Koch, George on tue 25 oct 05
Hi Liisa,
I bought a Shimpo several months ago and like the smoothness and control
at higher speeds (including stopping almost instantly, and free-wheeling
when stopped), BUT IT IS VERY JERKY AT SLOW SPEEDS. Shimpo replaced the
motor controller and software and that didn't help. They still have the
wheel in for repair (it's been many weeks), and tried to tell me direct
drive motors work this way.=20
Not true. It's an engineering/design problem, not a physics problem (my
first degree is in physics). So, until they solve this jerky wheel
problem, it can't be used at slow speeds. Unacceptable for a real
product for real potters. They do make nice products overall, and
they've been pretty friendly in customer service, so I assume they will
solve this.
An assurance from Shimpo about this would be nice for all of us.
George+
_________________________________________ .=20
Rev Dr George Byron Koch, Pastor (and Potter) .=20
Church of the Resurrection .=20
West Chicago IL 60185 .=20
www.resurrection.org .=20
Isaiah 64:8b We are the clay, and you are the potter. We are all formed
by your hand.
>>
Liisa Reid said:
I'm looking for a wheel that will be rock steady at not more than 4
revolutions per minute and that can accelerate and decelerate really
smoothly.
I believe that the Soldner wheels are up to it, but what about the
others? Or any other suggestions? Are the soldners still as reliable
as they used to be?
Recently, I tried a Shimpo Whisper which, while delightfully quiet, was
pretty jerky on changing speeds. Can this wheel be adjusted to be
really smooth, or is that jerky stiffness just part of the direct drive
gear system?
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