Core One + Community project build - General discussion, announcements and releases

RE: Core One + Community project build

Philip Sørensen — Fri, 22 May 2026 12:06:46 +0000

FYI, I have now published my chamber heater for the core one. It sits in the corner without any structural changes to the printer, and it is nicely automated so that it responds to what the printer needs. That way, you don't have to sacrifice a window to bolt on a manually operated Creality heater :)

Feel free to have a look:
https://www.printables.com/model/1696936-jetpack-chamber-heater-for-the-core-one

RE: Core One + Community project build

dmbgo — Fri, 22 May 2026 11:59:09 +0000

Thanks Cédric

You're right of course. Perhaps an installable chamber heater instead?

RE: Core One + Community project build

Cédric — Fri, 22 May 2026 07:07:42 +0000

Posted by: @dmbgo
When the printer is absorbing heat, change the firmware, so that before it starts absorbing heat, it moves the bed to the lowest position within the chamber, and move the printhead to the middle of the printer. This will make for far better heat distribution within the chamber and possibly speed up the process.

It would create a massively long heat up process to lower the bed, especially if you have the printer in a cold environment. Pulling up the bed during warming up shortens this process quite a bit. Thats unless theres a chamber heater of course, which is the only time I heat with the bed lowered, even my top mounted one heats the bottom chamber in just a few minutes https://www.printables.com/model/1493740-chamber-heater-for-core-one-creality-standalone-un .

The one thing this printer really need is some machined brackets for the gantry, using bent steel etc there i would guess is the source of many troubles for some, and the variation between machines. As an engineer it makes me cringe when i see bent steel used for tolerance sensitive parts etc and the manual bending process. My printer have always been quite and smooth, but i also squared/bent everything up thoroughly during assembly, the brackets were not great out of the box.

RE: Core One + Community project build

jan.d.slay — Wed, 06 May 2026 07:29:04 +0000

Posted by: @dmbgo
When the printer is absorbing heat, change the firmware, so that before it starts absorbing heat, it moves the bed to the lowest position within the chamber, and move the printhead to the middle of the printer. This will make for far better heat distribution within the chamber and possibly speed up the process.

I don't think Prusa will implement that.

Lowering the print bed all the way down before starting the print to homing all three motors makes sense and reduces or prevents failed bed leveling, but I see running "Absorb Heat" at the very bottom—perhaps to preheat the chamber—as unnecessary.

Heat can enter the print bed from both the top and the bottom. If the print bed is at the bottom and the chamber is supposed to preheat, keep in mind that the space is much larger than it is at the very top. As a result, it takes even longer than it already does.

RE: Core One + Community project build

dmbgo — Mon, 04 May 2026 23:18:52 +0000

When the printer is absorbing heat, change the firmware, so that before it starts absorbing heat, it moves the bed to the lowest position within the chamber, and move the printhead to the middle of the printer. This will make for far better heat distribution within the chamber and possibly speed up the process.

RE: Core One + Community project build

Patronics — Sat, 25 Apr 2026 07:17:01 +0000

I'm guessing this is a stretch (and generally kinda silly), but it'd be cool to see someone combine the INDX and MMU3, allowing a total of 12 filaments to be configured at once (or for even more complexity, 40 filaments at once with an MMU on each INDX toolhead 😝)

RE: Core One + Community project build

Same Old Shane — Tue, 21 Apr 2026 07:45:24 +0000

UPDATE;

So... after going through everything on here (and still up for suggestions)

I am going to start on the base.
Starting with chapter 2 of the build, assemble the base unit and then stop.

For the bottom part I will add the following ;

*- Either one of these, depends on the casters I can get easily over here.
https://www.printables.com/model/1137934-prusa-core-one-feet-designed-for-fitting-with-whee
or
https://www.printables.com/model/1201890-prusa-core-one-feet-for-threaded-stem-caster
Also might remix them to see if I can make them longer

*- This was also recommended, but I would have ran into a situation with the feet, BUT there is an interesting thing with this where the designer added a Shelly Plus 1 home assistant module for smart device hook up (more for power activation and monitoring, not for direct prusa connect integration)
https://www.printables.com/model/1446923-crushed-legs-with-expandable-support-for-multiple

*- This unit was also suggested (I take suggestions on our discord and some other places), and I noticed going through their profile that they have an option to add a sheet holder and also I can use the feet as well

https://www.printables.com/model/1340773-gen2-prusa-core-one-kit

*- I will add some dust covers to the Z motors.
*- I will add some corner covers.
*- I will add the tray that is used for the nozzle wiper (YES I will add one)
*- Tilt option for the LCD
*- LCD cover

For the other options.
a fume extractor has been recommended often, as well as a chamber heater and those I have to look into more as I do have to look into various things and also get some help with wiring and such. I will like to try and keep it so it is the best option and don't need to be an electrician or engineer so other community members could do the same

There have been some requests where I would need to work with firmware developers to redo code and I can't bother them for this project as they have their hands full. The original idea for this project was to take existing community mods that could be added, so requests for us to create the mods are out.

I was looking at the MMU3 community mod for hte core one, more so the top cover.. Anyone have some good ideas for that?

I am currently printing out the parts for the lower section, getting things sorted with OBS and a new youtube / twitch channel and will multi cast to both of them.. When that happens I will let people know before hand and try and pick a time that is globally good for everyone. I might alternate between EU and NA time zones if (and probably will be) multiple streams for each section.

RE: Core One + Community project build

Philip Sørensen — Thu, 16 Apr 2026 09:48:37 +0000

I made a recirculating HEPA+carbon filter you can fit in the left back corner without modifying the major structure of the printer: https://www.printables.com/model/1674847-edgecase-the-non-invasive-recirculating-internal-h. If you have any spare 4020 axial, 4028 axial, or 4020 radial fans, then this one is really easy to print and mount. This goes well with mods for sealing the chamber. I have also made some snap-in corner plugs you can use: https://www.printables.com/model/1426326-core-one-corner-plug-no-magnets-needed-avalible-as

I'm also making a chamber heater for the right back corner. I'm still developing this, but I expect to have it up next week. In the meantime, here is a teaser picture:

RE: Core One + Community project build

Nate — Fri, 10 Apr 2026 14:55:23 +0000

Can it play Doom?

RE: Core One + Community project build

Thomas Lovén — Sat, 04 Apr 2026 12:51:10 +0000

I can't edit my post to add a link?

https://forum.prusa3d.com/forum/user-mods-enclosures-nozzles/i-put-a-revo-nozzle-on-my-nextruder-heres-how/