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K2 Plus Poop Chute

The Creality K2 Plus drops its purge out of a small port on the back panel, and from there it goes wherever gravity takes it. My printer sits at the back edge of my desk, so I wanted that purge carried down the back of the machine and into the trash can under the desk. So I designed this chute, and a small funnel to go with it.

The black poop chute installed on the back panel of a Creality K2 Plus, curving down between the rear fans to end beside the power inlet

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One 3MF with two plates, Chute and Desk Funnel, and the tested PET-G profile already set up, plus an STL of each part for bringing your own. It uses the printer’s own screws — no extra hardware.

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The 3MF is the faster path — open it and slice. A full print & install guide is attached to the Creality listing.

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Print & Install Guide

The same guide attached to the model listings, hosted here so you can read it before you print — PDF · 5 pages · 775 KB

Open the Guide

Before You Slice

Check Your Setup

Made for the Creality K2 Plus — the only model I have measured. The chute is 132 × 325 × 25 mm.

The desk funnel is optional, for a printer at the back edge of a desk. The back of the printer needs to sit 13 mm in from the back edge of the desk, and the funnel’s exit starts 57 mm below the desktop, so a desktop up to about 55 mm thick clears it. The chute ends about 110 mm above the desk, leaving a small gap above the funnel.

Install tip. The factory screws are coarse self-tapping screws, not M3. Start each one through its tab until about 1 mm pokes out the back, then use the tips to find the holes in the printer. They go in nicely.

What Makes It Work

Clear of the Fans, Clear of the Switch

The waste port sits above the rear fans and the power inlet, so a straight chute would block one or the other. This one curves between them.

Uses the Stock Screws

It mounts on the two screws either side of the waste port. Take them out, put the chute on, screw them back in. No extra hardware.

Close-up of the top of the chute held to the back panel by two tabs, curving down past a fan grille

Clear of the Fans

The chute curves down between the rear fans, and its walls stand 3 mm off the panel wherever they pass over a fan grille, so the fans keep breathing.

Looking down into the top of the desk funnel, with the end of the chute just above it

Clear of the Power Switch

The chute ends beside the power inlet, not over it, so the plug and the switch stay easy to reach. The open back means the panel forms the fourth wall, and purge slides down smooth plastic.

A hand holding the desk funnel on the desk edge directly under the end of the chute, beside the power cord

Optional Desk Funnel

The funnel sits on the desk edge right behind the printer, catches the purge, and turns it forward under the desk into a bin.

Print Settings

Slice It Right

These are the settings baked into the 3MF, sliced on a Creality K2 Plus with a 0.4 mm nozzle. Open it in Creality Print or any slicer that reads 3MF projects and it is ready to go.

The chute is 1 h 41 m and 76 g. It prints lying flat, open side down, with a little tree support (0.3 g).

The desk funnel is 3 h 56 m and 161 g. It prints standing up, with a 5 mm brim.

Supports

Tree, chute only

Layer Height

0.20 mm

Walls

Top / Bottom

5 / 3

Infill

15% Gyroid

Z Anti-Aliasing

Material

PET-G · 250 °C / 70 °C

Plate

Textured PEI

Slice data: the chute is 1 h 41 m and 76 g, the desk funnel 3 h 56 m and 161 g, in PET-G

More models and tested slicer settings on my Creality Cloud profile.

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Released under CC BY-NC-ND 4.0 — free for personal use, credit appreciated, no commercial use or derivatives.