Filament does not extrude and the Advance Button stops working properly. You can often hear a faint grinding and the filament will seem to be moving backwards (V1 and V2 have similar troubleshooting steps, you can use the same instructions for these models).


1. Unplug the pen and wait until the nozzle is completely cold

2. Remove the nozzle


Step 1
Remove the Nozzle


Step 2
Remove the Nozzle


Step 3
Remove the Nozzle

3. Look in the pen housing just behind the nozzle and remove any projecting filament.  You may need to use small needle nose pliers.  Remove filament gently, trying to avoid breaking it. (Once ABS or PLA filament has been heated in this part of the pen, it will be brittle.)

4. Remove any filament sticking out of the back part of the nozzle.

5. The filament might still be stuck in the plastic tube inside the pen. Unscrew the only screw on the back of the pen.


5. Unscrew the only screw on the back of the pen.


6. Take the back housing off.


7. Remove the filament tube, remove any plastic that is stuck inside.


7. Remove the filament tube, remove any plastic that is stuck inside.


8. Make sure that there is no filament in the feeding hole…


… or in the front part.

9. Replace the nozzle and plug the pen back in. Make sure it is installed completely, otherwise the pen will show a message, – “Error 1”. If that message accrued, turn the pen off and reinstall the nozzle (make sure pins are not bent).

10. Press the forward advance button. This should bring the nozzle up to melting temperature. However, you might encounter “Error 3” message, which means the heating sensor in the nozzle is defective, and you should replace it with a new one.

11. When the target temperature is reached insert approximately 12 inches of clear (transparent) or any light colored filament and advance until six inches or more has been extruded.

12. Remove clear filament and replace with color of your choice.



1. Unplug and allow your pen to go completely cold after each continuous use of 20 to 30 minutes.

2. After each total use of approximately 60 minutes, remove colored filament and advance 6 to 8 inches of clear (transparent) filament and allow the pen to go cold.

3. If the pen housing near the advance or speed buttons begins to feel noticeably warm, unplug the pen and allow it to become completely cold. All 3D pens work by heating filament to a near liquid state using electrical heat coils (much like a tiny toaster). If this electric element is allowed to overheat it can cause warping of the plastic components immediately behind. This needs to be avoided.

4. When using dark colored filament, or any filament of a metallic description, you should run the nozzle cleaning procedure more often.

Note 2:

1. Once heated, prior to the actual melt process immediately preceding the pen nozzle itself, ABS and PLA filament will become slightly brittle. When filament is removed during a color changing process, at least three inches of any filament that has been used previously, should be trimmed before reinserting it into the pen. This brittle filament is often what causes clogging.

2. The Scribbler nozzle is ceramic and will remain clean of filament build-up without maintenance, however if after many hours of use a black build-up does occur, the nozzle should be replaced. (Available from Scribbler) Otherwise damage to mechanical parts of the pen can occur.

3. When using your Scribbler Pen, keep the surrounding work area as clean as possible. The small pieces of used and/or trimmed bits of filament, especially the hair like bits, should be vacuumed up. (A small hand-held vacuum works well) Avoid blowing or sweeping, as this can cause the very small pieces to become airborne. These tiny pieces of filament can present a choking hazard to pets and small children. For the same reason, do not use pen in any area where food preparation occurs.

Note 3:

1. Always cut the end of plastic filament before entering it in the 3D Pen.

2. Never leave plastic in the pen before turning it off. Please take out the plastic completely and then turn the pen off.

3. Never feed the whole loop of plastic into the pen. If there is 1 inch of plastic filament left, please take it out the pen completely and insert a new loop.