Home / Not Extruding at Start of a Print

This problem is common and easy to fix. If not extruding plastic at the beginning of your print, please check the following things to solve the problem.


  • Extruder was not primed before beginning the print

A primed extruder is full of plastic and ready to extrude. However, when sitting idle, the hot filament inside the nozzle tends to ooze out of the tip, which creates a void inside the nozzle where the plastic has drained out. This could happen when you are preheating or cooling the extruder. Hence, the extruder is not primed anymore. When you print with such extruder condition, it is likely that it will take a few seconds before plastic starts to come out of the nozzle again. To solve this issue, make sure that you prime your extruder right before beginning a print so that the nozzle is full of plastic and ready to extrude. A common way to do this in ideaMaker is by including something called Brim or Raft. The brim adds extra rings around the exterior of your part, similar to how a brim of a hat increases the circumference of the hat. This option can be enabled by going to the “Raft” after you select a template for your part. ideaMaker also allows users to add a Raft under their part, which can also be used to provide an extra bottom of your part for bed adhesion and decrease the influence that the build platform is not level exert over the print quality as well.

  • Nozzle starting position is too close to the bed

         If nozzle starts too close to the bed, the hole in the tip of nozzle will be blocked and no plastic will be extruded. As the print continues to finish the first several layers, the bed is moving further away from the nozzle and the extrusion begins. If this is the case for you, you can twist the Z-limit screw anti-clockwise which can decrease a little travel distance for the build platform in Z-direction. However, if the gap between platform and nozzle is too wide, you could also fail your print. If too wide, you can twist the Z-limit screw clockwise which can increase a little travel distance for the build platform in Z-direction. The Z-limit screw for N2 and N2+ is at the left front corner of the build plate. The one for N1 is at the back of the build plate both the left side of the lead screw.

  • The filament has stripped against the drive gear

The N-series printers use a small gear to push the filament back and forth. The teeth on this gear bite into the filament and allow it to accurately control the position of the filament. However, if you notice lots of plastic shavings or it looks like there is a section missing from your filament, then it’s possible that the drive gear has removed too much plastic. Once this happens, the drive gear won’t have anything left to grab onto when it tries to move the filament back and forth. Please see the Grinding Filament section for instructions on how to fix this issue.

  • The nozzle is clogged

If none of the above suggestions are able to resolve the issue, then it is likely that your nozzle is clogged. First, heat the extruder to printing temperature in “Tune” tab, then manually pulling the filament out and then use the steel wire we provided to push out the residual plastic and debris. If still clogged, use a needle to push the material backwards through the nozzle tip. You can go to Clogged Extruder for more instruction.

  • Possible mechanical problems                        

Our printer is fully tested before shipping. However, during shipping, some parts may get loose and cause problems. If you suspect this could be the reason, here is a list of things you can check also.

  1. Extruder cover is too tight. Try loose the fix screws of the cover or remove it and print again to see whether the problem is solved.
  2. Drive motor cable is loose. Tighten the cable to see whether the problem is solved.
  3. The driver modules are not work. Contact us for further instruction. Do not replace different modules without instruction.