I've got a bit more details on the single pole Newt.. The round elements are from round clothing racks! Made from chrome plated steel tubes. Talk about crafty,
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Gary did mention Dan's scope. What detracted him from it was the awkard position of the focuser to use. Yes and no. At close to zenith you would need to crane your neck up for an extended period. Not particularly comfortable. At lower altitude, this doesn't become a problem.
I like the one pole Newtonian design. In an orthodox Newtonian, the smaller secondary creates fewer flexural issues if the pole's diameter is large enough. Work hardening the pole too by giving it a gooseneck further reduces the flex. I've seen this done with a scope to 17.5". A 28" scope is another matter.
Gary's scope also has a couple of trussing elements too, and reaching up the main pole at different heights. These would be mandtory to deal with the massive nature of the secondary mirror and its frame. This trussing deals a lot with the flex. Maybe not ideal for a photographic scope, but may be good enough for a visual instrument.
Effectively, I'm looking to go the minimalist way of design. I'm not looking for a go-to. Push-to at most. Clever, smart design is what it is about. Orthodoxy if fine, but not the only truth. I certainly look forward to your info, Clive. Every bit of information helps as the Newtonian's DNA further evolves,
