15-year old with access to an internet connection and an Original Prusa i3 MK3 with a semi-consistent MMU2.0.
Page 1 of 2
Is the tension set in that idler screw the same as it should be for printing? I have been having a couple issues with finding the right tension as it always leaves grinding marks.
I was informed by support (when I had issues with the PTFE tube) that it should be cut a little to 44.2mm. Should this be added?
Yeah, I had the same issue as Mihai here. However, I also got it in with a little bit of the “Prusa technique”, pulling the nut closer in with a screw. That works too.
Although the hex nut can go easily into its designated area, the shaft is a different story. As on the regular MK3, it is understandable that there is supposed to be a lot of resistance so that it doesn’t fall out, but the tolerance is just insanely small! I have to get a new one now…
The yellow dot on the extruder? That does not mean anything in terms of assembly but is an indicator of what model/date the extruder was made for reference in future upgrades. I believe the yellow dot just means MK3S, or from the time of the MK3S.
Took about 30 minutes to complete this section.
Hi there, I think it is necessary to also mention to remove the idler door. If I am correct I did not see a step for this and I almost forgot to take the bondtech gear out as mentioned in a step further below.
You cannot simply not eat the gummies. I do not know how you managed to assemble the printer alive.
What kind of pulleys are these? Or at least what kind of set screw fits inside them?
Looking over the manual for updates to instruction, I noticed a new part (or at least a part I didn’t notice before) regarding turning the pulley 90 degrees clockwise. However, doing so made it so that the extruder motor could not turn completely (I tried adjusting this after the printer was already assembled). Just a heads up to make sure that the set screw is in as far as possible… mine was stripped and I can’t find a replacement from the e-shop or amazon (for some reason, m3x2’s just don’t exist or something). The Bondtech website sells them for 15 cents but $16 shipping??? Will check for my nearest hardware store.