I fiddled with the demo during this week, and bought the full game today. Now, I've been running around a free map for a few hours now, sloooooowly building up stuff. And right now I've hit a wall.
After feeding assembly machines manually for some time (defeating the purpose of the game), I tried to get an automated construction line up for iron gears and conveyor belts (in the center of the pic). The lower assembly machine takes in iron plates to manufacture iron gears, and spits it back onto the belt that leads north, then west (iron box on the end is for overflow, I already learned to take cautionary steps...). The upper assembly machine is supposed to take in those gears, plus more iron plates and manufacture the belts.

However, this worked exactly TWICE. The machine produced four belts and now it doesn't take in anything. I tried to replace the feeder arm thingies, doesn't help. Power is there, doesn't help. I'm stuck. Please help me.

(Edit: The title "manual inserter" fits me well
