Glass Bottom Boat
I built this along with my trimaran boat starting in early April 2017 and finishing in mid-July of 2017. I did not use CAD to design the glass bottom boat, instead, I used pen and paper. The Plexy glass bottom is 4ft by 6ft with an extra foot on all sides, making the boat's overall dimensions 6ft by 8ft.
This is an animation showing the boat being disassembled (exploded) and reassembled, allowing you to see all the parts.