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Old 03-11-2021, 08:42 AM
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strongmanmike (Michael)
Highest Observatory in Oz

strongmanmike is offline
 
Join Date: May 2006
Location: Canberra
Posts: 17,694
Quote:
Originally Posted by muletopia View Post
lak of photoMike,
In your sketch of your observatory I see the base for your dob is shown as rectangular.
Might I suggest as follows
:-cut the top out of a 44 gallon drum and then cut on third of the drum (top removed third
:- dig a circular trench, say 4 inches deep to receive the cut end of the drum
:-pack the trench to locate the drum so that the top is level
:- fill the drum nearly to the top with stones
:-top with cement and screed it to the drum rim


This size neatly fits Skywatcher dobs.
The photo just shows our drum in place
Chris
Bother the photo was too large
A cool idea there Chris, thanks I was considering pouring a small round slab actually...but because I am secretly hoping to get a larger Dob someday soon (maybe) , thought I'd wait and see if that is just a pipe dream or not

Mike
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