I've put the primary mirror in the cell with silicone - doesn't feel like it's hardening up much at the minute but I'll leave it for a good 24 hours and see what's what.

I've been drilling the truss bolt holes in the bottom tube with a little jig made from angle aluminium.

But the main thing I got done tonight was to re-glass the center section with the truss supports. I PVA glued two bits of 18mm ply together to make it double thickness. Then cut a small triangle from hardboard as a template and made eight in double-thick ply. Applied 225gsm mat with polyester resin to the center tube, placed a triangle in each of the appropriate places and resined a thin strip of mat over the top. I will fire a screw in from inside and then drill for the bolt holes and threaded inserts.