Reach workbench: zones, grip paths, cycle time (3D)
About this app
A 3D workbench with reach zones I to IV: drag bins and the screwdriver, an assembly cycle runs as a hand movement, and cycle time and output change live. P5 woman, P50 and P95 man show why the smallest person decides.
With explain mode: an AI tutor walks you through the app, points out what matters in the scene and answers your questions.
Reach and work zones
An assembly workplace is divided into zones: the work centre with both hands in the field of vision, the extended work centre, the one-hand zone for parts gripped often and the extended one-hand zone for part containers. The physiological maximum reach of the smallest intended person decides, often the 5th percentile of women.
What the app shows
A workbench seen from above at an angle, a seated person and the zones as arcs on the table. An assembly cycle runs as a hand movement. Times follow a simplified model explained in the info panel.
What you can try
Drag bins and tools across the table and switch between the persons P5 woman, P50 and P95 man. A layout for the average works for the middle person, while several places are out of reach for the smallest.
Frequently asked questions
- Which reach zones exist at a workplace?
- Work centre, extended work centre, one-hand zone and extended one-hand zone, from the inside out.
- Why plan for the 5th percentile?
- What the smallest intended person can reach, all taller people can reach too. With the average, parts would be out of reach for smaller people.
- How does reach distance affect time?
- Longer distances cost time per grip, body movements even more. Over many cycles that means clearly fewer pieces per shift.
- What can I do in the app?
- Drag bins and tools, switch persons, compare layouts and run the cycle.
Subject: Industrial Engineering
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