Over the weekend we built our first foam boat using two rock crawler motors form the hobby shop. The motors seem to be drawing too much current and we'll need to look into motors with a higher terminal resistance. The boat did float, however, but seemed to dive forward when the props started up. We tried out our awesome idea of the PETG dome formed using the vacuum former under gravity and it seemed to work well. We had to weld a frame for the vacuum former to prevent dimples from the wires...