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The backplate has been anodised very nicely at Elecrtromold and I was able to drill the electrical contacts, post anodising. I will use the backplate as common electrical ground for the fans and the heaters in order to simplify the wiring behind the primary mirror.
The heaters will be 3D printed with conductive filament. I have experimented with two different brands and the one from Jaycar turned out to be suitable, but it is so brittle that I can only print with it on a very hot day.
Apart from the heating elements and the dew shield; all mechanical parts are done and I will start assembly over the coming days.
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