Mechanical Linkage Workshop — Connect rods, pivots, gears, and motors to design mechanisms, walkers, and moving sculptures. Tools: 1-7 keys or toolbar buttons. Click canvas to place pivots. Click two pivots to connect a rod. Click a pivot to add gear/motor/anchor. Interaction: In Move mode, drag pivots. In Play mode, motors spin and physics runs. Right-click to delete. Scroll to zoom.