Hi Clive thanks for the timely advice. I have removed the gloss off the inside of the tubes which is black epoxy, and the finish seems acceptable. I was thinking of spraying with Krylon ultra flat black after the baffles, etc., are glued in but I may not need to.
When you say the baffle is to be positioned "under the base of the focuser," I take that to be just below the light path from the secondary to tertiary.
As for the Aussie mozzies.... Well I'm in mooloo land (Waikato) and we do have annoying bugs but not like them WA mozzies
I am enjoying this build but it is taking a while. I have no work at present but I do have free use of machine tools in the mean time so hopefully I can get the framework and tripod done before more work comes in and I get busy again.
Thanks again for your advice.
Regards
Keith