The concept, the design and the making of the Cubic Zironia Wobbler which is a unique oscillating cylinder steam engine made entirely out of cubic zirconia and gold and silver.
Working in gem material is unforgiving. You only have one chance with many pieces having to align perfectly.
I rate working on this project right up there, as one of my favourites.
Cubic zirconia gets cut with a diamond saw.
The blade has diamond particles impregnated in the edge .
It spins very fast and is lubricated with a constant water through flow.
It is not sharp in the conventional sense so my hands are quite safe.
The yellow piece was first of four center posts I made.
All the others broke. As I said, patience was strong in this one.
The center pivot is fitted loosely in the laminated cylinder and the piston has also been turned on my lathe.
The pivot and piston are made out of 14 ct gold.
I have also made the bottom end of the piston, which is the part that will go into the crankshaft.
All the CZ being roughly formed.
The pink will become the flywheel.
The maroon piece is the flywheel shaft bearing. It's colour change material, maroon under incandescent lighting and yellow under fluorescent lights.
Seriously cool material
The purple is the crankshaft wheel.
I had to see if the wobbler would actually run, before I started faceting all the individual components. So I stuck everything to a piece of glass and made some temporary silver tubing and connected it to a compressor. The cylinder has a upside down Iolite gemstone glued onto it temporarily just so the cylinder can keep pressure.
Classiest cylinder head in the world.
So then I proceeded with the crankshaft wheel, first drilling the holes with a diamond core drill. I decided to make the crank shaft wheel first. Drilling causes the most chance of breaking.
Smoothing out the holes before polishing the insides. One always has to work wet.
The standard method for faceting the wheel was used, namely, first facet one side, then use a transfer dop and facet the other side.
Here is the fly wheel completed.
I made the base out of a colour change piece of CZ.
It goes red under incandescent light.
This machine sparkled very differently under different light, and because of CZ's high Refractive Index, it sparkled quite easily. This was a critical stage, because if anything was skew, and the holes did not align, the resin would not allow me to remove anything once hardened and the project would have to be scrapped.
So I was very careful.