"""Precision shaft: a plain round shaft of diameter d and length l for linear bearings, centred on the origin with its
axis along Z (ends at z = +-length/2). Tips' chamfers aren't modelled: no source gives their size."""
from steve import Model

diameter = 8  # mm Shaft diameter
length = 200  # mm Shaft length

model = Model()
with model.sketch("section", on="XY", name="Section") as sk:
    sk.circle("outer", (0, 0), diameter / 2)
model.extrude("shaft", "section", distance=length, both=True, name="Shaft")
model.material("steel-generic", color="#c6c9cd")
result = model.result()