Video

looking forward to your first mmu prints with this, I have only made a 2 color sheep and poker chip test prints so far, might try an 8hr + 5 color on the MK4 this weekend

You made that look very easy. 😀 I really like that you have the steps superimposed on the top left of the video. Regarding the zip ties. If you want to get the zip tie to go in from the bottom of the electronics cover, just bend the last half inch of the tie at a 90-degree angle. That should allow you to get it through the hole. I would go back and trim the sharp ends of the tie wraps that you left with your scissors using your filament cutters. You can get a very nasty cut on one of those zip ties.

How comes you didn't make the parts yourself? I usually download Prusa's gcode and slow the print down for improved quality. That ringing triggers my OCD a little, although I might be a tad weird like that admittedly.

I thought you said before you were not a fan of assembling things. This look pretty in-depth.

Bambu is the clear winning here. I expect more from Prusa. I had an MK3s for some time and I was happy, it was a workhorse. Never failed me. But the new Prusa XL doesn't meet my expectations. I find it far away from acceptable print quality. On the other hand, Bambu managed to build some printers with outstanding print quality and the price is what people expect from a 3d printer.

You work fast 🙂

I think your video is good for a beginning and an experienced builder. I use an egg crate or ice cube tray for bolts and such, kind of a handy way of organizing things while building. Nice job catching that bearing pin that was rolling away 😉

Catching up on your MMU3 build videos 🙂

Coming along nicely.

Блин, тут с Задорновым не поспоришь... как же он был прав...

Wow, you do have a lot of patience and persistence! I would have given up on the second one when it failed. Sad to see so much wasted filament. And the out of stock issue is not just Prusa, Elegoo seems to have the same issue, at least on the Elegoo Canada store. Love the Elegoo filament, but can't get the colours I need.

Fyi Chris Taylor on his Nerys channel figured this out in vase mode a year or two back. I cant recall how he did it. Laurie. NZ. 😊

Mine should be here by early June. Can't wait. Subscribed!

Very cool. You're basically becoming a mechanic. You should be able to rebuild an engine carburator after this 👍🤓

ill be honest their setup for MMU is not appealing what she ever.

I would swear this is the (exact) same video as the MMU3 for Mk3 video. The devil is in the details I guess.

Hit: It is better to mount the F.I.N.D.A. a little too high, than too low. I managed to mount mine in a fluctuating state. Which halted the printer. I dissembled a reassembled the extruder, before I fount out I just had to raise the F.I.N.D.A.

Legit ASMR meets printer building. Love it

You are much more comfortable putting it together than you were the first time. Things are going very smoothly.

Hi, I can't wait to see your MMU3 vs AMS videos, I have just space for 1 printer, I'm tring to sell my 2 yrs Prusa MK3s+, I like to assembly printers and printing in PLA and PETG, but now I don't know if I should buy a MK4+MMU3 or a Bambulab A1 combo!

I just returned my Prusa xl. I'm done with Prusa no penny from me going to this overpriced junk. Using p1s for about 3 weeks and never been happier ❤

Anyone know if the WYZE cams can be set up in Prusa connect?

Woo! Was excited for this video ^-^ I plan on ordering mine, as soon as my Prusameters reward request gets accepted, so I can add a free roll of PETG to my order.

Yeeesss!!! I’ve been really hoping you’d do a MMU3 video for the MK4!

Wow, I actually received mine before a youtuber. I think the spool holders should be an optional add on because I just have my 5 spools hanging below the table and they are working just fine.

As I understand it, the biggest difference between the Mk3 and Mk4 builds of the MMU3 are the changes to the printer itself. While Prusa wanted the Mk4 to not require any changes, unfortunately they had to do so. You will be taking the Nextruder apart and replacing some of the pieces. I am curious, though - you have the XL with a tool changer, why did you choose to get the MMU3?

The buffer makes the MMU3 system work flawlessly. When it's installed next to the printer with the little leg that sits underneath the printer to stop it moving about, it only takes up about another 70mm in width, which is very minimal. As for the filament spool holders, well they can be placed anywhere. They don't necessarily have to be in the same configuration as Prusa suggests. In fact I have mine mounted above one of my MK4 MMU3 print stations on a shelf and I have printed a lot of multicolored models with it with no trouble whatsoever. And another suggestion would be that you don't have to have PTFE tubes going all the way to your spool holders either, this just makes it harder to feed filament and constricts where you can place your spool holders. I also just have about six inches of PTFE tubing coming out of the buffer for each segment, meaning five in total. That way you are not restricted by where you can have your spool holders, and also it minimises drag on the filament. Just remember that when the filament is loaded in the buffer that the filament between the spool holders and the buffer never goes slack, it is always taut. On another of my MK4 MMU3 print stations I have the filament spools mounted underneath in a cupboard, same thing, prints have come out flawlessly and I have not had ANY load problems either. If you're creative with your configurations when it comes to your maker space then you will discover that it takes up very little extra space. Good luck and I look forward to your upcoming videos regarding your experience with the MK4 MMU3.

I been waiting for this...hopfully this will convince me to get it!. Thank you!

Are the Prusa MMU kits comparable to the BL AMS and AMS Lite, as far as making multi material prints? Can the MMU switch to a backup.spool (having same material) if the one you're printing with runs out? These vids are very interesting. I wait for the printing results and comparisons 👍😊

Wow, you must enjoy the punishment the MMU provides. I don't know why you would get this when you already have a 5T XL...and an X1 too! Well, I hope your experience goes better than your XL experience. The MMU is the worst product Prusa has ever produced.

Thanks, am waiting for mine. I look forward to your build and also the decisions about the buffer 🙂

It will be interesting to see how you end up placing the spool holders and the buffer. This will not be a 10-minute install. 🙂

Status after 3 weeks of using my Prusa MK4 with the MMU3. I think it is important is share both good and bad experience, and their ratio: • Successful prints: 28 • Failed prints, my fault: 4 • Failed prints, hardware/software fault: 1 • Filament loads: 1720 • Filament interventions: 2 • Print time: 4d23h My success rate has been quite good. Especially since I am counting all attempts, include those where I learnt what not to do. This is my first MMU, and I am printing primarily in 6 year old ABS. My conclusion is that: Not only is the MMU3 very reliable. It actually improves the reliability of the raw MK4. Which means I no longer need the babysit the printer, to make sure first layer calibration goes well. I can just start a print and go to work or sleep. *Issues with raw MK4, fixed with MMU3* [1] During print start. The pull-force required to pull down the print head, with loaded filament, can bee too high. Resulting in the print not starting. [2] Oozing causing the first layer calibration to halt. [3] Oozing causing the first layer calibration to fail. *Consequence of issues* [1+2] Results in one can return to a print after 8 hours, which has not started at all. [3] At best gives a poor first layer, or at worst covers your print head in wasted filament, and possible breaks some parts in the print head. *How is it fix with the MMU3 added* [1] Has been fixed by having a PTFE tube between the print head and the MMU3. So no extra pull force is required while the print head is being lowered. [2+3] Has been fixed by removing oozing, by not have the nozzle loaded while doing the first layer calibration.

I'll be basing my "investment" on this series. No pressure. 😂 Thanks for clear, honest videos 👌🏼

same for me, would love to see❤

I’d have done a test print of like an inch tall and tested for leaks - but the end result looks great. How much slower than vase mode?

Working on a Bambu lab in a Prusa t-shirt 😂.

If you don't have a pop filter, it might be cool to make one or something just to control some of the gusts from you speaking that happen every now and then. I dunno what your mic is so I can't really help any more than that. Nice lil video about the input shaping too! I'm just getting into 3d printing and this was handy

Cant wait for scarf seam hide those nasty seams better.

That is very quick!

Underrated channel!

You could always send me one.

This will be really interesting to see, im thinking of buying the mmu, and if that's a good idea or if I'd be better of buying a Bambu printer with ams

I am really looking forward to seeing the MMU3 on your MK4. I was had ordered one but cancelled it because of all of the problems people were having with it. I understand that it is much better now. Let's hope you have a great experience with yours.

Been loving my MMU3 on my MK4. Hope it works better than your MK3S+ experience.

Did you Sell your prusa xl ?

Nobody See that bambu cant Print edges? Its all so smooth. Uugh

I just got the MK4 MMU3 and I am also trying to figure how I can stack and minimize the footprint of the spools, and then I started having filament try to jump over the gap, Got my thinking cap going :)

I would iike work with creating a multi-wall vase mode.

Nicely done.