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autak
The Autak prototype: a black wheelchair with a pink logo and three small wheels on each side.

Hardware

Wheelchair


The stair-climbing prototype that started everything — now in its second generation.

Overzicht

A star wheel that turns stairs into just another stretch of road


Status
Prototype 2 in testing

Waar jij een bijdrage kunt leveren
Construction, machining the aluminium parts, firmware for the ESP32 control unit and test drives with users.

The star wheel


Three wheels sit on a rotating carrier. When the chair meets a step the carrier rolls over and the next wheel lands on the stair above. That keeps the chair stable on a staircase while staying flexible and portable in everyday use.

CAD view of the star wheel with three wheels on a rotating carrier.

At eye level


A conversation at eye level, or reaching something on a high shelf. Extendable spokes raise the seating position, and the angle of the backrest and footrest can be adjusted.

Illustration of the wheelchair climbing several stairs.

Everyday obstacles


The wheels adapt to any surface: kerbs, cobblestones or a forest path. The star wheels change height to compensate for the camber of the road.

The wheelchair outdoors on uneven ground.

From concept to prototype


The first prototype is largely functional and has been tried out with several testers. We are currently building a second one for presentations and load testing.

Close-up of the wheelchair frame with machined aluminium parts.

Wheelchair

Video's


De video wordt pas van YouTube geladen nadat u erop klikt. Daarvoor wordt niets verzonden.

  • Climbing stairs

  • Tilted path

  • Driving over steps

  • Seat assembly