Hi everyone, as a part of my degree project, I’m using a Bioprinter to print PCL. I have to clean the cartridge, so to change material to print, but I’m having some issues… I extruded all the material once finished printing, then put the cartridge on acetone, but there’s some pcl on the walls of the cartridge, which I managed to remove but now is on the bottom. Do I have to extrude all the material again? Is there an easiest way to clean an aluminium cartridge? Thank you all for the help!