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Rat Rig Community [Unofficial]•3y ago•

67 replies

Sugar Arrafel

Custom stepper motor configuration

I've Manta M8P v1.0 with Fysetc TMC5160 v1.2. And HRP-36-300 PSU for motors, i know that's better to use 48v, but i was not very sure in possibilities of Fysetc TMC5160.
I've all drivers TMC5160 on each motor.

Motors:
Rcoil: 1.69 Om
Inductance: 2.6 mH
Current: 1.8A
Trying to figure out how to properly make a profile for motors.
Can somebody explain me, please.

So
For example

[tmc5160 stepper_y]
cs_pin: y_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

#( Blank time setting (0-3; default: 2)
driver_TBL: 1

#( Typical values are in the range 3 to 8. Duration of slow decay phase (twice per chopper cycle))
driver_TOFF: 3

driver_HEND: 3
driver_HSTRT: 3

According to a tmc table

Can anyone explain to me what the TBL / TOFF parameters are mainly responsible for and how to select the dependent HEND / HSTRT parameters