5. Hotend Module
Overview
We're ready to install the hotend. The hotend, fan, thermistor, and heater cartridge are all meant to be removable as once piece, so we assemble them first.
Parts
| Part | Qty |
|---|---|
| Hotend Module | 1 |
| Phaetus Rapido Hotend | 1 |
| 40mm x 10mm axial fan | 1 |
| M2.5 x 8mm SHCS | 4 |
| M3 x 6mm SHCS | 4 |
| M3 x 12mm SHCS | 4 |
| Lock washer, M3 | 4 |
Steps
Tip: Fan Direction
The 40mm fan should blow towards the hotend. A fan's airflow direction is usually the side with the manufacturer's sticker on it.
- Align the hotend's mounting holes with the Hotend module. Hotends with asymmetric heater blocks like the Dragon should have the longer/larger side facing forward.
- Secure the hotend with four (4) M2.5 screws.
- Install the hotend's heater cartridge and thermistor.
- Place the 40mm fan on the hotend mount with the airflow directed towards the hotend. Rotate the fan so that the wiring trails to the top right edge.
- Use four (4) M3 x 12mm screws to install the fan.
- Use a zip tie to secure the fan, heater cartridge, and thermistor to the zip tie anchor at top right.
- Place the hotend assembly into the EVA 3 Front.
- Secure with four (4) M3 x 6mm screws and lock washers.