Lazervida - X-axis rail stability adjustment - Bottom wheel tightness adjustment

When the following situations occur, it is recommended to adjust the tightness of the bottom wheel:

1. The engraved line jitters.

2. When the Y-axis slide rail moves up and down, the resistance is too tight / the resistance is too loose.

3. The X-axis slide rail is shaky.

4. Homing failure.

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