I restarted the mould and managed to do a perfect split.
The 6 meter high model was a scaled down to 30 cm (scale of 1: 19.7)
First I made a new model, similar in appearance to that in day 7, then I placed it within a box, and you can see the two below just about to be split by a plane:
After the split, I lay the halves horizontally and contoured them. I then split them in planes parallel to the contours and arranged them. (Ella was really helpful in accomplishing this process):
(The first layout shows the surface milling that will be done on the shopbot, while the second set of profiles shows the profiling. I would use a 3/4 inch thick blockboard on the shopbot)
The fabrication and casting would be done on day 9.