The Original Prusa i3 MK3 is the successor of the award-winning Original Prusa i3 MK2 3D printer.

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Total assembly time of the i3 MK3?

Just curious as to the total assembly time that someone who has built the kit experienced. I bought this kit but I just love looking even more into it.

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It took me roughly 7 hours but I triple checked everything. Honestly, the most time consuming part of assembly is trying to figure out where the extra screws go, just to find out there were extras in the package. Make sure you count the parts and set the correct amount aside before each step so you aren't second guessing yourself.

Also, you have to insert hexagonal and square nuts into many of the printed parts, but the openings are too small 90% of the time. Expect to spend a significant amount of time on this, and have patience or they'll end up stuck at an angle. Follow the suggestion in the manual to pull the hexagonal nuts in with a bolt from the opposite side of the part.

P.S. The black filament included in the package is NOT for printing and it's not 1.75mm. Don't try to insert it into the extruder housing.

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I took approximately 6 hours plus an additional hour troubleshooting some glitches I'd introduced. This got me from unboxing through pre-flight check. I'm a MK2 owner, so I had some Prusa familiarity.

Tips: USE THE ONLINE INSTRUCTIONS. The printed version is a fine guide, but the online version allows for zooming on the images which can be critical. Additionally, the comments on the steps frequently add essential information.

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Thanks! I just have been curious. Awesome tip as well!

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Hi,

I'm totally new to 3D printing so never touched any printer before. It took me 8h45m to build it completely. I made 3 little mistakes that took me globally about 45m to correct so it could have taken me around 8 hours of straight work if no error occured.

I took particularly sufficient time to do the electronics chapter as I'm aware that any error in this particular part could make the whole thing irrevocably broken (I'm engineer in electronics).

After that I took Entertainment time in familly to recover. Then could not go and sleep without trying my new toy : I switched on the supply and everything ran smoothly from here on.

It took me about an hour to listen Prusa's first printer start video and do the calibration a few times.

Later I printed the Prusa logo with very few artifacts. Today I printed a pair of parts to make an handle to carry the printer by hand, it took 5h40 and it ran with absolutly no problem.

This printer is a jewel!

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I got the printerkit today and it took me about 5 hours to bring it to print something. But still i am facing some problems because i get a print fan error after the 2nd layer printing, so it will take some more hours to get it done without problems. But this i hope will solve tomorrow.

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I built mine over three days in between other jobs so around 8 to 12 hours, I do know that it took the printer longer to do it's self test than it did for me to wire it up. No problems with any parts and it passed the self test first time. Printed PLA PET ABS Flex so far only problem was Flex which wrapped itself around the extruder.

Changed print settings to 200 and no heated bed now prints fine, but stuck really hard to bed.

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I was following the online assembly manual and I was very careful with everything as this was my first 3D printer. I assembled mine during 3 evenings and it took about 12 hours in total including self test and calibration wizard.

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First build of a MK3 took me around 10 hrs, and I have never built anything like this before.

Everything works fine (the device passed all testing perfectly and is printing very well), building the thing yourself has some educational value, but even with all the experience that I got from this, I would still buy a factory made one if I was buying again.

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Another data point: It took me about 7 hours over 3 evenings. I was printing by the 3rd evening. This build time included 2 instances where I had to go back, take apart, and rebuild two sections because of mistakes I made along the way. I also had to print a replacement trapezoidal nut (about an hour of build time) for one that got cross-threaded.

Since then, I have been printing almost non-stop on the new printer. I must have built it right!!

If I had to do it over again, I would build it myself (again). The experience makes me an "expert" in the construction/repair of my printer. That is very much worth the time I spent.

My only suggestion is that you should take your time and don't rush the build. Enjoy the time spent and learn as you go.

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Davis Berger will be eternally grateful.
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