Full Linear XY-Gantry Mod for Creality K1 Series
(K1 and K1C and K1 Max with full CFS support)
Upgrade your Creality K1, K1C, or K1 Max with this Full Linear XY-Gantry Mod for unmatched precision and stability.
Featuring MGN12 linear rails, idler gear system, and a lightweight carriage, this mod eliminates VFAs, keeps full stock build volume, and is fully compatible with LiDAR & AI functions.
Includes STL files, photo assembly guide, Klipper reference config, and dedicated full support with CFS for K1 & K1C & K1MAX.
✨ Key Features
- High-precision MGN12 linear rail system for XY axis.
- Replaces stock idler pulleys with idler gears → reduced VFAs.
- Fully compatible with LiDAR and AI features (on K1MAX).
- Preserves full stock build volume.
- K1, K1C, K1 Max version supports CFS (dedicated files included).
- Optimized lightweight carriage design – 70g lighter than stock gantry.
🔧 Compatibility
- K1 Max – full support + dedicated CFS extension (firmware 2.3.5.27 recommended).
- K1 & K1C – full support + dedicated CFS extension (firmware 2.3.5.33 recommended).
- LDO Stepper Motors – optional upgrade (requires printer.cfg adjustment).
📦 Package Includes
- 12+ STL files (XY blocks, carriage, stepper mounts, Y-endstops, Z-guide).
- PDF assembly manual with step-by-step photo instructions.
- Reference Klipper config (printer.cfg).
- ADDONS.zip – optional variants (e.g. Skeletor Fan support).
- CFS.zip – extra printable parts for K1 Max CFS compatibility.
- CFS for K1 and K1C.zip – extra printable parts for K1 and K1C CFS compatibility.
🛠️ Required Hardware
Basic tools like:
- TORX Screwdriver,
- Soldering Iron
Key parts include (depends on printer version, more details in manual):
- MGN12 linear rails (K1MAX: 400mm, Z1 class or equivalent, K1 or K1C: 320mm, Z1 class or equivalent) × 3
- MGN12H carriages × 3
- Adjustable gears 20T × 2
- F623Z bearings × 4
- Various pulleys (3mm & 5mm inner hole, can be reused from STOCK Gantry)
- Full ISO bolts, nuts, spacers list (see manual)
- Voron M3 heated inserts × 25
🧩 Optional Stepper Upgrade
Mod is compatible with LDO stepper motors:
- LDO 42STH48-2504MAC (0.9°/step, 46mm shaft)
- LDO 42STH48-2504AC (1.8°/step, 46mm shaft)
(printer.cfg tuning required, as presented in reference configuration file)
📜 Changelog
[19.08.2025]
Some minor corrections in manuals connected with ISO parts, fixed design of bolt slot in Right Stepper Mount (no Root).stl for K1MAX.
[19.08.2025]
Added dedicated elements to provide full support for the CFS system for K1 and K1C, including short manual in PDF (CFS for K1 and K1C.zip)
[16.08.2025] BIG UPDATE!
Mod is now compatible with all K1 series: K1, K1C, K1 Max.
Added dedicated design for K1 and K1C (separate ZIP file).
Design is validated on K1 from early batch (36T version).
Note: CFS not yet tested on K1/K1C (requires cutter block redesign – coming soon).
Special thanks to Michel84 for early support when prototyping.
[12.05.2025]
Added example Klipper configuration (printer.cfg) for users with rooted machines, LDO motors, or conversion from 36T to 20T gears.
[30.04.2025]
Completed CFS compatibility update for K1 Max.
Recommended firmware: 2.3.5.27.
No printer.cfg changes required.
Added 3 printable CFS parts + separate PDF manual.
[26.03.2025]
Added ADDONS.zip – modified carriage compatible with Skeletor Fan upgrade. Includes insert holes for Skeletor mounts (optional).
[26.01.2025]
Added assembly instruction (PDF).
New lighter carriage design with cable holder.
Reduced moving mass by 70g vs stock gantry.
Weight comparison:
- Stock (519g): 2 rods = 297g, 2 blocks = 112g, carriage = 110g
- Mod (449g): rail = 260g, 2 blocks = 106g, carriage = 83g
[11.01.2025]
Updated manual with extra tips.
💡 Notes
This mod is a continuation of my earlier X-Gantry Linear Mod:
Creality K1 MAX X-Axis Linear Rail Mod (LiDAR compatibile)
Previous buyers of the X-Gantry mod are eligible for 50% discount on this design (contact me for code via email: lashigt@gmail.com).