CJ Ackley

A bent instrument enclosure with removable panels and an electronics tray. Two body widths share parametric CAD, developed flat patterns, drawings and tolerance checks.

A JUnit artifact tool that keeps build history, separates retry passes from repeat failures, and exports an offline review report.

Jerk-limited motion profiles with motor-duty integration, load-corner checks, and a synthetic tracking study.

Service checklists and drafts with local storage, queued sync, and conflict review.

A vertical and pitch isolation study for a rotating-equipment skid. It compares support stiffness and damping, startup resonance, foundation motion and load variation.

Durable jobs, retries, worker leases, and an operator console for webhook deliveries.

A drilling fixture with replaceable guides for three mounting-plate patterns.

Heater layouts compared for surface uniformity, contact resistance, and warmup.

Three crosshead profiles compared under load, including support compliance.

Review supplier CSV changes, resolve rejected rows, and approve a versioned catalog update.

Duty rotation, assist demand, and fault recovery for a pair of pumps.

Revision reviews and release control for engineering drawings.

Calibration, filtering, and an uncertainty budget using reproducible synthetic measurements.

Staffing and work-in-process limits tested against variable demand and rework.

Restore a database with its attachments and verify that the recovered files agree.

Supercapacitor sizing and transfer behavior for a 24 V outage recorder.

Resumable key migration with legacy compatibility and interrupted-batch recovery.

Decimal usage accounting with corrections, monthly closes, and late-event adjustments.

Bore geometry, pressure drop, and retained volume for a small dispensing nozzle.

Indexed conveyor guides with repeatable settings for three carton widths.

A chamber geometry study with velocity fields, sensor response, and sample washout.