Parametric fan blades
Introduction
This is a customizable, 3d-printable set of fan blades that can be attached onto
broken DC brushless fan hubs.
Pre-rendered STLs and images can be found on
thingiverse.
Instructions
- Cut off the remaining blades of your fan hub.
- Grind down the stubs so you get the fan hub as round and balanced as
possible.
- Measure the diameter of your fan hub in mm, add 0.5 for a bit of clearance,
and specify that in
hub_d
.
- Measure the outer diameter of your fan hub in mm, subtract 0.5, and specify
that in
propeller_d
.
- Measure the thickness of your hub, and specify that in
blade_thickness
.
- Check which way your fan spins, with the fan facing you (wind blows away from
you, towards the frame). Specify that in
blade_direction
-- -1
for
counter-clockwise, 1
for clockwise.
- Print with around 0.1mm layer height, or whatever works best for you. The
overhang can be tricky, so the lower you go without overheating your part,
the better. Solid, because there isn't any area for infill anyway.
Required libraries
You need to install the following into one of
OpenSCAD's library locations