Microswiss does not mention Ender 6 to be a machine that is compatible with its direct drive. However, I have landed myself in a position where the printer I am using currently has a micro swiss direct drive. The printer was printing the bunny etc. default prints in the creality SD card just fine but I am getting nozzle scrapping the print surface when I print 5 152(L) mm x 35(W) mm x 3(T) mm prints with 100% infill. Could the incompatibility between the direct drive extruder and the Creality Ender 6 be the cause of eventual nozzle scrapping (rubbing) the print surface as the part's thickness increases? I have tried all sorts of settings. Increased/decreased bed temperatures (I am using PLA filament), adjusted the bed level, Z-offset. Nothing seems to be working.
1 Answers
After printing the printed filament level should be touching the nozzle (unless the filament shrinks considerably when the temperature decreases, e.g. when printing very big prints).
What is problematic is if the nozzle digs into already deposited layers when the printer over-extrudes, this has nothing to do with extruder compatibility, but with tuning the extrusion process.
Especially when printing 100 % infill, there is no room for the over-extrusion to go to than upwards in the infill region and outside at the walls. You need to further tune the extrusion process. First make sure the commanded extruded length is the actual extruded length (see How do I calibrate the extruder of my printer?), but further fine tuning may be required afterwards.
E.g. for one of the printers I have designed, the flow modifier in the slicer is set to 98 % in combination with the calibrated distance; it produce far better quality prints with this modifier.
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