I have decided to leave the ballast system for now. I am confident that my pressurised system will work very well but I have to source a much stronger solenoid valve. Ideas on this would be welcome but weight must be a consideration along with the tube connection size.
I have turned my attention to the main build. My aim for this session was to complete the aft section and cut all of the weight reducing sections. The first job was to place all of the decking parts and forward and aft sections into place using tape and mark all around with a marker pen
. The parts were removed and another line drawn about 6mm (1/4”) inside. This is so that any removed material will not be visible once the deck is fixed back into position. Lines were then drawn about 12mm (1/2”) each side of the hull half connection points and the large areas cross hatched to avoid mistakes.
Time for the Dremel. I fitted the Dremel with a 25mm (1”) diameter 0.8mm (1/32”) rotary saw blade and very carefully cut all of the sections out. To join all of the cuts together, I used a 300mm (12”) hacksaw blade. Great care had to be taken with this process not only to avoid a visible cut, but also not to remove a finger. Regular counts were taken on fingers just in case.
To complete this task. I carefully removed all of the plastic burrs with a needle file. These are quite severe with Styrene but relatively easy to remove. I was happy with the results of this cutting.
The next item I addressed was the aft section. I had to try to assemble the two halves whilst installing the rudder, aft planes and their operating rods and connectors at the same time. I had previously made the connector rods and had carried out successful trials whilst holding the parts together with elastic bands. The time had arrived to glue the halves together with all of the parts in place. I assembled all of the parts again with bands and started to glue a part at a time. Disaster. I broke the aft planes in half. I was trying to be clever and keep this part in its original supplied condition and ignored previous builds that had strengthened this part. Not a good idea. I now have to try to repair this part and put in place even though both halves are now glued together. This is a job for the next update.
Just a reminder, if anybody knows of a solenoid valve that fits the requirements, help would be greatly appreciated.
Thanks for reading. Peter.😊