BTT Octopus (main MCU)
Warning
This configuration may not work with the BTT Octopus Pro.
Max filament units: 4
MCU Name: main
main MCU
This configuration is a main MCU configuration, meaning that your printer should already be running off a BTT Octopus and you don't need to purchase one.
BOM
Per filament unit:
1x TMC2209 ($7 each)
For each filament unit, purchase the following:
| Name | Quantity | Price | Link | Notes |
|---|---|---|---|---|
| NEMA17 Stepper Motor | 1 | $9.99 | Amazon | You can use a pancake stepper if you want, but it will have less torque |
| MK8 Metal Extruder | 1 | $9.99 | Amazon | Alternatively, you can use this Dual-drive MK8 based extruder |
| PTFE Tubing | 1 | $8.99 | Amazon | You likely won't need this for every unit, as this is usually too long for only one unit |
Wiring
Route the wires from the NEMA17's to the controller board. Follow this table to determine which port to plug the motors into:
| Filament Unit # | Motor Port |
|---|---|
| 0 | MOTOR7 |
| 1 | MOTOR6 |
| 2 | MOTOR5 |
| 3 | MOTOR4 |