Read the work orderBottom left: what the machine has to do. The star on the wall marks the goal.
Drag parts onto the wallFrom the toolbox. Click a part you placed and buttons beside it turn it, flip it or put it back (or R, the scroll wheel, right-click).
Connect themRope, Belt and Wire: click one, then click the parts to join. Wires go terminal to terminal, in a loop from the battery's + back to its −.
Press the big red buttonOr Space. Press it again to reset and try something else.
