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hi Shiraz,
Thanks for that.
So did you use silicone all round the edge of the pipe that contacts the mirror? did you use spacers?
is there a specific type of silicone that is to be used?
here is a drawing of the mirror cell I have in mind. it'll be a combination of wood and aluminium.
the 3 bars will be on a pivot. I'll have to use silicone on the 6 pads so that'll hold the mirror. I've added edge supports that don't contact the primary, maybe a mm off just in case it dislodges during transport.
will add a fan in the centre as well.
Got the specs from orion optics, the mirror has an edge thickness of 26mm and weighs 2.7kg. secondary is 75mm minor axis and is 10mm thick.
I have an 8" F4 at the moment, so I'll try out the mirror cell, spider and truss design on that first and then build the 10" with carbon fibre truss tubes.
do you have pics of your secondary holder support fixed to the spider and your mirror cell?
thanks
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