I would suggest loading at the hotter PETG temp and turning the temp down when you notice the PLA coming through, I have the powerspec pro never had this type of issue, then again I never unloaded always loaded. Is the fan turning on properly? and is the heat sink seated properly? Your temp of 210 should be fine although I print PLA in stages first layer is 210 I then gradually move down to 190. But this all depends on the brand of PLA
Skip to main content
Everything appears to be running properly. I don’t run PLA below 205 anymore, I was getting all kinds of jams in my E3D on my other printer when I did. The issue I had when I tried to load filament like that a couple times was that they wouldn’t stay contacting one another.
I’ve only had my Powerspec Ultra for a few months and have no issues with it. One thing I did notice right away the first time I tried switching filaments is that using the unload feature on the printer’s led screen is a bad idea. When the filament retracts, the stuff that has built up in the nozzle would get stuck in the Teflon tube so I don’t use that feature of the printer. Instead I just load the next color in and run the filament through for about 30-60 seconds to push out the old. When switching filament types (PLA>ABS and vice versa), I run a stick of dyna-purge through first before loading the new filament through. I highly recommend getting dyna-purge to keep the extruder clean, especially the Teflon tubes. Dyna-Purge® 3D Clean™ – Fargo 3D Printing 6
^^^ Good Answer, I actually just preheat and disengage the tension on the servo, gently push filament (you can feel the feedback on the extrusion), depending on how I left the printer I may feed 2 inches in before switching to the next. I should clean way more often 