In an effort to keep things simple, a thought occurred. As a kid, I used to build model airplanes right on the plans, with some waxed paper covering them to keep the glue from sticking and push pins to keep things in place. Obviously I cannot use push pins and glue, but what I can do is draw it 1:1 scale and just get it to feel right, then using a saw cut the pieces.

In the construction of the lower frame, two identical sides are made and then connected with cross members to set the width. The platform should be a sheet of sturdy metal or wood, depending on what I can find when the time comes.

The clearance height is sort of low, but that does not matter in this case as PAL is going to be indoors.

The construction will use "C" channel, square tube stock, and flat aluminum stock all in the 3/4" size as that is what my chop saw will cut. All angles are to be either 45 degree or 90 degree cuts with most of the structure riveted together. The "C" channel wraps tightly around the square tube material, which makes a very tight mechanical fit before the rivet holes are drilled and rivets put into place.

The battery will be mounted near the center of gravity, and a custom platform will be made when I have selected the power source. Due to the motors I have access too, I am planning on making it a 24V/5V system.

Sometimes it is fun to just sit down with some paper and colored pencils :) One detail that is left off of the diagram is the fact that the lower cross members are sitting on the open side of the C channel, I plan on simply putting some short pieces of the tube stock in there to allow me to rivet those in place.

This is the motor I have access too and depending how things work, should be using.

I will upload final part numbers after things are put into place and functional.

Cheers!