Articulated arm - super grip joints (16mm joint ball)

Info: alternative joint shape for articulated arm with 16mm joint balls by Jack I had to use 2 pliers tightining the original joints securely (when the arm is longer and it has to carry something) and I hated that so here it is, 16mm ball joint parts where you can tighten it much more just with fingers as with original, it is good to oil the threads before usage Print instructions: no supports no brim 0.2mm layers, 0.4mm nozzle PLA Assembly: oil the threads little bit (to reduce friction - to be able to tighten the joint more easily)