File size: 2,053 Bytes
5154c4e | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | from __future__ import annotations
from pathlib import Path
import cadquery as cq
OUTPUT_ROOT = Path(r"C:\Users\User\Desktop")
OUTPUT_NAME = "cli_039_threaded_insert_out.step"
TOL = 0.08
def load_single_solid(path: Path):
if not path.exists() or path.stat().st_size <= 0:
raise FileNotFoundError(path)
solids = cq.importers.importStep(str(path)).solids().vals()
if len(solids) != 1 or not solids[0].isValid():
raise ValueError("expected one threaded insert solid")
return solids[0]
def inside(solid, x: float, y: float, z: float) -> bool:
return bool(solid.isInside(cq.Vector(x, y, z), 1e-5))
def check_bbox_and_bore(solid) -> bool:
bb = solid.BoundingBox()
return (
abs(bb.xlen - 16.0) <= TOL
and abs(bb.ylen - 16.0) <= TOL
and abs(bb.zlen - 24.0) <= TOL
and abs(bb.zmin - 0.0) <= TOL
and all(not inside(solid, 0, 0, z) for z in (1.0, 12.0, 23.0))
and all(inside(solid, 3.4, 0, z) for z in (1.0, 12.0, 23.0))
)
def check_lead_ins(solid) -> bool:
return (
inside(solid, 7.8, 0, 1.5)
and inside(solid, 7.8, 0, 22.5)
and not inside(solid, 8.3, 0, 1.5)
and not inside(solid, 8.3, 0, 22.5)
)
def check_thread_bands(solid) -> bool:
# Crest bands are full OD16 and root gaps are root OD14.4 over the middle 18 mm.
for z in (3.5, 5.5, 7.5, 9.5, 11.5, 13.5, 15.5, 17.5, 19.5):
if not inside(solid, 7.8, 0, z):
return False
for z in (4.5, 6.5, 8.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5):
if inside(solid, 7.5, 0, z) or not inside(solid, 7.0, 0, z):
return False
return True
def evaluate() -> bool:
solid = load_single_solid(OUTPUT_ROOT / OUTPUT_NAME)
return (
check_bbox_and_bore(solid)
and check_lead_ins(solid)
and check_thread_bands(solid)
and abs(solid.Volume() - 3803.1) <= 80.0
)
if __name__ == "__main__":
try:
print(True if evaluate() else False)
except Exception:
print(False)
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