On 7/6/19 9:26 am, John B. wrote:
On Thu, 6 Jun 2019 14:01:28 -0000 (UTC), news18
wrote:

On Sun, 02 Jun 2019 16:48:57 +0700, John B. Slocomb wrote:

See https://www.youtube.com/watch?v=-9gQ1KRhesM

In the narration he mentions that a 24 speed gear set, or even more,
would be perfectly feasible. No wires, no cables, either.

Just a rehash of old ideas. The same reasons for the failure of shaft
drives will see it fail again. Of couses, as ther is electronics
involved, that will introduce another pile of reasons for it to fail.

Why did shaft drives fail? Complexities?
I *think*, generally heavier and less efficient than a chain. Of course
they could be made robust enough to be reliable, but that generally adds
weight.

--
JS