Heat-set threaded inserts in 3D prints, technique that works
Posted: Tue Jul 07, 2026 11:00 pm
Tired of stripped screw holes in printed enclosures. Switched to brass heat-set inserts. Game changer, pero technique matters.
What I learned:
Cheap M3 inserts from Lazada (100pc ~PHP 250) work as well as branded.
Anyone using inserts? Tips for tiny M2 inserts (I keep melting past them)?
What I learned:
- Hole diameter: slightly smaller than insert OD (insert 4.6mm = hole 4.0mm)
- Soldering iron at 200C, dedicated flat tip for inserts
- Press slow, let plastic melt around, do not force
- Keep insert perpendicular (crooked = strips or leans)
- Push flush, then a hair below surface
Cheap M3 inserts from Lazada (100pc ~PHP 250) work as well as branded.
Anyone using inserts? Tips for tiny M2 inserts (I keep melting past them)?