July 10th 06, 02:16 PM
posted to sci.astro.amateur,uk.sci.astronomy
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How to decouple scope form ground vibrations ?
adm wrote:
Dear All,
My quest for a permanently mounted scope continues. I have an LX200GPS 10"
and find that the set up and tear down every time I want to observe is a
real pain.
I want a permanent observatory - even a small one. However, I live close to
a busy road that has quite a few heavy trucks passing by at all times of day
or night - and this tends to vibrate the ground nearby. not much, but enough
to be a pain. It's perfect for visual and fine for planetary webcam stuff as
I can just remove the frames that are affected by vibration before
processing, but for deep sky imaging, it's less than ideal.
So - my question is, how can one build a permanent pier or mount, but
decouple the peir from the vibrations of the local terrain ?
I had thought about digging a hole for a pier foundation, making it oversize
and then lining it with 4 inches of high density Rockwool before pouring
the concrete footings, but am not sure how this might work.
Does anyone have any ideas or pointers for how to mount a scope to minimise
vibrations from the ground itself ? To be honest, the tripod works quite
well right now as it seems to absorb some of the vibration anyway. The
other thing in my favour is that there is far less traffic at night anyway,
but every now and then a big truck goes past.....
What about vibration pads?
http://www.telescope.com/shopping/pr...&iProductID=55
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