Yesteday, after a somewhat longer preparation time, everything was ready for cutting the first foam core of the center section’s master model. I chose styrofoam for the core, because it can be cut with the hot wire and it is easily sanded further in shape afterwars. I had to exepriment a little bit with the glue to get the sheets together. Though UHU-Por is ideal for styrofoam, aligment cannot be corrected after joining. This is a potential problem when you have large pieces. I ended up in using a silan modified polymer.
Here’s a time-lapse video of the procedure: