Go into the third room. Check out the printing press machine. Try moving the handle. The handle is broken. You will need to fabricate a replacement handle. Take the wooden stick on the sliding panel. Go to the woodworking room.
Go back to the third room. Insert and turn the lathed piece of wood as the handle. The machine will produce a print of a mechanical arm. Take a look through your eyepiece. Turn the dial to match those on the mechanical arm in the main room. Take the camshaft.
Mechanical Arm Puzzle Solution:
1. Place the camshaft in the arm compartment. The hand is holding a key. There is a dial and a switch. Use the dial near the mechanical arm’s elbow to control the hand. The solution is actually on the print of a mechanical arm from the printing press machine.
Go to the iron box. Look at the top of the box.
2. Check out the side with four spikes. Take a closer look at the strange key. A ring can be rotate on the shaft of the key. Rotate until the square hole align with other three holes. Insert the key on the spikes. Again, use the key as a handle. Turn the handle until two arrowheads aligned on the box.
3. Check out the side that has a cylinder with indentation. Take a closer look at the strange key. Rotate the tip of the key so that the bit is pointing up. Insert the key on the cylinder and turn the key so that the arrowheads aligned.