A set of 17 Piano Wire Tires is made from 34 pieces of molded ABS plastic. Currently, we’re using a manually-operated injection machine (not intended for production volumes), and this has limited our supply. We will eventually have these produced by a plastics company, but the tooling expenses and high volume part costs are preventing us from making that investment until a later time. For now, we will keep making them as fast as we can.
This video shows part of the process of molding 1/2 of a tire. Part cool-down time is edited out, as is the process of setting up for the next cycle.