Toroidal Whirligig Wind Spinner
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Counter-spinning whirligig inspired by the toroidal prop designs from the "Make it fly" contest, with two ways to mount
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Updated at source:
Model information
- Source
- Printables
- Category
- Outdoor & Garden
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
Parts required:
Choose the wall mount version or the rebar-cap version.
The wall mount version requires:
- a m4x45 screw
- a m4 lock nut
- wood screws to mount to a garden post
- 2x 5mm OD .5mm wall x 10mm length stainless tube
The rebar-cap version requires:
- a length of ½" rebar (a ½" dowel or garden stake might also work)
- a m4x55 screw
- a m4 lock nut
- a m3x12 screw
- a m3 hex nut
- 2x 5mm OD .5mm wall x 10mm length stainless tube
The first version did not use metal hardware, but I found that the holes would widen over time and make the blades spin much more erratically, so I added stainless hardware. This stainless tubing from Amazon: https://www.amazon.com/gp/product/B099QNP616 is used as a bushing. Cut it down to length with a tubing cutter and use a file to clean any burrs.
Printing the spinning blades:
The blades are a little tricky to print with the narrow perimeters I'm using to keep the blades light. I print with PETG for increased UV resistance over PLA. ASA would also be a good choice. My PETG settings are based on the Prusaslicer .2mm Quality preset with the following changes:
- 1 Perimeter
- Disable skirt (to fit mk3/4 build plate)
- Classic perimeter generator (Arachne causes weak joints)
- 270C
- 60% Fan
- I also recommend an enclosure to prevent drafts
- The second blade is a mirror duplicate of the first (mirrored in the slicer)
- (no supports needed)
Printing the mounting hardware:
The mounting hardware prints with normal PETG/Quality settings.