Thanks! Yeah I know about the MK3 upgrades over the MK2. It looks like it will be a noticeable improvement in speed over the MK2. I don't have a problem waiting until January either. However the thing that finally convinced me to pull the trigger on the MK3 purchase was when I saw the MMU online. So I just wanted to know from anyone that has the MMU for the MK2, did you have to slow down your prints with it, over the stock/single extruder? Was quality any different? Those are my two biggest concerns, which I assume they aren't justified. I haven't read anyone directly comparing say single color print(s) on the stock/single extruder vs a single color print on the MMU and noting speed/quality differences, if any.georg.s2 wrote: ↑Mon Nov 13, 2017 10:01 pmHi root!
The MK3 is still on pre-order, so no-one has received a production unit yet.
However, speed is specifically one point that is supposed to be improved on the MK3 (new drivers, stiffer frame) and flexible filaments should be handled better as well with the direct drive Bondtech extruder. Print quality is of yet unknown, but I don't see why the MK3 should be worse than the MK2S. Maybe it will take some updates to the profiles, but the end goal is certainly the same if not better quality.
BTW, if you order the MK3 now you have to wait at least until January to actually receive it.
Yikes! I'm sorry to see that. Have you received any help from Prusa or the forums? That definitely seems unusually/unacceptably bad. I'm hoping that quality/speed isn't a common tradeoff with the MMU... I may not purchase the Prusa all together, and go with some dual extruder.
I have been printing with the MMU since the end of August. A LOT. My waste tower bucket is now about 1.5kgs.
Great, thanks for the input! Interesting about layer heights, how low can you generally go with it for a high quality print? Yeah I've seen how much the purge tower wastes, definitely a major trade off for the functionality - but I'm okay with that.aaron.s5 wrote: ↑Sun Nov 19, 2017 5:02 pmI have been printing with the MMU since the end of August. A LOT. My waste tower bucket is now about 1.5kgs.
In my experience, the MMU takes some dialing in, but the print quality is as good if not better with PLA. I have not done much else with the MMU (did some TPU and PETG prior to the upgrade). You can't get to the very low layer heights (due to the gearing of the new extruder gears) but relative to the same setting the quality is the same for me. Maybe a bit better due to the more positive extruder control.
As far as speed goes, in single color it is the same. In multi-color, you have the significant extra time of the purge tower. But then again, you get a four color print!
The MMU can only go down to 0.15mm. (People have experiment with a bit lower.) The base unit can go to 0.05mm (which is only useful for very very small things - and really needs a smaller nozzle to be effective.) but the "good" quality is 0.1mm. The MMU does 0.15mm and 0.2mm which is fine for most of my printing needs.
It can go lower. I use variable layer height feature and with thiis it goes down to 0.07, which is, in most cases, no real difference to 0.05. I even printed with the 0.15 mm nozzle from e3d and I am getting a stunning quality.The MMU can only go down to 0.15mm. (People have experiment with a bit lower.)
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