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Upgrading to Klipper 3D

Klipper

3D-Printer Firmware More info: Klipper Documentation

Mainsail

Mainsail Documentation

Guides

Klipper Installation And Update Helper

Current Setup

  • RPi 2
  • MKS SGEN 1.0 (No L)
  • TMC2208
  • 12V PSU

TMC Stepper Driver Configuration

  • Driver: TMC2208 V1.2

Aliexpress TMC2208 V1.2

Aliexpress MKS SGEN V1.0

(CFG or UART pins)

MKS SGEN L V1.0 Pins MKS SGEN V1.0 Pins MKS SGEN V1.0 Schema

Klipper TMC Driver Documentation

Config Reference

Configuration

[printer]
kinematics: delta
max_velocity: 99999
max_accel: 7500
[tmc2208 stepper_a]
uart_pin:
run_current:
[stepper_a]
[stepper_b]
[stepper_c]
[extruder]
rotation_distance: 1.28

Todays Conclusion

  • PrusaSlicer v2.4.2 has sufficient standard settings to print out of the box.
  • Upgrade the SGEN from V1.0 to SGEN-L or better MCU to gain access to UART or SPI.
  • Upgrade drivers from TMC2208 to at least TMC2209 to gain access to stallGuard. NB! Verify that current can be adjusted via config.
  • Manually adjust the current to the extruder (it was running a bit hot, the extruder deformed)
  • Design a new extruder. Or, buy one from Bondtech. However, buying one implies that the stepper motor needs to be replaced aswell. (Currently using a Nema 11 with 27:1 gearbox)
  • Upgrade PSU to 24-48V (36V), implies that the MCU and drivers can handle the voltage.