After yesterday’s exciting successes with my new Cocoon Create 3D printer from Aldi, today there have been some hiccups – namely I tried to change filaments and could not load any new filament into the extruder. The filament would start to load, and after about 5mm there would be a “clunk, clunk, clunk” sound as the motor was grinding the filament but not pushing it any further down. Being jammed, there were 2 possibilities; either the filament was not able to find its way down towards the nozzle because something was misaligned, or there was some old filament jammed in there. So after only 24 hours of ownership, it was time to hack at it and take apart the extruder. It’s actually very easy, and I’ve used the photos above to try and illustrate how to fix a jam.
- Use an allen key to remove the 2 screws on the left side of the extruder – be careful as these hold the entire extruder together, so you want to catch the parts rather than let them drop. Also make sure your nozzle is nice and cool!
- The fan can just hang from its wires, but the heat-sink and 2 white spacers can be removed, leaving the motor and feeder as shown in the second photo. This is what feeds the filament down into the nozzle (entering from where my thumb is). Check for any loose material in here and clean (mine was fine).
- As circled in photo 3, this little piece of the remaining first filament is the culprit of my jamming. It wasn’t enough to grab with pliers, so I just turned on the printer, heated the nozzle, and then used a small allen key to push all the material down through the extruder, leaving a large opening for the new material to enter.
- Done. Just re-assemble and make sure all the little wire connections are firmly attached.
This quick process solved the problem and new material loaded without any further problems. After looking on the Cocoon Create website it seems that there is almost no support or FAQ as yet, so I hope this helps anyone stuck.
– Posted by James Novak