The study also looked at casting the blocks. The cast ones were stronger but they noted some problems with their printing process.
They mention a lot of the usual upsides of 3d printing. It’s easy to iterate on a design, easy to modify to a particular need, and allows for geometry that’s impossible for other methods.
They snap together kinda like 2x1 legos.
The cybertruck is shit but this is a problem for most if not all EVs. The wheels are mounted to the motor which then generates current when the wheels spin. I’m not sure how difficult it is to solve but at least Toyota, Ford, BMW, BYD and Rivian haven’t figured it out either. They all recommend towing on a flatbed or using dollies.