thingiverse
Just for fun I printed this gyroscope. Designed first in Sketchup to have a 1mm gap between all parts, then scaled down in Cura to have 0.5mm gaps. Note that the included Sketchup file has not be modified.
This took about 20 minutes to make on my Anet A8 with about 60cm of material.
UPDATE
A better version has been uploaded. Spins much smoother and with little resistance!
Direct link to the original creator's page
Click the "View on thingiverse" button above to visit the original model page on thingiverse. You can download the STL file directly from the creator's page for free.
This STL file is compatible with most FDM 3D printers (Creality Ender 3, Prusa MK3S+, Bambu Lab, etc.) and resin printers (Elegoo, Anycubic). Check the original page for recommended print settings and materials.
Yes, this model is available as a free download on thingiverse. Some creators accept tips or donations.
Most STL files can be modified using free software like Blender, TinkerCAD, or Meshmixer. Check the license on the original thingiverse page to see if modifications are permitted by the creator.