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lab-hardware-cad

Design custom laboratory hardware as parametric build123d models and export fabrication-ready STEP, STL, and DXF files - microfluidic chips and molds, optomechanical mounts and breadboard adapters, cuvette and microplate holders, tube racks, animal-behavior rigs, and 3D-printed instrument fixtures. Use when a research task needs a physical part that must mate with standardized labware, an optical table, a cage system, or a printer, CNC, or laser process.

backend/cli/skills/other/lab-hardware-cad/SKILL.md

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# Lab Hardware CAD

Design physical research hardware as **parametric Python source**, export STEP as the
authoritative artifact, and verify the result both numerically and visually before anything
is fabricated.

The hard part of lab hardware is almost never the geometry. It is that the part must mate with
equipment whose dimensions are fixed by a published standard or a vendor drawing. A holder that
is 0.5 mm too wide does not fit the plate reader; a channel with the wrong aspect ratio collapses
during bonding; a mount whose bolt pattern is 25.4 mm instead of 25.0 mm will not reach the
optical table. This skill exists to keep those numbers correct and checked.

## When to use