I compressed it into a 2m video for fun.
I had to make a few metal parts as well by cutting off some 1/4-20 rod.
I did some redesign of the gondola so it has the following improvements.
-It is now bolt together and is very configurable.
-You can vary the point of attachment of the cables.
-There are now three positions for ballasts. A new one at the bottom to increase stability.
-It is now transparent.
-The clamp is cut away so you can see the pen.
-The area where the pen contacts the paper is cut away so the observer can see the pen contact.
The new spool holders are in red translucent acrylic. I also made a cover for the electronics.