Eccentric Sphere Gears
by whosawhatsis, published
Liked ByView All
Give a Shout Out
If you print this Thing and display it in public proudly give attribution by printing and displaying this tag.Print Thing Tag
This is a sphere made of gears. The hub of the gears is off-center so that the surface breaks up when the gears turn.
This is based on emmett's cube gears ( http://thingiverse.com/thing:6073 ), but with a lot of improvements to the script. Rendering still takes a long time at first (as much as 10 minutes for this version), but I've added caching so that you don't have to wait that long every time. The render statements I used to do this also stop the OpenCSG renderings from looking like something homicidal impressionist clown with dyslexia painted during an earthquake. I also made the animation work, though even with the caching it won't exceed a few fps. The most important thing, though, is that I added a module to the parameters section to define the shape to cut into gears. You can now make gears out of any STL just by dropping the "import_stl" into this module.
The gears are pretty similar, but it will only become a smooth sphere if it is assembled just right, so you should number them as you finish printing them. While looking at the center with any four faces visible, mark one of the large faces with a 1, then 2-3 moving clockwise from there. Face 5 is adjacent to 1 and 4, and if you turn the center piece so that side 5 and the remaining three sides are visible, you can number them in a counter-clockwise direction. You can also place them by identifying them in the OpenCSG rendering; gears 1 and 2 are grey, gears 3 and 4 are red, gears 5 and 6 are green, and gears 7 and 8 are blue (even-numbered gears are small, odd-numbered gears are large).
You can assemble them by threading M3 screws into the plastic of the center block. Use 16-18mm screws for the large gears and 18-20mm screws for the small gears.
Upgrade this Thing with Thingiverse AppsCustomization
Edit, personalize, or revise this ThingPrint Fulfilment
Order a print of this ThingTools and Utilities
Repair, slice, or enhance this Thing
Eccentric Sphere Gears by whosawhatsis is licensed under the Creative Commons - Attribution - Share Alike license.
What does this mean?
- You must attribute (give credit) to the creator of this Thing.
- You must distribute Remixes under the same license as the original.
- Remixing or Changing this Thing is allowed.
- Commercial use is allowed.
Show Some Love
Say thanks by giving whosawhatsis a tip and help them continue to share amazing Things with the Thingiverse community.Tip Designer
We're sure whosawhatsis would love to see what you've printed. Please document your print and share a Make with the community.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. It’s even easier to post a Make via the Thingiverse Mobile app (available via Google Play and Apple App Store).