C14 optical inspection fixture

The brief

A resin plate mounts to a rigid laboratory frame through four holes. A central insert transfers short static loads. The redesign must preserve these interfaces and reduce resin volume without losing the required fixture function.

Preserve the requirements

• Preserve the four mounting-hole interfaces and central insert interface.
• Define the optical clearance envelope, alignment requirement and allowable movement before evaluating variants.
• Confirm the static load magnitude, direction, duration, mounting conditions and resin condition.
• Measure resin volume separately from support material, scrap and total printed mass.

A complete design-to-evidence story

Manufacturing route

Use in-house resin printing where the material, process and equipment are available and suitable. Record resin batch, orientation, supports, exposure settings, washing, cure and dimensional inspection. Identify frame, insert and any machined or fabricated operations separately.

What we will measure

• Baseline and revised net resin volume from the same CAD method.
• As-built mass and print/support consumption reported separately.
• Mounting-hole and insert-interface inspection.
• Deflection and residual movement under the agreed short static load, with a defined measurement setup.
• Fit, optical access and repeatability of the assembled fixture.

Reference & scope

The development brief above is based on the C14 description supplied by DPM. Generative design is underway. Numeric acceptance limits and final verification evidence remain to be confirmed.