Re: [ATM] Unique New Equatorial Platform Design

[Dominic-Luc Webb <dlwebb@canit.se>]

> One of my observations about much of this prior art is that, while
> using gravity (good!, or at least useful), many of these devices use
> it to turn mechanical gears, pulleys, shafts, etc., etc., and thus do
> not gain the advantage of smoothness or lack of periodic error.

I went through the links and found more of what I was looking for. The
present device uses a water filled jug that takes the load. I am
concerned that the jug will not compress uniformly. Maybe this could
be replaced with one of the accordian-style folding thermos sometimes
found in thrift shops, or maybe a ball, etc? I guess it could also be
possible to get some feedback system implemented to regulate the
irrigation valve.

Another way I might have done this is to have a very narrow pin-like
projection on the base of the scope pressing down on an (effectively)
infinitely large container with a larger flow. Alternatively, I might
have an air filled ball on the base of the scope sitting in a large
tank of water. In this case, telescope position is directly connected
to the water level. I would guess this would be favorable.

Regarding my earlier comments, I would be interested in the specific
valve used, maybe a pic?

Dominic-Luc Webb

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