Upgraded hotend fan duct for Neptune 4 pro
by Marvdog · via Printables
| Format | STL |
| Category | Art |
| License | CC BY-NC-SA |
| Triangles | 42.3k |
| Uploaded | Apr 3, 2026 |
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Description
Recently upgraded the printer with a tz2.0 hotend (upgraded hotend on aliexpress) and this beautiful V6 nozzle. Which as it happens, is slightly longer than a TZ2.0 nozzle, and Neptune's proximity sensor has only ~4mm range, so the nozzle now runs into the bed. The new model mounts the sensor closer to the bed, and the duct length has been shortened, so the bend puts less tension on a 100mm wire for the 4010 fan. The side pod clicks in easier now as well. Printed this out of ABS ( I've done so on the Neptune 4 pro with a cardboard box), so it stands up to heat better. Print in the same orientation as the original fan duct with the fan opening up
Originally published on Printables