Manufacturing Automation · Prototype / concept refinement
Motor Encoder Validator
A dedicated fixture for validating replacement motor encoders and detecting incorrect or defective units before installation.
Problem
A replacement motor encoder can look physically correct while still being electrically incompatible, defective, misaligned, or mapped differently. Discovering that after installation wastes assembly and troubleshooting time.
Description
What I built or investigated
The validator concept turns encoder inspection into a repeatable pre-installation check: verify supply, output behavior, direction, channel relationship, pulse consistency, and physical alignment before the part reaches the machine.
Iterations
The work did not happen in one jump.
- 01
Began as a production-quality-control concept after seeing how expensive late discovery can be.
- 02
Separated visual/physical inspection from electrical signal validation.
- 03
Defined a fixture approach that can compare known-good and replacement behavior.
- 04
Added the idea of clear operator pass/fail output instead of requiring oscilloscope interpretation for every unit.
Result
Where the project landed
A documented fixture architecture ready for continued bench development. The current public page intentionally excludes employer-specific part numbers or interfaces.
Lessons
What carried forward
- The right place to catch a bad component is before installation.
- A test fixture should convert expert interpretation into an operator-safe decision.
- Encoder mounting and signal behavior must both be checked; either one can create the same field symptom.
The vending-machine rotary feedback assembly is documented under the vending controller diagnosis; it is not imagery from this manufacturing fixture.
Images & evidence
Work in context
Media still being recovered
This case-study location is ready for photos, diagrams, source screenshots, or video when they are available.
Documentation status
This is a living case study. New photos, measurements, diagrams, source files, and exact outcomes can be added without changing the permanent project URL.
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