Version of Marlin Firmware. 2.0.9.3. Printer model. Anycubic i3 Mega S. Electronics. Stock board. Add-ons. Fysetc display (FYSETC_MINI_12864_1_2), BLTouch (probe and Z endstop) // Force the use of the probe for Z-axis homing #define USE_PROBE_FOR_Z_HOMING /** * Z_MIN_PROBE_PIN * * Define this pin if the probe is not connected to Z_MIN_PIN
If I go to the move menu it shows that the Z axis is at 10.0. If I use the "Move" and select Z axis if I select a lower value and press the button it doesn't move. But I can select a higher number and it will move up. After moving it up, I can't move it back down. The BL Touch sensor on the unit (the plastic needle or finger on the bottom) will
When the X & Y Homing complete, the print head goes to the middle of the bed, about 10 -20 mm off the bed, then the CR-Touch repeatedly deploys and retracts the pin, the Z-axis does not move otherwise. I will mention that if I install the 3.0 Marlin firmware without the Z-homing, it will work to z-home using the z-stop, but not the CR-Touch probe.
This aborts the function because CAN_HOME_Z evaluates to false, which in turn is because the macro requires Z_MIN_PIN to be set. Expected behavior: Marlin uses the probe to detect when the bed has reached Z home. Actual behavior: Marlin aborts the homing process without lowering Z at all.
I haven't gone back and tried the other version, although it isn't clear which line I need to use. Right now I am trying the first line, as I am using the 5 pin connection on the board. My current issue is that when autohoming the printer won't lower on the Z axis. In fact, now I can't even get the Z axis to go down, only up.
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    • marlin z axis not homing