H2 Debris Catcher Mat (Fully Printable, No Z-Loss)

Keep the bottom of your Bambu Lab H2-series printer enclosure clean by catching the small bits that drop during printing and nozzle wiping, like stray strings, crumbs, and debris. This low-profile floor mat / tray / diaper is designed to lift out easily for quick cleanup.

Compatible with: H2C / H2S / H2D

Key features

• Edge-to-edge coverage: Designed for a precise, wall-to-wall fit to maximize the area where debris gets caught.
• No lost build height: Precise cutouts let the bed lower fully to the printer floor, so build height is not reduced.
• Low-profile and sturdy: Thin without feeling flimsy, and the full mat comes in at just over 160g of filament.
• No extra hardware: Fully 3D printable, no screws required, the hinge uses standard 1.75mm filament, and the front/back sections lock together with 3D printable clips.
• Hex detail: I designed the surface with a hex pattern as a nod to the hexagon details on the printer floor, so that element is still reflected even though the mat covers the original.

Print and assembly

• Prints in 4 parts: Back Left, Back Right, Front Left, Front Right
• Front and back connect with 3 clips each
  • These are slightly oversized for the cutouts to ensure a tight fit, but you can adjust them based on your printer's tolerances. Too loose of a fit and the front and back won't have a sturdy connection.
• Left and right sides hinge together using a length of standard 1.75mm filament
  • The hinge allows the mat to fold over 45 degrees on each side into a V-shape, making it easy to remove in one piece.

Bonus: Each piece fits on a smaller printer like the Bambu Lab A1 (but not the A1 Mini).

Hinge fit tips

• Test each end of the hinge hole with a short piece of filament first.
• The hinge holes are designed to accept filament easily, but if your printer runs tight:
  • Gently widen the entrance with a small screwdriver (or similar), and/or
  • If the inside of the hinge path is rough, run a bit of abrasive filament back and forth through the hole to smooth it out.
• If feeding the filament is still a struggle, use pliers for grip and push while holding the filament close to the hinge entrance.

Material note

I printed this in PLA, but I recommend using a filament with a heat deformation temperature higher than the hottest chamber temperature you plan to run.