X1C vs. Centauri Rear Similarities...

[Kurt The 3D Printer GUY!!]

...and - NO - this is NOT a Butt joke!

I'm curious to know if the rear printer layouts are the SAME between both printers - the Bambu X1C vs. the Elegoo Centauri Carbon (1) units. Rear layouts - as is - fan grill locations, Poop chute size opening & location - as well as the Screw holes around the poop chute and fan grills. 

I'm working on some stuff for my CC1 - and I truly Wonder how much it would carry over to the X1C (and possibly the H2D). 

-K

[Sean]

The Open Centauri group has ECC cad models posted on their GitHub page. 

https://github.com/OpenCentauri/cad

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[david merten]

I am interested in your work, since i am a new cc owner. I think the idea of recirculating the air through filters is the way to go. 

       David

[Kurt The 3D Printer GUY!!]

Ouch!!!!

Thanks Sean. I should have Researched that before - as it would have made my current projects WAY EASIER!!! Ugh...

Stupid mistake on my part...

-K

[Kurt The 3D Printer GUY!!]

Thank you for your kind words, David. I will keep you posted on my progress. I agree about recirculating. I will probably make updates back to my other thread (or potentially make a new one). 

Honestly - the Filter enclosure I downloaded - it kinda SUCKED - for several reasons:

1. The filter did NOT fit right! 
2. And - what is most annoying - people these days don't have a CLUE About DFAM - and making 3D Designs such that you do NOT need Supports! 

So - I'm probably going to be doing a Total revamp of that unit I printed - to make a Better Fit - and Better handle on it (they one they did was STUPID) - and - redesign for a single recirculating unit - AND again - with DFAM in Mind and NOT needing Supports! 

-K

[Bryan Eckert]

Kurt the X1C filter is internal, in the same spot where the H series has their chamber filter.

Mandic did a recent video where he sealed up his Core 1 machines with a flap based design (not unlike the H2 series has) for printing ASA (mainly to retain heat). Might work well for your CC. Just realize looking at the rear the right fan is pulling air into the machine.

Here's an image of the X1C rear:
https://wiki.bambulab.com/x1/maintenance/replace-ac-board/350px-10_screws.png

The grille all the way to the right is intake for the printer control board. The left is exhaust.

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[Kurt]

Hey Bryan,

Thanks for the feedback and the Pic. Yeah - I see it's a Completely different rear configuration. I see the funny kind of embossed shape in middle back of X1C - and I know that's the spot where it has part of the filament swapping and driving mechanism that is fed to from the AMS. Bummer the back is So Different - which just means my designs will be specific to the ECC units. Even the purge chute exit is a bit different of a configuration - as the ECC has 2 screws at the bottom of it. And, yeah - I'm working on a flap  unit design for the ECC. I wonder if the one Mandic did - will just flap open when filament purges hit it. Do you have a link to the Mandic design - to the video you speak of? I would like to check it out. 

-K

[Bryan Eckert]

https://youtu.be/GiGD0y0b8Oc?si=JwImG54p4zzWolcX

His mod is for the fans (about the 5 minute mark) , the Core One does not have a poop chute, it uses a prime tower instead.

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[Kurt The 3D Printer GUY!!]

Understood - no poop chute...

[Kurt The 3D Printer GUY!!]

Sean - I am NOT an Expert at GitHub - but, Have used it a little bit over time (including a good bit whilst at VisionMiner). But, I'm looking around - and I see CAD files for Parts - to replicate parts - but, I am REALLY Looking for a Cad mockup of the Back of the printer - basically so I know EXACT Locations of all the Screw holes, vents and poop chute! Is it actually there on GitHub and I am just missing it???

HELP!!!!!!!

-K

On Sunday, February 22, 2026 at 2:22:07 PM UTC-5 Sean wrote:

[Kurt The 3D Printer GUY!!]

David - I'm trying to get back to this project now - as I've been posting about this in SEVERAL Threads! I will keep you posted on my progress.

Good news - I did a quick Eye ball on the situation - and the location of the fan vents & poop chute - and all the Screw holes ALL Exist within the volume of the Build plate - so - the hope is to make a unit that prints in one piece - the Main part - all in one shot - that fits over everything! But, I will print multiple parts that will be added on to the Main part. 

More Details coming soon...

-K

P.S. Am having a BLAST with my Centauri lately - and thus why I want to Push Forwards on this Project!

On Sunday, February 22, 2026 at 2:22:59 PM UTC-5 david merten wrote:

[Sean]

I dug the step file out of all the extra gobbledygook they had in the cad zip. I stored it on my google drive if you want to grab it.

https://drive.google.com/file/d/1GfDaerUdJvFReDzYc9v_4HbNZe6ETbjR/view?usp=sharing

[Kurt]

Thanks SO MUCH Sean - you ROCK!

I will DL this tonight when I get home.

-K

[Kurt The 3D Printer GUY!!]

Darn-  the CAD file is SO MASSIVE - that it's Totally Choking my PC!

Anyway - will keep you posted...

Thanks again Sean!!!!

-K

[Sean]

I can try to pull out just the back panel is that would help. It'll be tomorrow I'm heading out the door to do some astrophotography and won't be back until late. 

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[Kurt The 3D Printer GUY!!]

I'm actually in the middle of doing exactly that. I actually "pegged" the holes in the back - made a cylinder - replicated it as I found each of the screw holes (just the ones around the fan grills & the Chute) - and, I also isolate just the back panel. Sadly - I did NOT do a Save after making all the Pegs - and then isolating the back panel - and now my PC is Choking. But, I'm going to leave it alone. Hopefully it will finally be responsive - to finally then save the file - as I DID try and delete ALL the rest of the CAD parts except the back panel...

-K

[Kurt The 3D Printer GUY!!]

I was able to save the file - that represents JUST the back panel - and my pegs of the hole locations! So - Sir - I am good. No further work required on your end...

-K

On Thursday, March 12, 2026 at 7:30:26 PM UTC-4 Sean wrote: