"""ISO 7089 plain washer, normal series. It sits on the XY plane, centred on the origin.

Material: 200 HV steel (cold-rolled DC01), zinc plated."""
from steve import Model

size = "M3"  # Thread size

# size: (inner diameter d1, outer diameter d2, thickness h)
WASHERS = {
    'M2': (2.2, 5.0, 0.3),
    'M2.5': (2.7, 6.0, 0.5),
    'M3': (3.2, 7.0, 0.5),
    'M4': (4.3, 9.0, 0.8),
    'M5': (5.3, 10.0, 1.0),
    'M6': (6.4, 12.0, 1.6),
    'M8': (8.4, 16.0, 1.6),
    'M10': (10.5, 20.0, 2.0),
    'M12': (13.0, 24.0, 2.5),
}
d1, d2, h = WASHERS[size]

model = Model()
with model.sketch("washer_sketch", on="XY", name="Washer") as sk:
    sk.circle("outer", (0, 0), d2 / 2)
    sk.circle("inner", (0, 0), d1 / 2)
model.extrude("washer", "washer_sketch", distance=h)
model.material("steel-dc01")  # 200 HV washer steel
model.appearance(color="#c9d1d9", metalness=1.0, roughness=0.3)  # clear zinc plating
result = model.result()