verify-chute-bend.py, ezdxf 1.4.5, files in chute-bend OK cheek: DXF R12 in millimetres, no audit errors OK cheek: one closed polyline on CUT OK cheek: two square end edges of 624 (inside 600 + 2 x 6 wrapper + 2 x 6 overhang) 2 OK cheek heel edge: 4 joints, each turning 22.5 deg, 90 deg in all 22.5000, 22.5000, 22.5000, 22.5000 OK cheek heel edge: pieces of a segmented bend at r = 1212 391.08 / 482.16 / 482.16 / 482.16 / 391.08 OK cheek throat edge: 4 joints, each turning 22.5 deg, 90 deg in all 22.5000, 22.5000, 22.5000, 22.5000 OK cheek throat edge: pieces of a segmented bend at r = 588 266.96 / 233.92 / 233.92 / 233.92 / 266.96 OK cheek: both legs 1050.000 from the intersection point (R 900 x tan(90/2) + tangent 150) 1050.000 / 1050.000 OK cheek: legs 90 deg apart OK cheek: area and mass match the bill of materials 1,080,873 mm2, 50.91 kg OK heel: DXF R12 in millimetres, no audit errors OK heel wrapper: rectangle 2214.333 x 400 (pieces at mid-thickness, r = 1203) 2214.333 x 400.000 OK heel wrapper: 4 fold lines across the strip at the joints 389.29 / 867.87 / 1346.46 / 1825.04 OK heel: area and mass match the bill of materials 885,733 mm2, 41.72 kg OK throat: DXF R12 in millimetres, no audit errors OK throat wrapper: rectangle 1250.005 x 400 (pieces at mid-thickness, r = 597) 1250.005 x 400.000 OK throat wrapper: 4 fold lines across the strip at the joints 268.75 / 506.25 / 743.75 / 981.25 OK throat: area and mass match the bill of materials 500,002 mm2, 23.55 kg OK flange: DXF R12 in millimetres, no audit errors OK flange: opening 626.0 x 414.0 clears the chute's outside 624 x 412 1.00 / 1.00 a side OK flange: land 60 all round OK flange: 18 holes of 14 OK flange: hole centres on the middle of the land (686 x 474) OK flange: equal hole spacing on each side, at most 150 137.20 / 118.50 OK flange: holes clear the opening and the outside edge OK flange: area and mass match the bill of materials 136,429 mm2, 10.71 kg Total steel: 188.51 kg ALL CHECKS PASSED