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bigtreetech / BIGTREETECH-SKR-V1.3

32bit board with LPC1768, support marlin2.0 and smoothieware, support lcd2004/12864, On-board TMC2130 SPI interface and TMC2208 UART interface no additional wiring is required
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SKR1.4turbo with TMC2209 and TFT3.5E3 #413

Open JoeOster opened 4 years ago

JoeOster commented 4 years ago

Currently trying to upgrade a Ender-3 Pro with the SKR 1.4 I am currently using the Marlin2.0bugfix Firmware.

The current behavior is everything is working, except homing. When I try and home I get about 10 mm in movement per axis. With XY being correct, the Z axis goes up not down.

I do have the diag pin clipped on z Stepper motor driver and I have enabled sensor less homing, so the x and y are un-clipped.

I have also confirmed that the sensor is plugged in to the z-stop, per this image

My configuration is located here

Any suggestions would be appreciated

Joes_Config.zip

Roughd1433 commented 4 years ago

go to configuration /advance settings/tmc drivers/ sensorless homing and lower the sensitivity I run 60 for x and y and 80 for z. also in your configurtation_adv.h file under sensorless homing un comment //#define Z_STALL_SENSITIVITY 8 and //#define IMPROVE_HOMING_RELIABILITY

you can also change the sensitivity here as well to base ones like 60 and 80.