Date:         Sun, 7 Aug 2005 12:06:30 -0500
Reply-To:     John Rodgers <inua@CHARTER.NET>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Rodgers <inua@CHARTER.NET>
Subject:      Re: Mechanical Geniuses please note! (NVC)
In-Reply-To:  <42F603C9.9000900@charter.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Thanks  Everybody for the inpout on my project. I see I need to give
more information.

I am building what is known in the pottery and mold making world as a
"Plaster Wheel". It is somewhat like a potters wheel but the wheel head
is made of plaster, measures 24 inches in diameter and 6 inches thick. I
have to have enough horse power to get this thing turning from a
standstill, and to keep it turning under a load. The static load it will
carry can be up to 100 pounds. It functions very much like a vertical
lathe, but cutting plaster instead of wood, so there are also turning
loads imposed by the turning tools.  Speed control should be smoothly
and infintely variable from 0-200 rpm at the wheel head. I'm hopping
that I can get some sort of electrical speed controller that is like a
potentiaometer which will allow me to just dial in whatever speed I
want. That would be the ideal. Will consider other methods, though.

Thanks

John Rodgers
88 GL Driver
John Rodgers wrote:

> Fella's - and Ladies .... I need a little help.
>
> I  need to  build a  machine that uses a 1 HP Capacitor start 120v
> electric motor that turns at 3350 rpm. The motor - by way of pulleys -
> will drive a shaft whose rotational speed  should have a controllable
> range from 0 to 200 RPM.
>
> I'm hoping that some of you folk out there know about such stuff and can
> help me with suggestions on how to get it done.  - speed controllers,
> variable diameter pulleys, or what ever. I am open to suggestions.
> Specifics and specifications would be of a big help.
>
> I would appreciate any input.
>
> Thanks.
>
> Regards,
>
> John Rodgers
> 88 GL driver
>
>