DIMPLE BALL MODELS
The model project involves two sphere models with a symmetrical pattern on its exterior surface similar to a golf ball and a matching outer shell half-sphere that will have the same pattern and fit/mate onto the sphere.
The model will be in either Autodesk Inventor or Autodesk 123D and be scalable and modifiable by me.
1. The spheres will be 20mm in diameter.
2. The first sphere will have an extruded dimple pattern with the matching outer half-sphere shell that will have an indentation pattern to match the extruded dimples. It will fit on to the sphere and the two parts will mate together with the extrusions fitting into the indentations.
3. The second sphere will be identical to the above except that the sphere will have the indentations and the outer shell half-sphere will have the extrusions.
4. The outer shell can be about 3mm thick.
5. Obviously the extrusions must be slightly smaller than the indentation so that the surface of the sphere and shell almost touch. Perhaps a .1mm to .5mm tolerance, but the dimples/extrusions will touch so as to not allow for movement due to a loose fit.
6. The dimple pattern will cover the entire sphere except for a 10mm diameter area where it will mount on to a pole. This is represented as the 10mm hole in my sample model.
7. The sample flat model provided as an example is only to show the idea of a symmetrical pattern.
8. The sample sphere has only a single dimple for illustration purposes.
9. The dimples will be sufficiently close together as in the cube example. This should allow the outer shell of the sphere to be finely adjusted around the sphere to different positions.
I have attached my sample model in STEP, STL and native Autodesk 123D format for reference.