Cross-Country Sit Ski Progress Report Cody Barnett Betsy Camp Josh Metzler Robbie Quesada Mark Scheel Alex Triplett Academic Advisor: Dr. Hormoz Zareh Industry Advisor: Jennifer Armbruster Sponsor: PSU Inclusive Recreation

Agenda Introduction Mission Statement Final PDS External Search Internal Search Concept Selection User Survey Project Schedule

Introduction Inclusive Dept. of Campus Rec wants a cross-country sit ski Must accommodate various Body shapes Injury types Body shape: Height, size, weight Injury types: Levels of functionality. Mention that lower-level quadriplegics (quadriplegia is AKA tetraplegia) still have some arm functionality, but have probably lost some hand functionality. Maybe give a nod to the handcycling team, who alluded to this fact but didn’t really explain it. Adjustability will ensure that the highest number of people possible can use it.

Mission Statement The objective of the PSU Sit Ski Team is to design and build a cross-country sit ski for the PSU Inclusive Rec Department. The sit ski must accommodate varying user size, weight, and injury type. The product and supporting documentation will be delivered to Inclusive Rec in June of 2012. This is an actual statement, so it should be included verbatim. Otherwise, we should not have a “Mission Statement” slide. While this is displayed, I will say something like the below, instead of turning around and reading the slide: “Our mission is to design and build a sit ski with enough adjustability to address those aspects [mentioned in the previous slide] from user to user.”

Final PDS Seat back adjusts from 19” to 25” Seat back reclines from 90° to 120° Footrest adjustable Bottom of seat adjusts to 20° Restraints for T12 to C5 injuries Cost less than $1500

External Search Kiwi X-Country Ski Lightweight Adjustable footrest Fixed seat Loss of core strength Low to the ground This is the best available picture. Although small, we should include it so that the audience has some idea of what we’re talking about. Lightweight: May only be possible for fixed sit skis, makes final product more expensive

External Search Teton Nordic Sit Ski Telescoping footrest Molded seat is fitted Frames custom-built Does not mount to commercially available bindings Footrest: Only 1-D adjustability Molded seat: Glove Seating used by many sit ski manufacturers, does not allow for adjustability and costs several hundred dollars Want to use traditional skis

External Search Central Cross Country Footrest inadequate Restraints do not accommodate higher-level injuries Users have noted rubbing issues with seat material Footrest: Simple bar Restraints: Essentially just lap belts Material: Basic mesh, can cause sores

Internal Search Brainstorming Sessions Concept Designs

Internal Search Concept Designs Seat Frame Adjustability Restraints

Concept Selection Overall Design Selection Fundamental Design Low-Risk Design Improved Design Pros Simple design Robust frame Low-cost seat Cons Lack of adjustability Lack of strap points Expensive manufacturing Pros Simple design Some adjustability Bucket seat Cons Expensive seat & parts Low adjustability Pros Adjustability Strapping points Manufacturing ease Cons Heavy Manufacturing time

Concept Selection

User Survey User online survey Validate design decisions Utilize users’ experience and knowledge

Project Schedule PDS Internal Search External Search Detail Design Start Date Finish Date Design December 1 April 5 Manufacturing April 2 May 16 PDS Internal Search External Search Detail Design Testing May 17 May 31 Final Delivery June 8

Summary Introduction Mission Statement Final PDS External Search Internal Search Concept Selection User Survey Project Schedule

Questions ?