Two component adhesive dispensing gun
thingiverse
It's not easy to get good results with nice details, but it feels great working with them. Printed PETG at 0.15mm with partial supports to achieve nice gear quality on the push mechanism. Update: I cracked my tooth when the adhesive was too old, so I redesigned the print for an easier-to-use pusher mechanism using two pieces instead of one. This allows me to print a robust tooth onto the gear on the side.
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