If you experience the following problems – the extruder does not function properly and it makes unusual noises while moving along the axes or if relocated layers appear on your model, the axes in your printer need some maintenance work. This manual provides instructions on the axes maintenance. Keep in mind that you do not have to follow all the steps at once. 

 

Unplugging the Power Cable

Unplugging the Power Cable

Unplug the power cable.

Belts Maintenance

There are short and long belts in your printer and these belts need to be tense in order to ensure proper operation. First, check if none of them is loose by gently tugging each belt.

Tensioning the Short Belts

Loosen the four screws securing the motor using a 2,5mm Allen key. Press down the motor by hand to tense up the belt. Tighten the screws while the motor is still being pressed down.

Tensioning the Long Belts

Unplug the extruder cable.

Move the extruder to the center position by pushing the axes blocks.

Check if the belts are tense enough.

The first photo shows the correct tension of the belts. If the belts in your printer are insufficiently tense as it is shown in the second photo, move on to the next step.

Tighten the side screw on the block placed on the insufficiently tense belts.

Take a piece of tape and put it on the belt. Then move the extruder manually back and forth so that the tape gets on the rack. Remove the tape.

Put the jigs on the extruder guide rails and move the extruder manually so that the jigs can touch the X axis. This way, you will check if the extruder guide rails are parallel to the X axis.

If the extruder guide rails are not paralleled to the X axis (second photo), follow the steps from the manual: Axes Maintenance – method with jigs.

X/Y Axis Motor Pulleys Maintenance

If the motor is running but the belt does not move on the motor pulley, the screws on the pulley need tightening. First, unplug the motor cable.

Unscrew the screws securing the X/Y axis motor.

Remove the X/Y axis motor.

Tightening the screws on the motor pulley.

Place the motor in its place and secure it with the four screws.

Plug the motor cable in.

Axes Pulleys Maintenance

There are 8 drive pulleys next to the long belts with two screws on each pulley. Tighten each screw (16 screws altogether) on every drive pulley. Move the extruder to access the screws.

X/Y Axes Maintenance

Loosen the two screws securing the front of the X axis block.

Loosen the two screws securing the front of the opposite X axis block.

Move the extruder back and forth by pushing the blocks so that the front of the X axis block assumes the most optimal position. Next, tighten the two screws on the block.

Move the extruder back and forth by pushing the blocks so that the front of the opposite axis block assumes the most optimal position. Next, tighten the two screws on the block.

Put the jigs on the extruder guide rails and move the extruder manually so that the jigs can touch the X axis. This way, you will check if the extruder guide rails are parallel to the X axis.

If the extruder guide rails are not paralleled to the X axis (second photo), follow the steps from the manual: Axes Maintenance – method with jigs.

Lubricating the Axes

Regular lubrication is important to reduce the bearings friction and extend their life span. Use service grease to lubricate linear guides on the X and Y axes. Apply a thin layer of grease on each guide. Remember to lubricate the Z axis guides as well.

Plugging the Power Cable

Plugging the Power Cable

Plug the power cable in.

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