I’ve calibrated the bed about 3 times for PLA (with a painter’s tape adhesion layer) and every time I use the default settings for PLA and select Raft as the bed adhesion, the print head is dropping right down to the build plate and the filament motor drive keeps clicking endlessly as the first raft layer is being created. The PLA is nearly clear and scraping along the tape. The result is the “mouse bite” Airwolf describes as filament not being extruded fast enough or the nozzle being blocked. What do I need to adjust to lay a first raft layer properly? The bed is properly leveled and I can slide a folded piece of paper between the nozzle and build plate with just a slight bit of friction. What is wrong with the default settings for the raft using PLA?
This seems like an issue with either the hardware or the settings ( which Airwolf maintains ). It would be best if you report this to them first.
I have the HD2X and had run into that before. Mouse bit was the issue. The culprit was me using some 3.00 filament instead of 2.85. I had to clean the gears out with compressed air. After that, it printed like a charm.
My filament was purchased from Airwolf. It measured 2.857 with my calipers. I’ve noticed my machine does not home the Z precisely. Everytime I start a print I manually check the center and all 4 corners and center again. From one prinf to the next, the Z is off and I need to make small adjustments again. Is this a Firmware issue or mechanical?