Won't Complete: Just Keeps Skipping

Problem

I starting homing. The printer starts moving and then it just keeps skipping. It never homes.

Solution

Your limit switch may not work.

Let's see if your limit switches works.

Run:

M18 X Y; This disables the CoreXY (motion) motors

Slowly move the extruder head to the center

Run:

M564 H0; Let's you move the motors without homing.
G91;

Manually engage (press down) on the X, Y, and Z Limit Switch. We recommend using tape.

Run:

G1 Y100 S1;
G1 X100 S1;
G1 Z100 S1;

Let's evaluate:

If the extruder moves forward or backward,

• The Y Limit Switch is not working.

If the extruder moves to either side,

• The X Limit Switch is not working.

If the bed moves down,

• The Z Limit Switch is not working.

Homing Z: Weird Z Endstop Values

Problem

I am calibrating my z endstop value. After I home Z, the Z endstop value is not what I put.

Solution

Your new z endstop value may not be saved.

Let's check what your current Z Endstop Value is.

Go to Settings. Then click the System Editor tab. Open the machine_zendstop.g file.

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Scroll down to the last line.

Check your Z Endstop Value. Is this the calibrated value?

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Your machine boundaries may be too low.

Let's check if your machine boundaries are interfering.

Go to Settings. Then click the System Editor tab. Open the machine_axisdimension.g file.

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Look for the line labeled " Maximum"

M203 X# Y# Z#; Maximum

Is this value smaller than your new Z Endstop Value?

Your mesh compensation may be changing the value.

Home the Z.

Run:

G29 S2

The Z Endstop Value should now be the calibrated value.

Mesh compensation is changing the value of your Z Endstop Value.

Proceed with printer operation.