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Keith-in-Texas
member
Reged: 10/16/06
Posts: 22
Loc: Stephenville, TX
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I am considering the installation of a Pier-Tech 2 telescopic pier for the observatory I will be building. I am interested to learn from other users of this pier how well it damps out vibration, especially compared to other steel or concrete piers you have used?
I will be using the pier with at TEC 140, C9.25, and possibly a Mewlon 250 in the future.
Thanks in advance for your input.
Regards,
Keith
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Keith Parker
Starmaster 20" w/ GoTo & Tracking
Celestron C9.25
TEC 140
SV90TBV
Losmandy GM-8 mount
Pentax XW and Televue eyepieces
Mallincam Hyper Color camera
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Rick Woods
Postmaster
Reged: 01/27/05
Posts: 5684
Loc: Inner Solar System
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Never tried one; but the 12" concrete pier I use dampens everything that can be dampened.
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- Rick
14" LX200GPS
Dyslexics Untie!
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Keith-in-Texas
member
Reged: 10/16/06
Posts: 22
Loc: Stephenville, TX
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Thanks Rick,
I spoke with the manufacturer of the Pier-Tech 2 and he indicated that typical damping time was on the order of 3 seconds. That seems like significant damping time for a telescope mounted on an observatory pier.
I'm sure there are tradeoffs for having the convenience of being able to easily adjust the height of the pier and perhaps the damping time due to the hollow structure is one of the tradeoffs.
How do you have your 12" concrete pier loaded and how quickly does it dampen out vibration?
Regards,
Keith
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JAT Observatory
Got Cookies?
Reged: 02/20/05
Posts: 6800
Loc: Eastern PA
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I have a Pier-Tech2 installed in my OBS. It was originally installed with a 10" SCT on a wedge. It now holds a Paramount ME with 12" SCT with other scopes piggy-backed.
While I never measured the damping time it has never been an issue that I have noticed visually or while imaging.
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-Marcus
The problem with free speech is even the stupid have a voice.
http://www.jatobservatory.org
Currently a SV102A, WO 66mm & 10" LX200GPS OTA on a Paramount ME
(these OTAs subject to change without notice)
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