1. 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

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

3. 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.

4. 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.”

5. 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

6. 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

7. 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

8. 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

9. Internal Search
Brainstorming Sessions
Concept Designs

10. Internal Search
Concept Designs
Seat
Frame
Adjustability
Restraints

11. 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

12. Concept Selection

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

14. 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

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

16. Questions ?