Lego Logo predated Capsela and was mostly inspired from Seymour Papert's 1980 book, Mindstorms. It ran on an Apple II through a special daughtercard and was amazing.
I got to play with Capsela as well, but only ever the basic kit without any expansions. Mostly because of the astronomical price of the parts. I wouldn't be surprised if there is someone with a 3D printer trying to design a printable modular motorized construction kit.
Seems like 3D printing would only solve a tiny part of the problem. Some of those Capsela capsules have some pretty complex assemblies inside, which would still be a lot of manual work.
The problem is the price tag. None of those mechanisms are complicated. Simple gear boxes mostly. At the same time I was playing with Capsela I was also building those same gear mechanisms from scratch with Lego Technics.
If anyone is considering printing these, using off the shelf nylon gears would be a very good idea.
Do you have any link, reference or picture about lego logo?
My memories of it are a little fuzzy. I only got to use the system for 1 year, when I was nine years old. There was no assistance, I had to open the Apple and set up the driver card myself, taught myself logo too. I spent every recess inside just to get more time on it. (The kit went to a different school every year.) Unfortunately I didn't grok algebra until the following year, so my programs were essentially simple lists of commands with no math and (at most) limit-switch logic.
I remember making a conveyor to sort blocks using a color? sensor. The older kids got to make and use the turtle, which just ran logo commands.
thank you very much!