I don't think he had any retractions because of the part being printed so that's a good idea but may make no difference.
You are printing amazingly slow which should be a good thing (less head pressure). So really the only thing I can think of to mess with is the printing temperature. I would first ask the manufacturer what the recommended temp is and I would also try raising the temp to maybe 240C. I would also google to see what temp other's are using this material at. I would also set the temp to 180C manually and turn the feeder gear manual - turn about 1/3 turn and stop and watch how fast the filament comes out. repeat a few times. Maybe use a stopwatch to see how long before it slows down to almost a stop. Then try 190C 200C up to 240C.
Also it's possible the temp is too high for this speed - maybe you need to print faster or thicker (either go to 50mm/sec or .2mm layers). I know this contradicts what I just said but you have to experiment. Some materials burn (or some of the components of the pla can burn) causing a jam in the head. Usually printing faster helps this kind of thing.
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owen 19
Try turning your retraction speed down or off. This stops the softer filament from getting chewed up by the material feeder.
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