Cat Toy Ball
by BrianEnigma, published
There are some cat toys at the house that are particularly popular with the local residents. They are simple hollow spheres with cut-out slots. They are great for kitties to kick around â€” small and light. After staring at one for a few minutes, piecing out the geometry, I realized that this would make a great instructional design for an introduction to 3D CAD modeling using simple geometric shapes and boolean transforms.
In the main image are the original (left), render (middle), and printed (right) versions of this object.
The step-by-step process of building the model is on my blog, here: http://netninja.com/2012/03/24/from-atoms-to-bits-to-atoms-a-cat-toys-journey/
The final fully parametric OpenSCAD file is attached.
I used 2 shells in my Print-O-Matic settings. If you print this on a MakerBot (or similar), you may want to enable printing supports and a raft in ReplicatorG.
v2 - Rotated, as per the great suggestion left in comments by MikeO. This gives the design more resilience against the drooping found in the original version, meaning you probably won't need supports.
original - The original. Even with supports enabled, the upper slats would overhang and the first few layers would droop a bit. A small file or hobby blade will help clean that up.
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Cat Toy Ball by BrianEnigma is licensed under the Creative Commons - Attribution - Share Alike license.
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