Troubleshooting Ultimaker Original

This troubleshooting guide is about the Ultimaker Original. For Ultimaker 2 troubleshooting, check the manual.
If you need any further assistance, please contact our Support team.

My Ultimaker is having extrusion problems. No or not enough plastic is released from the nozzle.

As a first test unlock your feeder mechanism. Try to manually pull out the filament from the back. Is this possible? You do not have a plug. The problem can be a clogged nozzle, or the lack of pressure in your feeder mechanism. Do you have a teeth-markings on your filament? The pressure from your feeder mechanism is sufficient. In case of a clogged nozzle or another hot end part, preheat your Ultimaker to 250°C and try to push the filament through manually. If the blockage is removed you can continue printing, preferably at a temperature of 250°C for the first 10 minutes to clean out any residue. If there is still no plastic being released from the nozzle, take the following steps. Preheat your Ultimaker to 210°C (for ABS use 250°C) and retract the filament a little bit, so that it’s not in the nozzle anymore. Take some pliers to unscrew the nozzle and push the filament through the hot end manually. Is it coming out smoothly? In that case the blockage is in the nozzle and it might have to be replaced. If there is still no plastic coming out of the hot end, the blockage is caused by a different part. In either case, please contact our Support team for further assistance.

If you do have a plug, heat up your hot end to 250°C and leave it for 5 minutes. Allow the heat to travel up through the filament and enable the filament to be pulled out. When this is not possible, please contact our support team for further instructions.

The hot end of my Ultimaker is leaking. There is plastic forming on top of the aluminum heater block.

The hot end parts are just not tightened enough, there is a small opening for the plastic to come out. You can solve this easily by taking the following steps, but please do it carefully! First, preheat your Ultimaker to 210°C (for ABS use 250°C). Loosen the long thumb screw that goes through the front right corner of the print head a little bit, so that you can reach the hot end parts better. Now, take 2 pliers - hold the aluminum heater block with one plier and the PEEK isolator with the other. Keep the aluminum heater block on its place and slightly tighten the parts by turning the PEEK isolator towards you. Make sure you do this very carefully! If you tighten it too much, the hot end isolator tube might break. When you are finished you can tighten the long thumb screw again and continue printing. In case you need further help you can get in touch with our Support team, who will get you back on track again with your Ultimaker.

Prints get skewed and it looks as if the print head is moving a little bit more towards one side after each layer.

The most common causes for this issue are loose pulleys or belts. Therefore we recommend you to check all the pulleys first (10 on the axes, 1 on the X-motor and 1 on the Y-motor). Make sure they are extra tight and are not able to move at all. Next, check if the belts aren’t too loose, especially the short belts on the X- and Y-motor need to have good tension. You can improve the tension of the short belts by loosening the 4 screws of the motors a little bit, sliding down the motor and tighten the screws again. If this doesn’t solve the problem and you are still experiencing problems, please contact our Support team.

I’m having problems with connecting my Ultimaker to Cura via USB.

This problem could either be caused by the computer, Arduino or the electronics board. First, try to connect with Cura on a different computer. If it still doesn’t connect, we need to figure out if it’s the Arduino or the electronics board causing problems. Go to the bottom of your Ultimaker and loosen the electronics from it (the cables can stay connected). Now, carefully take off the Arduino from the electronics board. Put the USB cable in the Arduino and connect it with your computer. Is the connection being established now? - No: the Arduino is causing the problem. To be sure try to connect the Arduino again on another computer and if it still doesn’t connect, a new Arduino is needed. - Yes: the electronics board is causing problems. Put the Arduino back on the electronics board and remove all the other cables and stepper drivers (please note their orientation!). Try to make connection with Cura again. If there is still no connection, the electronics board is broken. If it connects, it means that one of the external components interferes. To figure out which one it is, they need to be connected one by one. Once you have established what is causing the problem, or you need further assistance, please contact our Support team.

One of the motors is not working or is only moving in one direction.

If a motor is not working there could be several things causing this: the motor itself, a stepper driver or the electronics board. In case the extruder motor is not working, always check if the Ultimaker is heated while using the motor. To determine what is causing the motor to malfunction, please take the following steps. First, switch the broken motor with a working one on the electronics board. For example, if your X-motor is not working, swap it with the Y-motor. Then, control both via Cura or the UltiController to test the motors. If the X-motor is still not moving, it is broken and has to be replaced. In the other case - when the X-motor is working - it should now start moving and the Y-motor won’t move. This means that either the stepper driver or the electronics board is broken. To verify this, you have to swap the stepper driver of the X and Y (please mind the orientation!). Also, put the X- and Y-motor cable back in their original position on the electronics board. After you swapped the stepper drivers you can test both motors again. In case the X-motor is working and the Y-motor not, it means that the stepper driver is broken. If the X-motor isn’t working, but the Y-motor is, it means that the electronics board is broken. In either case you need a replacement part to get it working again. Please contact our Support team to discuss further details regarding this.

My Ultimaker is having temperature problems. I get a mintemp or maxtemp error.

If you get a temp error message it means that your Ultimaker is not able to register the temperature properly. A mintemp error means that the temperature is too low (< 5°C) and a maxtemp error means the temperature is too high (> 300°C), or the Ultimaker only thinks it is too low/high. In both cases this is most likely caused by a loose connection of one of the wires. Therefore, please check the connection of all the wires on top of the printhead and the connection of these wires on the electronics board. It is recommended to disconnect them and plug them in again to be sure that there is a proper connection. After turning your Ultimaker on again, check if the error message has disappeared. If not, you can get in touch with our Support team for further help.

My Doodle3D isn’t working properly. What can I do?

You can visit the Doodle3D help page for help & troubleshooting tips.


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