dayton j grant on wed 28 feb 01
I have a home-made wheel,
its made out of :
a one half horse power
'Baldor' DC motor and the controller
that they sell with it
(they have
distributors in every major city)
I have the motor connected
to a ten to one reducer so the motor goes the long way diaganolly across
the underside of a two foot square steel table that is a half inch thick
and has four legs I have a stainless steel wheelhead that is a half inch
thick and sixteen inches across(true to within 1000th of an inch)
attached to a one inch diameter shaft that is held in the reducer with a
groove and a square pin down the lengnth of it so it can be raised or
lowered as I choose I only use one half horsepower because I throw very
hard clay and I dont wanna break any bones if I make a wrong move one
half horse is all you need and I think anything more is dangerous if you
dont know how to handle it the reason I use the 'Baldor' brand is because
its rated for constant use and the controller is strong and steady at
very slow speeds which is important for precision throwing you can use
any brand that is strong and steady at slow speeds and I dont use a pedal
I use a dial that is mounted up near my hands I never never change the
speed of the wheel while I'm touching the clay and I dont use much water
so I can use a dial I would suggest this for any begginner,so thats your
best bet for making your own wheel as far as I know I think wheels of
this quality will be commercially available soon good luck
Fredrick Paget on wed 28 feb 01
Dayton,
What you have described is very similar to an old wheel made by A. D.
Alpine about 20 or 30 years ago, which I am currentlly trying to get
working. It was donated to our local community college where I am taking
art courses. It came without the controller and I have been trying to build
a controller box to run it with poor results.
It has a 1 HP Baldor wound field DC motor and a 10 to 1 gear reduction
into a vertical shaft with the wheel head mounted on it. The Baldor motor
is a real piece of work and looks like it would last for ever.
How did you mount the Baldor controller? It comes with a speed control
by a dial. Have you investigated using an external potentiometer ("pot") in
a foot pedal and what value (ohms) is needed? The Alpine uses a foot pedal
with a "pot" in it that I could easily change to a different value.
Best regards and congrats on a fine piece of work,
Fred Paget
>I have a home-made wheel,
> its made out of :
>a one half horse power
> 'Baldor' DC motor and the controller
> that they sell with it
>...)
>I have the motor connected
> to a ten to one reducer so the motor goes the long way diagonally across
>the underside ....
>dayton j grant
>From Fred Paget, Marin County, California, USA
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