The original project was made from closely spaced, cardboard discs centered on a threaded steel rod. The rotor assembly was suspended in a bathroom tissue role by a supporting assembly. The aviation grade bearings were housed in retaining assemblies. When a stream of air from an electric air pump was injected into the manifold, the stream spiraled inward between the discs toward exhaust ports surrounding each disc's center. The stream exited the turbine along the axis of rotation. Peak rotor speed was measured at 2,220 RPM. Note that the following instructable assumes that you have a fully functioning CTT that is ready for painting and customizing.
Anything attached to the rotor shaft could fly off suddenly if not properly secured. In addition, the sudden decompression of CO2 as the gas escapes from the cartridge produces extreme cold. Use heavy gloves when handling the cartridge.
Step 1: Items You Will Need
300 Grit Sandpaper
Ceramcoat All Purpose Sealer (http://www.deltacreative.com/pcid/86/Tips-Technique.aspx) or something similar
Hobby Paint Brush
Silver Marker Pen
Spray Paints: Black, Blue, Brass, Clear Enamel, Copper & Silver
Spray Paint Safety Mask
Popsicle Sticks to Use as Rotor Shims (4) - 1.5 mm thick
25g Threaded CO2 Cartridges w/Regulator (http://www.innovationsaz.com)
38 cm plastic zip ties (2)
Plastic Propeller & Mounting Hardware