Boxing is in for the concrete and I banged in some expansion joints so it doesn't push on the pool or the pier footing or visa versa. I'm going to get
concrete taxi to do the concrete, quick, easy, no left overs and no mess, and not much more dollar wise than bagged pre mix to be honest.
I also trimmed the bottom of the dome to make it flat. As all edges of every triangle are tapered, the bottom of the dome is also tapered so it's not flat, which makes for a poor glue bond to the turntable. I also found this one was up to 25mm away from true (see pic). However, the foam is pretty easy to work with, I knocked up that cutter in no time at all and ran it from my dew controller. I measured down from the ring, set the string to distance all the way round, drew a line with a marker and cut it. Hint, red hot is tooo hot for the cutter, that just makes holes
I also got the eee box cleaned out and setup for Astro Apps and remote control.
It has wireless built in but it's a gutless CPU. For control it should do ok.
I'll keep my eyes open for a cheapish Solid State Hard Drive.
Also Brundah1 has put me onto some quality wood glue.
TITEBOND III water proof wood glue from http://www.hardware.net.au/
I also found 10litres of paint in the shed so just finished painting the bottom ring. Back to making more rings tomorrow
oh, and thanks to ChrisM for some great ideas via email ...