The X and Y axes allows the extruder to move forwards, backwards, left and right along the guide rails during the printing process as well as platform and pre-print calibration. The axes are attached to the self-aligning bearings and secured inside the housing. Therefore, if you notice that the extruder is not moving as easily as usual and you can hear knocking sounds coming from the housing where the self-aligning bearings are fixed, you should consider replacing the axes.

This manual provides instructions on the X axis replacement. The Y axis should be replaced in a very similar way.

1

Unplugging the Power Cable

Turn off the printer and unplug the power cable.

2

Unplugging the Extruder Cable

Unplug the extruder cable.

3

Unscrewing the Axis Block Covers, part 1

Unscrew one screw that secures the axis block cover on each block.

4

Unscrewing the Axis Block Covers, part 2

Unscrew the other screw that secures the axis block cover on each block.

5

Extruder Removal

Remove the extruder along with its guide rails.

6

Unscrewing the Belt Tensioners

Unscrew the screw that secures the belt tensioner on each axis block and remove the belt from the block.

The Y axis belt tensioners are placed on top of the Y axis blocks, whereas the X axis belt tensioners are placed on the bottom of the X axis blocks.
7

Loosening the Screws on the Self-Aligning Bearings

Loosen the screws on the self-aligning bearings on both sides of the X axis.

8

Unscrewing the Self-Aligning Bearings

Unscrew the screws that secure the self-aligning bearings. Use a wrench or pliers to hold the nuts of the screws.

9

Axis Removal

Remove the belts from the ends of the axis and remove the axis from the printer.

10

Axis Assembly

Place the new axis in the printer by putting the belts on it.

11

Securing the Self-Aligning Bearings

Secure the self-aligning bearings with the screws.

Do not fully tighten the screws yet. They need to be left slightly loose until the assembly of the axis is finished.
12

Tightening the Screws on the Self-Aligning Bearings

Tighten the screws on the self-aligning bearings on both sides of the X axis.

13

Extruder Installation

Install the extruder with its guide rails.

14

Securing the Axis Block Covers, part 1

Tighten one screw that secures the axis block cover on each block.

Do not tighten the screws fully yet. They need to be tightened once the axis assembly is finished.
15

Securing the Axis Block Covers, part 2

Tighten the other screws on top of each axis block.

Do not tighten the screws fully yet. They need to be tightened once the axis assembly is finished.
16

Securing the Belt Tensioners

Put the belts inside the belt tensioners. Secure each tensioner with the screw.

17

Tightening the Screws on the Axis Block Covers

Finish tightening the screws on each axis block covers.

18

Tightening the Self-Aligning Bearing Screws

Tighten the screws that secure the self-aligning bearings on both sides of the housing.

Was this article helpful?

Yes No

Thank you for your feedback.

Arrow back Arrow up