After getting the drawings, open the workbench, and you can see the materials needed for construction: 20 pieces of engine oil, 900 pieces of clay, 20 pieces of wrought iron 100, 20 pieces of mechanical parts, and 0/200 pieces of pebbles/KLOC-0. After collecting enough materials, click Make to get the items.

Mechanical parts can be synthesized on the workbench, and the required materials are 2 forged steels and adhesive tape 1.

Forged steel can be bought in shops or made by yourself.

In addition, mechanical parts and engine oil can also be taken apart with a wrench. There are many cars at the gas station, and those who need quick materials can go to the gas station to dismantle the car.