Phaetus DXC for Creality K1 Max with CFS

Release Client!  This is the final update unless users come across any issues.  If you have one working, you do not need to upgrade.  I have run approximately 100 hrs of filament through it at this point in this configuration.  Feed tube length is no longer critical, but best practice is to make sure your feed tubes are as short as possible. 

6th update: RC1:  Various improvements to all parts including geometric adjustments for fit, ease of install and consistency.  Not all installations strictly require the Tube Support but it is recommended, especially if you are using the stock cable chain and feed tube location.

These are the parts to make a DXC work with a K1 Max with CFS.  

This only requires a CFS extruder kit for K1, a DXC extruder, and a few additional hardware components.  The CFS extruder kit is sacrificed for parts but not modified and can be reassembled.  The DXC is used as is.

I will make these for you if there is interest.  See Reddit for discussion:  https://www.reddit.com/r/crealityk1/comments/1pg2eh6/is_there_any_interest_in_parts_to_make_a_k1_with/

I offer this for free to the frustrated K1 community, but it is quite a bit of work getting the instruction manuals together and testing.  If this helped you, I could use a coffee :)

https://buymeacoffee.com/acsmakes

Purchase BOM (parts list)

1x Creality CFS Upgrade Kit

1x Phaetus DXC Extruder

3x Standard M3 Brass Heat Set Inserts (https://www.amazon.com/HANGLIFE-Heat-Set-Threaded-Printing-Components/dp/B0CS6VZYL8/ref=sr_1_3?sr=8-3)

1x Short M3 Brass Heat Set Insert (File 1mm off of standard if shorter than 4mm are not available)

2x M3x.5, 25mm long socket head cap screw

1x M3x.5, 8mm long socket head cap screw

1x M3x.5, 10mm long socket head cap screw

Small diameter wire, solder, heat shrink wrap

Zip tie, 2.5mm wide

I used these two as reference CAD so as not to have to remeasure everything.  Thanks guys!

OBSOLETE, KEPT FOR REFERENCE ONLY:

During tuning, I found that I have one of the CFS units with a spring that is not strong enough to force the filament roller to grab the filament.  A washer between the spring and tension lever fixes this and helps with feeding and noise.

Fifth Update: R6 Cutter block, R1 of Instruction Manual.  Improved cut sensor reliability.

Fourth Update: Rev all to R5.  Adjusted DXC Support wipe activator surface.  Previous rev could impact rear of machine.  Machines have pretty wide tolerances and this is not required on all machines.

Third Update: 1/15/26.  R2 Cutter block.  Added spring retainer to prevent return spring from self-ejecting.

Second Update: 1/13/26.  R3 Filament Tube Support and R2 DXC support uploaded.  Improved filament uptake and wiper performance

First Update: 1/12/26, 2:30PM.  R2 Filament Tube Support Uploaded.  Improved filament uptake