I purchased the official enclosure for my K2 SE and immediately started having problems with overheating around the printhead, causing filament jams and breaks. This was frustrating because the enclosure was intended to reduce noise and help keep dust out of the printer.

There are already many lid riser and vented lid designs available, but for my use case I simply wanted better ventilation while keeping the existing lid structure. The K2 SE enclosure lid is already physically large, so raising it further felt unnecessary. I also have no plans to print ABS or similar materials, and the rear of the printer is not fully sealed anyway, so a complex adjustable vent system seemed excessive for my needs.

Instead, I designed replacement vented PLA panels for the existing enclosure lid. Two panel designs are included:

A half-height rear panel with two horizontal vents. The large lower opening provides plenty of space for the PTFE tube while also improving ventilation.
A full-height side/front panel with 18 vertical vents arranged as two banks of nine slots.

In my setup I use:

the rear vented panel
and one side vented panel

This preserves the stock appearance of the printer and enclosure from the two most commonly visible sides.

The panels were designed by carefully measuring the original acrylic panels, including:

overall dimensions
screw-hole locations
countersink sizes and positions

I then worked iteratively with ChatGPT to refine the designs until I achieved the final versions provided here.

Four STL files are included:

Rear Panel
Rear Panel - Split
Main Panel
Main Panel - Split

The full panels are larger than the K2 SE build area, so split versions with alignment connectors are also provided. I printed the split versions, assembled them using superglue, installed them into the lid, and used masking tape as clamps while allowing the glue to cure in place for 24 hours.

The included .3mf contains:

two build plates
my print settings
and the orientations used for printing

K2SE Lid Vents

0.2mm layer, 4 walls, 20% infill