November 2, 2025
Description
A sturdy and compact 40×40 mm fan holder designed for the Raspberry Pi 4B+.
It provides efficient cooling and easy mounting, ideal for setups running Klipper, OctoPrint, or other high-load applications.
This model features:
Perfect fit for Raspberry Pi 4B+ mounting holes
Space for a 40×40 mm fan (M3 screws)
M2 screw holes for attaching the holder to the Raspberry Pi board
Clean airflow path for optimal cooling
Printable without supports
It’s especially useful in 3D printer control setups (Voron, Switchwire, Ender 3, etc.) or other embedded projects where stable cooling is essential.
Material: PETG or ASA (for higher temperature resistance)
Layer height: 0.2 mm
Infill: 20–30 %
Supports: Not required
Print orientation: Flat side down
Cooling: On
Mount the 40×40 mm fan using M3×10 mm screws.
Attach the holder to the Raspberry Pi board with M2 screws (e.g., M2×6 mm).
Recommended fan orientation: blowing toward the CPU heatsink.
Optional: add 2–3 mm spacers between the fan and holder to improve airflow.
License:
Creative Commons — Attribution — Noncommercial
10
Adrian
