Chess Robot bolts replaced with plastic pin

thingiverse

When building your chess robot, instead of M2.5 bolts, you can use plastic pins. All you need to do is glue them in place from another end. With these printable plastic pins you can make your gripper lighter, and better looking. I recommend to use 0.25mm nozzle and 0.1mm layer height when printing, because pins are very small, only 3mm diameter.