MK3S adn MMU2 issues and questions
What is the difference between the MMU2 and 2S?
I've had it for about a year and haven't used it much, spent the long weekend getting it dialed in and printing some basic stuff.
Prusament PLA prints great, no issues with benchy and other smaller prints with standard settings.
PCTPE had extrusion and adhesion issues to the textured sheet, a little glue stick helped.
The PCTPE underextrusion happened withe Taulman T-glase white. Base layer was OK, other layers got wispy and incomplete with the PCTPE stopping extruding at all.
The White Tglase I noticed was printing its perimeters fine, it was the fill and solid insides that were wispy. I was using the stock PETG setting, with out fan. I bumped up the temp to 245C and slowed it down to 50 percent, and the solid layers firmed up. I got it back to 70% of stock speeds and it still looked good.
Q: What are typical speeds and temps for Taulman T-glas? Now I'm at 245C and 50-60mm/s on the speed for infill. It is nice and glossy.
Q: If you have materials in an MMU2 that take vastly different speeds to print optimally, can you vary the speed per filament? Or do you just have to go with the lowest speed?
Q:PCTPE settings for temp and speed? I think I'll slow this one down too and add a little heat. The bottom layer printed fine, it was the faster layers that had an issue.
Q: Under 'Print Settings' and 'Extruders' you can set what extruder does infill, support and others. How does this work if you have an object that uses three filaments by design, but you want to use support material. Do you put you three filaments in 1,2,3 and the support one in 4- and then in this menu change the support one to 4.
Q. I was loading filament 2 and filament 3 was feeding too- what is this a symptom of? I might have screwed down the cover a bit too much?
Thanks!
The MMU is interesting, hopefully it will become useful...