TMC5160Pro @48v on Octopus v1.1
Hello guys,
i have the RR afaik ready 2 run, but i cant wrap my head around it how i can activate stallguard2 for using sensorless homing.
the Motors drive in the right way, everything is cool until i hit home x or y it just keeps driving into the joints until it stops and says something like "No trigger on x after full movement". I was building now for the past 48h and tbh. im at the last step to finish this beauty and may brain is joghurt i believe by now.
Sensorless...cfg #
[stepper_x]
endstop_pin: tmc5160_stepper_x:virtual_endstop
position_min: -1
position_endstop: 0
homing_retract_dist: 0
[stepper_y]
endstop_pin: tmc5160_stepper_y:virtual_endstop
position_min: -1
position_endstop: 0
homing_retract_dist: 0
[tmc5160 stepper_x]
diag1_pin: ^!x_diag_pin
driver_SGT: -63# Stall guard threshold, this is your X sensitivity, to adjust, copy this section and override it in printer.cfg.
[tmc5160 stepper_y]
diag1_pin: ^!y_diag_pin
driver_SGT: -63 # Stall guard threshold, this is your Y sensitivity, to adjust, copy this section and override it in printer.cfg.
[gcode_macro RatOS]
variable_homing: "sensorless"
variable_sensorless_x_current: 0.4
variable_sensorless_y_current: 0.4
printer.cfg #
[stepper_x]
dir_pin: !x_dir_pin # Add ! in front of pin name to reverse X stepper direction
rotation_distance: 40 # 40 for 20 tooth 2GT pulleys, 32 for 16 tooth 2GT pulleys
[tmc5160 stepper_x]
stealthchop_threshold: 0
interpolate: False
[stepper_y]
dir_pin: !y_dir_pin # Add ! in front of pin name to reverse Y stepper direction
rotation_distance: 40 # 40 for 20 tooth 2GT pulleys, 32 for 16 tooth 2GT pulleys
[tmc5160 stepper_y]
stealthchop_threshold: 0
interpolate: False
5160...x.cfg #
[tmc5160 stepper_x]
spi_bus: spi1
cs_pin: x_uart_pin
#spi_software_mosi_pin: stepper_spi_mosi_pin
#spi_software_miso_pin: stepper_spi_miso_pin
#spi_software_sclk_pin: stepper_spi_sclk_pin
run_current: 1.768
sense_resistor: 0.075
driver_TBL: 0
driver_TOFF: 4
driver_HEND: 0
driver_HSTRT: 4
2 Replies
why not use an endstop? sensorless has to be tuned and unlike in other printer designs BOTH motors are used for X and Y movements so you have to tune two drivers at once
ambitious-aqua•10mo ago
because i have it running on the certesian printer and i am fine with it. and i have not bought endstops because i want to use the sensorless system.
solved.