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Printing a part whose drawing is on microfilm

Making a legacy part is rarely blocked by the printing. It is blocked by establishing what the part actually is.

The situation

A legacy component needs replacing. The drawing exists, on microfilm or as a scan of a print made from it, dimensioned in units and conventions from another era.

Before anyone can quote, somebody has to establish the geometry, the material, the tolerances and the finish, from a document that was never meant to be read by a machine.

Why it is hard

01

The drawing is evidence, not a model

A scanned print requires interpretation, and interpretation is where errors enter.

02

Material specifications are often referenced, not stated

The drawing cites a standard that may itself have been superseded several times.

03

Tolerance drives the process choice

Whether a part can be made by a given process depends on tolerances that must be read off the drawing correctly.

How we approach it

Agentix reads the drawing set and the standards it references to assemble the specification, flagging where the documents do not contain enough to establish a requirement, and 3D Bazaar puts that specification in front of providers who can meet it.

The unresolved items are presented as questions for engineering rather than filled with assumptions.

What changes

  • Specification assembled from the drawing set and the standards it cites
  • Gaps presented as engineering questions rather than assumed
  • Providers matched on ability to meet the tolerances stated
  • Quality checked against the specification as ordered

Next

Is this your problem too?

Bring the version of it you actually have. We will tell you what it would take, including when the answer is that it is not worth doing.