Exact-model guide

Creality K1: upgrades that fit

Every part on this page names the Creality K1 in its manufacturer’s own compatibility documentation, for the stock configuration. If your printer has a modified hotend, extruder, or bed, check with the part’s maker before buying.

Filament diameter
1.75 mm (manufacturer spec)
Stock extruder
Direct drive (manufacturer spec)
Hotend maximum
300 °C (stock hotend) (manufacturer spec)
Build chamber
Enclosed (manufacturer spec)
Identify yours
Manufacturer page ↗

Nozzles for the Creality K1

2 verified options with a manufacturer-documented fit. Compare in the full nozzles guide

ProductBest forSkip ifLink
Creality "Unicorn" Quick-Swap Nozzle (0.4 mm, 1 pc (Amazon model AMUS-CU-3D-AC-V3-Nozzles-2.0-1P))Ender-3 V3 or Ender-3 V3 Plus owners who want a spare stock-style nozzle that can handle CF-filled filaments.You have an Ender-3 V3 SE or KE with its stock hotend.View on Amazon (opens Amazon in a new tab)
Creality Genuine E3D ObXidian High Flow Nozzle Assembly (Unicorn) (0.4 mm, 1 pc (Amazon model 3D-AC-PZ-E3D-YTPZ))Ender-3 V3 or V3 Plus owners who often print CF-filled filaments and want a coated, high-flow nozzle.You have an Ender-3 V3 SE or KE with its stock hotend, or only print PLA.View on Amazon (opens Amazon in a new tab)
  • "Unicorn" Quick-Swap Nozzle: documented for K1 (with integrated nozzle) only.
  • Genuine E3D ObXidian High Flow Nozzle Assembly (Unicorn): documented for K1 (2024) only.

Build plates for the Creality K1

2 verified options with a manufacturer-documented fit. Compare in the full build plates guide

ProductBest forSkip ifLink
Creality Epoxy Resin Build Plate 235×235mm (235 × 235 mm epoxy resin coated spring steel plate)Ender-3 V3, V3 SE or V3 KE owners who want an official alternative to PEI.You need documented material and temperature guidance before choosing a surface.View on Amazon (opens Amazon in a new tab)
Creality K1/Ender-3 V3 SE Smooth PEI Build Plate (235 × 235 mm smooth PEI spring steel plate, no magnetic base (per Amazon listing))Ender-3 V3, V3 SE or V3 KE owners who want a smooth PEI surface for glossy PLA bottoms.You need a magnetic base as well; this listing is the sheet only.View on Amazon (opens Amazon in a new tab)

Documented for other Creality models, not the Creality K1

These parts are easy to mistake for a fit. Their makers name a related model but not the Creality K1, so we don’t list them above.

Filament notes for the Creality K1

Start with Best Filament for the Creality K1, K1C and K1 Max (2026), which covers what the printercan and can’t print according to the maker.

The Creality K1 uses 1.75 mm filament. Every spool in our filament shortlists is 1.75 mm, but check the exact listing before you buy. The stock extruder is direct drive, which generally handles flexible filament more easily than a Bowden setup. Automatic material systems are a separate constraint.

For a material direction matched to your printer, use the filament finder with the K1 preselected.

Care gear for any printer

Dryers, storage, and tools don't depend on your printer model. These shortlists cover them.