But there's a spring in there generating enough energy to hit a firing pin! If that's possible then what other tools can be reliably made? NASA is sending a 3D printer to space. Forget replacement panels, this opens up the possibility of real tools being made. I wish I had time to explore this more, I'd make a whole workshop of 3D printed tools.
By the way, I'm currently 4th in the MyMiniFactory contest. I'm losing to a chess set that you can't even tell what the pieces are supposed to represent. Listen, I don't mind if I lose, but I don't want a chess set to win that you can't even use for playing chess! Even if you've already downloaded my models, even if you don't have a 3D printer, download them again. I promise I'll make it worth your while.