Modular 120 mm fan spacer — free open-source project
An open-source 120 mm fan spacer with a twist: print one or more copies of the same part and rotate them to create different visual combinations on your case or radiator fans.
The download includes the 3D model (OBJ format, ready for any slicer), a print and assembly guide in PDF, and a chart of the 6 symmetric combinations: pointed corners at the ends, soft ends, soft on top, soft on bottom, and three-module layouts with the center up or down. Every configuration uses the exact same part, simply rotated.
The 6 combinations
Specifications
- Fan size
- 120 mm standard mounting holes
- File format
- OBJ 3D model + PDF guide + combinations chart
- Modules
- Print 1–3+ copies and rotate them to combine
- License
- CERN-OHL-S-2.0 (open hardware, strongly reciprocal)
Use the same material and print settings for all copies so the modules look uniform once combined.
Files are shared under the CERN Open Hardware Licence v2 — Strongly Reciprocal (CERN-OHL-S-2.0): you can study, modify, make and distribute the design, including commercially, as long as derivatives are shared under the same licence.