"George" george@least wrote in message
...

"Ken Moon" wrote in message
ink.net...

"George" george@least wrote in message
...

"Ken Moon" wrote in message
k.net...
Arch and Leo,
You could do a strobe with an automotive timing light. Using a set of
old
fashioned ignition points (remember those?), a cam lobe attached to
the
spindle, a battery and an ignition coil, you'd be all set. Of course,
you'd
have to turn the lights down, so that may increase your band aid bill
!!
:-)


Of course, that would be synchronous, and of little help. You could
get
the
same effect by shining a flood through a hole in a piece of plywood
spinning
on the outboard.
=========================
George,
I'd have to try that, but I don't think that would "stop" the rotation
like
the timing light or a strobe light.


With the strobe only synchronous with one protrusion, the flash blind
turner
would bark knuckles on the next. I meant it as a joke, but I daresay a
Fresnel lens and/or a radial slit might do.

Actually, the branches can be used to reveal themselves by interrupting
illumination by a properly placed flood with little effort. Light
background to give greater contrast.
==================================
I agree. A contrasting background and good lighting should give you the
best visual imaging of the protrutions as they twirl past your hand.

Ken Moon
Webberville, TX