Reply to "Handlebar Mounted Counter"

tomriegelMember

I was able to build on the previous assembly to produce a working model.
Using a 1/8” steel shaft and two 1/8”x5/16” bearings I mounted the 3/16” Delrin gear into a sandwich of ¼” Delrin. The protruding shaft was cut to nest inside a moped speedometer cable I ordered a while back, and the slotted connection allows for minor misalignment of the shafts. A bulkhead was fashioned by counter-boring a bolt, cutting it to length, and threading it into another layer of ¼” Delrin. See below.

The assembly is sturdy, and mounts to an unmodified chassis used in the base model.

It fits on a bike, and the cable comes up in the plane of the front wheel. It doesn’t follow the fork at all, but it is better than sticking out sideways.

Spinning the wheel slowly shows the rig operates with very little friction.

I’m off for a test ride, more as it develops.

9/6/082:03 PM

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