Two good news for all you Cube 3 owners
You can now adjust the filament grip with this modified extruder-box. Not every filament has exactly the thickness of the original filament. With a simple adjustment of the screws you can prevent clogging.
Brace yourself......The Cube 3 Firmware has been HACKED!!! :D Some brilliant guys (not me :P) successfully made a Toolbox, to modify the original Firmware, so that it doesn't overwrite the DRM-chip. I was sceptical first but I can confirm that IT WORKS!!! FINALLY the Cube is unchained!!!! :D
Here's the download link with all the instructions you need:
many many thanks to these guys for their efforts!
Additional Material used:
-Festo QSM-3 (3mm to 3mm)
(I've got mine from here: http://www.der-schweighofer.ch/artikel/69867 )
-PTFE OD 3mm/ID 2mm
-screws M3x16mm (6Pcs)
-2x springs from the inside the extruder nozzle of two empty original cartridges
Aswell you will need:
-M3 thread cutter
PLEASE print piece2 separately and with SUPPORTS ON
The Cube 3 cartridges are well known for beeing unreliable. At least mine tend to break themselve every second time I'm trying to print something. My biggest problem was the tube releasing itself from the little CNC piece mounted to every cartridge. I think the pressure is just to high trough all those sharp angles. So I modified the tubing aswell. Just cut the upper part of the original plastic piece from the extruder needle. Tube used is 1xID2mm/OD3mm (380mm).
You can change the filament by disconnecting the tube from the Festo connector, cut the filament flush to the tube, insert the new filament just trough the cogwheel and leave it just before the festo connector begins. Put all together again and make a test-print until the new filament is trough.