Inside the Partvo Sensor Enclosure ZIP: How to Read Its Validation Report

By Partvo · Updated 2026-09-19

What the download contains

The public archive is identified by its file inventory: the source states, “The public enclosure ZIP contains these files: base.step, recipe.json, lid.step, lid.stl, base.stl, validation.json.” That inventory is the starting point for review.

Because the archive contains both STEP and STL files, the guide “STL vs STEP: which file should you download?” provides relevant file-format context: “STL represents the surface as triangles. It is widely used by slicers, but it does not store a physical unit. Partvo exports use millimetres.” For editing, “STEP can preserve solid geometry and unit information for CAD applications.”

What validation.json records

The base part’s recorded results include dimensions and solid checks: the record reports “base dimensions of 80 by 60 by 28 mm, solid_count 1, watertight true, step_roundtrip true, and stl_roundtrip true.” The lid record reports “lid dimensions of 80 by 60 by 4 mm, solid_count 1, watertight true, step_roundtrip true, and stl_roundtrip true.”

The recipe sets units and flags the sample: “The recipe records units as mm. The validation record marks demo as true.” These are recorded metadata, not independent physical evidence.

The archive itself is identified by SHA-256: “The downloaded public ZIP SHA-256 is 05522fe31492c26526bddc3a41a2e127987baf0c50b9e1542f1027c68aacd947.”

What is explicitly not evaluated

The report marks several checks as outside its scope: “The validation record marks feature_inspection as not_evaluated.” It also states, “The validation record marks assembly_interference as not_evaluated,” “The validation record marks freeform_dfm as not_evaluated,” and “The validation record marks physical_fit as not_tested.”

The source also notes the limits of inspection: “Downloaded the public ZIP and inspected its file inventory and JSON records. Did not independently run CAD validation or physically print the sample.”

Review steps before editing or printing

A practical review starts by confirming the file inventory and recorded JSON results, then importing both formats. The guide advises: “Check the displayed outside dimensions before scaling or printing.” It adds, “Compare the imported width, depth and height against your brief,” and “Measure functional openings directly. An outside dimension does not establish a slot width.”

For print planning, the guide recommends: “Preview the toolpath in your slicer and choose settings for your material and printer.” It also frames the example honestly: “This is a generated demonstration, not a physically validated product. Review dimensions and suitability before use.”