Week 4

Guidelines for Report

• • Weekly Progress Reports should be printed out before meetings with the sponsor and instructor.

  • All team members should be able to explain all items on the progress report.

  • To start a new progress report, create a new webpage and use the Progress Report Template.

Overview of Status of Analysis, Design, Fabrication, Tests, etc.

• • Budget at UCSD is $500.00 (>$250 already spent). Budget at SPAWAR is $5500 ($0 Spent)

  • Track type decided (snowmobile parts). Ordered all drive shafts, drive wheels, and track. Track and 1/2 of drive shafts/wheels arrived. Yet to order idler wheels. (Ryan)

  • Frame and chassis design complete, but pending sponsor approval. Cannot order parts until sponsor approved final design. (Mike, Ryan)

  • Tensioner requires redesign based on sponsor request. Springs and hardware to be ordered within 24 hours. Preliminary spring-force testing upcoming (awaiting parts to arrive). (Ryan)

  • Segway basic robotic platform taken to campus for full access of all team members.  Researching ways to control the Segway. (Edrees)

  • Drive train gear ratio, sprocket sizes, and chain size determined. Awaiting ordering of needed parts. (Mahin)

  • Chain tensioner design complete. Small scale prototyping in progress. Final parts awaiting order. (John)

Accomplishments from Previous Week

• • Created a cleaner website/feasibility (Ed. Siddiqui)

  • Purchased Snowmobile tracks (Ryan)

  • Purchased drive wheels/drive shafts/tracks (Ryan)

  • Chain Tensioner prototype parts purchased (John)

  • Motor shaft adapter redesigned (Mahin)

  • Researched idler wheels, raw frame materials, axle materials (Ryan)

  • Track tensioner redesigned from 4-bar to 1-bar (Ryan)

Goals for Next Week (list names after each item). Use specific and measurable objectives.

• • Send orders for raw materials & COTS parts to Aaron at SPAWAR by 2/2/12 (All team members)

  • Website Updates/Construction  (Ed)

  • Begin researching methods of remotely controlling the robot. (Ed)

  • Receive sponsor approval for final design concepts, and begin fabrication (John, Ryan, Mike, Mahin)

  • Cut tracks and begin spring force tests for track tensioner (Ryan)

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments

• • Retracted support for a track tensioner loaded by a gas compression spring because it cannot lock in retraction. A locking mechanism can be easily designed into existing plans.

  • Reiterated that stock Segway parts must be unaltered so that the track kit is reversible.

  • Expressed support for a frame superstructure to support the chassis and double as a load platform.

  • Did not want us to begin fabrication without express consent

Instructor Comments from Last Meeting and Actions Taken to Address these Comments

• • Presentation last week; no instructor meeting

Risks and Areas of Concern

• • Worried about loading and cyclic fatigue at connection points

  • Time management is starting to become an issue (being late to scheduled meeting with sponsor).

Resources or Information Required but not Available

• • N/A

Schedule

• • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • $6000 provided

  • $270 spent

  • $5730 remaining

Progress on Report and Webpage

• • Home and Reports pages reformatted and organized

  • Added links to sponsor and updated project management page (w/ video embedded)

  • Added links to budget forms and order forms.

  • Beginning report organization