Up to now everything you printed was a plastic object. A planter, a phone stand, a keychain. Nice, but it never did anything. The final chapter of the campaign changes that: Small Parts, Big Ideas.
Circuit Corner
There is a new shop on Maker Street: Circuit Corner. Walk in, step up to the counter and buy LEDs, coin cells, switches, buttons, buzzers, magnets and springs. Research a bit further and you get motors, servos, wheels, axles, gears and even solar cells.
Your own gadgets
The fun part: there are no recipes. You put the parts straight into your own design in the design editor, like blocks. Then you pick up the Connect tool and draw wires between them. Press Test design and the game tells you what your creation does: "lights up, on/off switch". Or what is still wrong: "The LED has no power."
A battery, a switch and an LED make a lamp. A motor, an axle and a wheel make something that drives. What you can come up with is up to you.
Putting it together
You print the housing, carry it to the assembly bench and build the gadget by hand: every part in its spot, then the wires from plus to minus. Done well, your gadget gets a better quality. And the very first time, it spins around once on a "Complete" screen, because you deserve that.
Gadgets are worth a lot more than plain prints, and selling enough of them finishes the campaign.
To be fair
We first built this as a workbench with fixed recipes. In the playtest it felt like guessing, so we threw it out and started over in the design editor. That new version is still in full development, and every playtest makes it a bit better.