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Re: ATM 6" Dob: How Easy?
>>For a 6" mirror in an 8" x 48" tube, is all that 3/4" plywood really
>>necessary?
>
>Your instincts are absolutely correct! The original dobson plans (and
>derivatives like the designs in Berry's _Build Your Own Telescope_) are
>hideously overbuilt. I used 1/4" masonite for most of my tube--and next
>time I would use something even thinner (like 3/16" "doorskin" plywood).
....I have used 1/16" ply for a 12.5 " f6...... mind you it was built
like an aircraft fuselage.... ribbed axially and radially ( baffles )......