Summary

Gun for codan 20cc syringe (rs components article number 768-2328) used as glue dispenser.

Instructions

no raft
Infill 40%
shells 3
layer height 0.2mm

The parts pusher, plunger and détente (trigger) don't need supports

I suggest to print the "gachette" on its side (the through hole axis parallel to Z printer axis) to increase its strength

Bill of material :
1x compression spring L0=32mm Di=6.7mm thread=0.61mm (a longer spring might be better; 37mm)
1x compression spring L0=16mm Di=3.7mm thread=0.4mm
1x rod Dia 3mm L 50mm or 2x M3x25mm screws
1x rod Dia 3 L 15mm or 1x M3x15 screw (head to be cut)
1x rod Dia 2.5mm L10mm or 1x M2.5x10mm screw
1 of each printable part

20ml / 20cc syringe gun