We recently received a brand-new TAZ 4 at work (most of our 3D printers are Makerbot Replicator 2 machines) and I’m having a lot of problems with it. I’m printing in 3mm PLA and when we print, the extruded filament sticks to the nozzle and creates a “snotball” that just builds up around the nozzle. On the rare occasion that I can actually get a usable outline from it, the fill comes out very badly. I’ve tried putting glue stick or painter’s tape on the print bed’s PET film, but the results are always the same. I’m using the recommended slic3r settings for PLA (fast/low quality, no supports).
I’m also having problems printing from the SD card. When I put a .gcode file on the SD card and try to print from it, I get a “Wait for user…” message on the LCD that I can’t seem to get around. (Clicking the wheel/button on the LCD just takes me back to the menu.) The only reference I could find to “wait for user” was in the Marlin_main.cpp source code (under the “#ifdef ULTIPANEL” declaration).
What am I doing wrong here? I’m doing everything by the book that I can think of.