Hi there,

I have a classic Ender 3.
Running Marlin-2.1.1 on a BTT SKR v1.3 board with TMC 2130 drivers.
Wifi connected with ESP3D on a ESP32-CAM board connected to TFT port.

Note: X endstop is on the left side.
When I send G28 or G28 X, the hotend do not home properly.
Rather the hot end just move a little to the right side (like 3mm) and stops.
So if I keep on sending G28 X, the hot end just moves little by little to the right side.
configuration files

When you send G0 X commands, does the head move in the correct direction the correct distance?

Does the X stepper buzz a lot when this happens? If yes then you may be marginal on your stepper settings. If the acceleration and/or feedrate are too high then the stepper motor functionality can be pretty bizarre. It can just sit there and buzz or move in jerks or move the wrong way. Try dropping the feedrates and acceleration settings by half. Don't forget the homing feedrates.

... could be, your endstops are already "triggered", so the movement is trying to leave the endswitch, but because it didn't change, stops and gives an internal error.

Check the status of the endswitches with "M119" ...

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Viktor
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Quote
VDX
... could be, your endstops are already "triggered", so the movement is trying to leave the endswitch, but because it didn't change, stops and gives an internal error.

Check the status of the endswitches with "M119" ...

Thanks so much M119 showed it is triggered.
so it's a faulty switch.

Thanks so much appreciate much!

Quote
[email protected]
When you send G0 X commands, does the head move in the correct direction the correct distance?

Does the X stepper buzz a lot when this happens? If yes then you may be marginal on your stepper settings. If the acceleration and/or feedrate are too high then the stepper motor functionality can be pretty bizarre. It can just sit there and buzz or move in jerks or move the wrong way. Try dropping the feedrates and acceleration settings by half. Don't forget the homing feedrates.

Thanks so much for your reply and help appreciate much!