I separated this out, for ease of using it. (gwest) Original: https://github.com/lhndo/LH-Stinger/tree/main/User_Mods/MMU/Stinger%20Pico%20MMU%20-%20%40LH
Wiki: https://github.com/lhndo/LH-Stinger/wiki/Pico-MMU
Filament: PLA, PETG ,ASA etc.
- 0.4mm nozzle, 0.4mm line width, 0.2mm layer height (idler arms at 0.12mm if you can print well)
- 3 perimeters, 95% infill
- It is highly recommended to use the print settings included in the Orca files, and change your speeds and acceleration (includes per object settings and painted seams)
- Make sure your extrusion multiplier is spot on. The tolerances are very small so print some parts and check for fitting.
- Some slight post processing might be needed.
- The Idler arms have to be printed top face down on a smooth sheet (not textured PEI)
- You can improvise by taping a temporary piece of glass, fr4, etc. over your printbed
| Item | Quantity |
|---|---|
| EMAX ES3004 Servo (EMAX) | 1 |
| Nema 17 (max 40mm length) | 1 |
| Steel D-Shaft 5mm x 72mm or 90m for 4 lanes | 2 |
| Bearing MR115 | 4 |
| Bearing MR83 | 3 (4)* |
| BMG Drive Gear (with grub screw) | 3 (4)* sets |
| PTFE Tube 4mm OD, 3mm ID | 1 |
| ECAS 4 Collet | 6 (8)* |
| Belt GT2 ** | 25cm |
| Heat Insert M3 5mm (D) x 4mm (L) | 20 (23)* |
| Screw Cap Head M3 10mm | 3 |
| Screw Cap Head M3 22mm | 2 |
| Screw Cap Head M3 30mm | 2 |
| Screw Cap Head M3 8mm | 2 |
| Screw Countersunk M3 10mm | 12 |
| Screw Countersunk M3 16mm | 4 |
| Screw Countersunk M3 8mm | 1 |
| Screw Grub M3 6mm (optional) | 2 |
*Four lane version quantities
**The belt width used is non-standard ~4mm, which can be easily cut with scissors from a 6mm one
Notes:
You will also need a free stepper driver on your mainboard, or an ERCF EASY BRD or EBB 42 board (connected though USB, Max31865 not required)
A filament hub and a toolhead filament sensor is also required
For support please join the LH Stinger Discord