Prusa Core One - VIDEO BUILD GUIDE - Assembly and first prints troubleshooting

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Wed, 15 Apr 2026 07:34:43 +0000

TTT!

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Fri, 23 Jan 2026 17:59:03 +0000

Core One build guide has been updated with the new Core One > Core One+ Upgrade!

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Wed, 14 Jan 2026 08:58:40 +0000

Thank you.

The video guide is supplemental material to the official guide - I never created it in an attempt to replace the official online guide. Bearing that in mind the build process is the same for the Core One+, so the the majority of the videos are valid and can still be used. The only difference will be with the spool holder (which still attaches the same way anyways), the top vent opener (again attaches the same on the side of the extruder, its just a different shaped part), and the side filament sensor (which is very similar to the existing). Hence, the videos will still help and guide you, while the official online guide will be more precise in these areas of course.

I'm starting work on another video to add to the series, which will cover the Core One+ specific parts ;)

Posted by: @mhfromb
Hi,
From what I have seen so far, these are really excellent videos! Thanks so much for this!
I just ordered a Core One+ kit (my first Prusa printer). Is there any reason to not follow this guide when assembling the "plus" version? Any traps I might step into because of the differences?
Mirko

RE: Prusa Core One - VIDEO BUILD GUIDE

MHfromB — Tue, 13 Jan 2026 16:45:09 +0000

Hi,

From what I have seen so far, these are really excellent videos! Thanks so much for this!

I just ordered a Core One+ kit (my first Prusa printer). Is there any reason to not follow this guide when assembling the "plus" version? Any traps I might step into because of the differences?

Mirko

RE: Prusa Core One - VIDEO BUILD GUIDE

Conrad — Thu, 08 Jan 2026 00:36:38 +0000

That's a brilliant and, no doubt, a massively time-consuming effort! I only watched a little, having already built my Core One, but everything is well staged and very clear. There are a couple things I'd suggest, based on various posts here and other platforms. Several parts should be carefully checked before assembly, especially the brackets holding the X-axis rail. They should be checked with a square, so any later bending is kept to a minimum. Next, and it was missed in the X-Y assembly section, it's critical that the belt tensioner screws get lubricated with the Prusa grease, lest they wear and/or gall and seize. Knowing what I know now, I probably would have lubed the threads of any screws going into the square stainless-steel nuts and the self-locking hex nuts. I know there's one in my printer that I hope never to have to take apart, as it will almost certainly destroy its mating plastic part.

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Wed, 07 Jan 2026 09:53:02 +0000

Getting this up there to help more builders!

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Tue, 04 Nov 2025 15:05:53 +0000

Getting this up there to help more builders!

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Mon, 22 Sep 2025 14:14:54 +0000

bump....

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Sun, 10 Aug 2025 22:17:33 +0000

bump....

RE: Prusa Core One - VIDEO BUILD GUIDE

iftibashir — Sat, 26 Jul 2025 20:04:15 +0000

Another happy viewer ;)

Good to hear all went well, and good to see Prusa are addressing and fixing issues!