FreeEnder 2 Pro 50mm to 40mm Fan Noctua adapter
Printables
2.714 model
Free
Free40mm Axial to 50mm Centrifugal Fan Adapter
Thingiverse
Free50 mm axial fan to 40 mm axial fan reducer
Thingiverse
Free50mm Radial (centrifugal) to 40mm Axial Fan Adapter
Thingiverse
Freeadpater to use 50mm fan on 40mm mount.
Thingiverse
Free40mm Axial to 50mm Blower Adapter
Thingiverse
Freefan 40mm to ductedfan 50mm
Thingiverse
Free50mm to 40mm fan adaptor
Thingiverse
Free40mm to 50mm Fan Duct Adapter
Thingiverse
Freefan adapter bracket dual 40mm to 50 mm diamond extruder
Thingiverse
Free40mm to 50mm fan adapter
Thingiverse
FreeCR10 S4 Internal 50mm fan to 2x 40mm fan mount
Thingiverse
FreeEstrusor fan 50mm to 40mm
Thingiverse
FreeFan adapter 40mm to 50mm small
Thingiverse
FreeCR-10 50mm to 40mm Adapter for internal cooling mount
Thingiverse
Freereducer - 50 to 40 mm fan for Electronics Cover
Thingiverse
Free50mm to 40mm cooling fan adapter
Thingiverse
Free40mm to 50mm fan low profile
Thingiverse
FreeFan Adapter 40 mm to 50 mm
Thingiverse
Free40 to 50 mm fan adapter
Thingiverse
FreeQQS 5015 (50mm) blower fan to 4010 (40mm) blower fan
Thingiverse
Free50mm to 40mm driver flange for PrusaBeat Headphones V2
Printables
FreeFan adaptor 40mm to 50mm
Thingiverse
Free40MM to 50MM Speaker Adapter Ring
Printables
FreePetfang bullseye compatible adapters 40mm radial to 40mm axial and 50mm axial fan
Thingiverse
FreeFan conversion 40mm to 50mm for Briss fang
Thingiverse
Free50 mm to 40 mm fan adaptor
Thingiverse
Free40 mm to 50mm fan mount
Thingiverse
FreeFan adapter 50mm to 40mm
Thingiverse
Free40mm to 50mm fan adapter for XYZ Di Vinci Junior
Thingiverse
Free50mm to 40mm Fan adaptor
Printables
Free40mm to 50mm Right Angle Fan Mount
Thingiverse
Free92mm Fan + 40mm Stepper Coolers for Big Tree Tech Manta M5P Case V0.2
Printables
Free40mm fan adapter for vzbot cnc toolhead using Rapido hotend
Printables
FreeQIDI Q2 40mm to 120mm Fan Adapter
Printables
FreeNvidia Tesla V100, GPU Cooling Shroud For 40mm fans.
Thingiverse
Free40mm print in place pipe clamp
Thingiverse
FreeM42-Mount Adapter for Canon AF35ML 40mm f/1.9 Lens Cell - Requires Focusing Solution
Thingiverse
FreeDrawer organizer 200 × 140 × 40 mm, six cells
Sketchfab
FreeEVA 2.4 40mm Axial partcooling backplate
Printables
FreeDual Mean Well UHP-200 DIN mount with 40mm fans
Printables
FreeSnapmaker U1 heatsink 40mm 4010 fan mount duct
Printables
FreeAperture Science 4010 40mm fan cover / grill (Portal)
Printables
FreeMovement tray - round base to square 40mm diameter
Thingiverse
Free40mm hexagonal fan cover
Printables
Free+40mm longer
Printables
Free40 mm Fan Cover (Snap Version)
Printables
FreeU1 Driver Duct 40mm Fan M3 Heatset insert
Printables