Custom Sphere Maker

Here is another good example of my style of Model Making. Being a rock hound, I often tried to make spheres out of stone by hand. This took a long time and not perfect results. Then after attending a rock show I saw 'sphere making' machines operating at several booths. After taking notes I constructed this. It has 3 geared down motors, plumbing pipe caps mounted on them to hold the rock and to grind. A BBQ rotisserie with metal tubing and a jar, as it slowly spins is drops the grit a little at a time. A water bottle mounted on a stick drips water on the stone to mix with the grit to make a slurry. I really like this piece, below is a sample of a sphere I made, from rock collected in the mountains. You can sit and stare at this machine working for a long time and not get bored, but that doesn't make it go any faster.