Barbell or dumbbell lock-jaw collar

Barbell or dumbbell lock-jaw collar inner dia 29 mm padded with 2mm rubber pads to suit 26mm bar.
All components should be printed from PETG or ABS with support everywhere and orientation as is. Infill 35% is enough on all parts except "clip" which should be 50%. Layer height 0.2mm, shell thickness 1.2 mm, bottom/top thickness 1.2 mm except "clip" part which should be 2.4mm.
For axle hole 2mm dia I cut ordinary nail to desired length, and for 3mm hole I cut two pieces of M3 threaded rod around