ATM 3/4" plywood for dob.?

["Paul Stock" <comabereni@earthlink.net>]

I like to use 3/4" Appleply also, but I route away virtually all
non-structural material. I prefer 3/4-inch ply where I will be gluing up
edges or using threaded inserts for 1/4-inch fasteners (the threaded inserts
have enough board thickness to bite into). In the 6 to 10-inch telescopes I
build on
occasion, I have not found weight to be an issue since I lighten them so
much with the router--recent 10-inch and 8-inch dobs both weighed around 40
lbs. total each and could easily be carried in one piece, including
observing stool and eyepiece case if I hung them around my shoulders with a
strap enabling me to make a single trip outside:
http://home.earthlink.net/~comabereni.

I would NEVER use 3/4-inch plywood if I didn't remove all excess
material--too heavy if you slap together a 4x8' sheet or two into all the
pieces of a typical medium to large sized dob.

Cheers~~

Paul Stock
Salt Lake City