# 3D channel-letter printer: heat nozzle to 200°C before removal

- Source-Date (SAST): 2024-10-28 11:35
- Dest: both
- Review-after: 2027-02-28
- Status: current

## Facts

- Before taking the nozzle out of a **3D channel-letter printer**, heat the nozzle to **200°C**.
- If you pull it cold, it can snap inside: aluminium shrinks more than copper.
- If it snaps inside, that part has to be replaced.