The entire final model was made by hand, without the use of CNC or 3D printers. The lock, mount, brake, and arm rest lever were carved from high density ren shape foam, and then painted. The arm rest plates were laser cut acrylic that was then thermal formed and painted. The arm rest foam is a closed-cell foam that was cut, molded, lightly sanded, and painted. The stem, drop bars, and allen screws were taken off my old bike, cut to size, and painted.