Marlin Gcode M115 - Display Firmware Version Info; P.I.D. Bed Calibration Guide; Printer Homing Types | Home Positions Explained | Min/Max/ABL Probes; Sensors and Gantry Grounding; SKR E3 Mini, SKR E3 Turbo, Creality V4.2.2, and V4.2.7 LCD EMI Issue Z Axis Troubleshooting; Zits or Blobs On My Prints; Upgrade Guides. Creality 32 Bit Based on your pictures, Y_MIN should be -39, Y bed size is correct, and Y_MAX should be similar to the X_MAX where you subtract Y_MIN from Y_BED_SIZE. Assuming your printer has the ability to travel to all of these extremes, of course. E:Just read your comment about the edge of the Y axis not reachable by the nozzle. When homing, z bed moves down before going up, crashing into brackets. Just got my SmartrapCore printer up and running with the latest version of Marlin. However, when I home the axes, my bed lowers 10-15mm before the x and y axes home. Although occasionally the x and y axes will home before the z axis moves at all, yet regardless the bed moves $\begingroup$ Marlin 2.0.6.1. Endstops are all optical. X-Max endstop packed in a few weeks ago. It has been disconnected from the board and commented out of Marlin. Other endstops used are X-Min, Y-Min and Y-Max. Z-Min used for the BL Touch. Z-Max used to drive BL Touch Servo. I will have to try the stepper drivers and G28 X command. Using the M203 command to set a new Z max speed value and finally saving it with M500 to the EEEPROM. You probably realize that by changing this max feed rate value in the EEPROM we can actually change the fast probing speed for the z-axis to any value equal or below what we have set to Z_PROBE_FEEDRATE_FAST. issues with Cr touch and auto homing after 4.2.7 upgrade. I installed the CR touch and the printer is not auto homing at all. The Z axis is not lowering. I then get the message stopped. I'm pretty sure I hooked everything up correctly as the Cr touch can only get plugged in one way. Any suggestions. Z axis not lowering suggests that you don't .

marlin z axis not homing