How to unclog jammed extruder nozzle

by CreativeTools, published

How to unclog jammed extruder nozzle by CreativeTools Nov 17, 2012
0 Share
Download All Files

Thing Apps Enabled

Order This Printed View All Apps


Liked By

View All

Give a Shout Out

If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.

Print Thing Tag

Thing Statistics

10135Views 852Downloads Found in Hand Tools


This video shows a simple way to unclog an obtruded 3D print Stepstruder which had a foreign object impeding the smooth flow of molten plastic.

By Creative Tools


  • Place the USB microscope at a desired location
  • Turn on the heat on the Stepstruder
  • Bend outwards a wire of a small steel brush. The diameter of each wire may not be bigger than 0.3 mm
  • Carefully insert the wire into the stepstruder to unclog it
    See how to do this at: http://www.youtube.com/watch?v=MJu_JycbIN4

More from Hand Tools

view more

All Apps

Auto-magically prepare your 3D models for 3D printing. A cloud based 3D models Preparing and Healing solution for 3D Printing, MakePrintable provides features for model repairing, wall thickness...

App Info Launch App

Kiri:Moto is an integrated cloud-based slicer and tool-path generator for 3D Printing, CAM / CNC and Laser cutting. *** 3D printing mode provides model slicing and GCode output using built-in...

App Info Launch App
KiriMoto Thing App

With 3D Slash, you can edit 3d models like a stonecutter. A unique interface: as fun as a building game! The perfect tool for non-designers and children to create in 3D.

App Info Launch App

Print through a distributed network of 3D printing enthusiasts from across the US, at a fraction of the cost of the competitors. We want to change the world for the better through technology, an...

App Info Launch App

Quickly Scale, Mirror or Cut your 3D Models

App Info Launch App

3D Print a wide range of designs with Treatstock. Easy to use tools to get the perfect result. The global 3D printing network that connects you with high-quality and fast working print services nea...

App Info Launch App

i can do it without microscope.
but i had some problems to find a wire that fits my 0.4 nozzles

I had a similar problem, but the obstruction was too big to come out that way.  For my bowden setup, instead of pulling the head apart, I was able to just remove the bowden tube, heat the heater block to about 160, use this technic to push up obstruction and pull what I could with needle nose plyers.  that still didn't get it so used some ABS filamant (was printing PLA) to fish out the remaining filament goo, it stuck very well to the residual PLA.  That got it.

100c for PLA, and 150c for ABS are the optimal temps to pull out filament from the hot end, allowing it to pull basically all debris and "gunk" from the hot end along with it.

Start with a cool hot end, set the temp, and reverse filament when it starts getting near those temperatures.  It'll even occasionally pull the filament completely out of the nozzle orifice as well.  Reverse the filament all the way out, clip off the end, and put your fresh end back in the newly cleaned extruder.

Thanks for this tip. Sounds clever and easy to do. :)