An excellent little video, by Chronova Engineeering:
https://youtu.be/_VixT_1qCXg?feature=shared
Covers a lot of ground, and the close-up photography is excellent.
MichaelG.
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Edit: __ and for convenience, here is the ‘prequel’
https://youtu.be/wKVqLTzh_z4?feature=shared