Duplex pump piston: 1914 drawing to STEP

Report
Piston of a 16 x 8 1/2 x 12 duplex steam pump rebuilt from a 1914 detail drawing (public domain book "Machine Drawing", plate C). Solid model in Rhino: all 18 dimensions on the plate checked on the model, no deviation. STEP AP214 reopens as one valid solid. New A3 manufacturing drawing (PDF and DXF): section, detail and face view, mm with the original inch values, unclear details listed as assumptions on the sheet. Typical job: old or hand-made drawings turned into clean 3D CAD for spare parts.
Published
in Reverse Engineering 3D Models of Machine Parts Mechanical CAD Design
step piston pump technical-drawing spare-parts
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