So i'm trying to get started with HIPS as a support material and have been having some issues with it clogging in the multiplexer. The HIPS doesn't retract fully and sits there until it mushrooms on the end which means it can't be unloaded since it's jammed in the multiplexer. So my first thought of course was to check that E4 is calibrated and extruding/retracting correctly so I started on Extruder 1 using this guide (https://mattshub.com/2017/04/19/extruder-calibration/
) and all was well. I was able to save the correct E-step value using M500 and reset the machine to confirm it stuck for Extruder 1.
My question for you Gurus is how do I check and calibrate the rest of the extruders? I've changed extruders in the printer settings but my M503 just spits back the setting that were saved for E1.
I've cruised around the forums and found one post that basically came down to "check your extruder screw tension"....which of course I have and didn't seem to answer the OP's original question that was similar to mine.
Thanks for the help!