Thanks for the advice fellas. Looks like I'll need to read up a bit more on dob design. I was going to go marine ply but now maybe the formply is the go - I don't mind the black surface and if it's lighter then that seems like a bonus. I need to go in to the store and get a feel for the materials I think. Besides the shape of the arms going up from the base I was going to use the current mounts on the tube for ease of construction - though if you guys reckon the design is flawed then I may investigate other options to get a more balanced setup.
Any recommendations on how to work out the ideal pivot point on the tube?
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