Elevate Ski XO
Pneumatically powered knee exoskeleton for downhill skiing.
Employer: Roam Robotics
Role: Sr. Mechanical Engineer
Roam launched it's first rental units of the Elevate Ski XO in the winter ski season of 2018-2019.
When I joined Roam in February 2018 as a Sr. Mechanical Engineer the team still only had a prototype system and were fundraising for their first small production run. I contributed to most of the design features of the 1st and 2nd generation ski products and supported their launch into the rental market.
Bilateral knee XO with a backpack PowerPack and Remote control user interface.
Multiple power settings for user to select amount of assistance.
Provided extension assist and flexion damping/impact cushioning through pneumatic actuator co-located laterally at the knee joint.
Helped users into and out of turns and cushioned impact
Low distal mass due to pneumatic actuation. All the weight of the system was in the backpack PowerPack on the users torso.
Some of my key contributions:
DFM of injection molded, cast, and machined parts, and coordinated with vendors for fabrication, first articles and quality inspection.
Evaluated break-away force of connectors to ensure safety on ski runs and chair lifts.
Executed cycle and stress verification tests of pneumatic actuator and structural components of robot knee joint.
Designed pneumatic actuator architecture, peformed pneumatic system optimization, valve selection, and design of mounting and reinforcing components of soft actuator
Designed sub-assemblies for various IP-ratings and temperature conditions to survive harsh mountain environment above 6,000 feet of elevation