When to Tighten the Belts
If your prints are slanted or have shifting layers, it may be time to tighten both the X-axis and Y-axis belts on your MakerBot Replicator 2X.
Tightening the X-Axis Belt
To tighten the X-axis belt, you will need the 2.5 mm hex wrench that was included with your MakerBot Replicator 2X.
- Move the gantry to the front of your MakerBot Replicator 2X.
- Use the 2.5 mm hex wrench to loosen the four screws on that are attached to the X-axis motor on the right side of the gantry. Do not remove the screws altogether.
- Pull the gantry to the middle of the MakerBot Replicator 2X. Hold the motor and pull on it to create tension on the belt.
- While continuing to pull the gantry, use the 2.5 mm hex wrench to re-tighten the four screws on the X motor.
Tightening the Y-Axis Belt
To tighten the Y-axis belt you will need a 5.5 mm socket wrench.
- Locate the Y-axis motor harness on the back right side of your MakerBot Replicator 2X.
- Using the 5.5 mm socket wrench, loosen the two Nylock nuts located at the top and bottom of the Y-axis motor harness. Do not remove these altogether.
- Push down firmly on the Y-axis motor to create tension.
- While continuing to push the Y-axis motor down, re-tighten the Nylock nuts.
It may help to watch the following video of this process. A MakerBot Replicator 2 is used in the video, but the process is similar:
If you are still having issues with slanted prints, click here for other troubleshooting suggestions.