156B Week 10

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

• • Motor and Slider mounting completed

  • Fabrication of very last Screen handles underway

  • Additional hysteresis test to be conducted very soon

Accomplishments from Previous Week

• • Created first draft of Poster

  • Constructed next iterations of Screen and 2-D Phantom

  • Fully mounted motor and slider onto the Plotter\

  • Submitted second draft of Final Report for Instructor evaluation/critique

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

• • Have Final Report, Poster, Webpage completed

  • Have components delivered to Sponsor

  • Complete Final Presentation

Sponsor Comments from Last Meeting and Actions Taken to Address these Comments (indicate date of comments and if via email or in person)

• • 30MAY2017 (In-person meeting at EBU2 333):

    • Regarding safety concerns, Team reminded Instructor that pinch points would not be a major concern. To deter individuals putting their body parts and other objects into potentially dangerous places, the Team intends to cover the open sides of the lift with a cloth, to have several warning labels warning against such behavior, and to cover the entire lift with a box;

    • Team stated that it would need to visit Thornton hospital soon enough for further screen fittings: this was done on June 1. 2017;

    • Sponsor expressed concern about Bioengineering students' ability to follow the code written for the Plotter.; he was reassured that the code was being written such as to be user friendly. A G-Code Template would be provided to further simplify the tranfer process;

    • Explained that progress being made by Team coincided with Project physicist's efforts and that this boded well for the project

Instructor Comments from Last Meeting and Actions Taken to Address these Comments  (indicate date of comments and if via email or in person)

• • 30MAY2017 (In-person meeting at EBU2 333):

    • Team informed Instructor that safety features had been considered and should be implemented shortly. Chief among these is the curtain to deter the insertion of body parts and other foreign objects

    • Angle irons had been cut to restrict motion at very top and bottom. In addition to these, limit switches would be installed:

      • Limit switches would cut off power to motor

      • Physical stops would act as "crash stops"

      • If limit switch is broken, no rotation/motion would occur

    • Instructor recommended notes be taken of these safety considerations and added to report in order to detail engineering thinking that was part of the project

    • Team provided updates on Screens and Phantoms. At Instructor's recommendation, the Screen will most likely be displayed during final presentation

    • Instructor advised to consider stops for cart wheels as an item of secondary priority

    • Provided recommendations on integration of slider onto Plotter; after much deliberation, Team opted to follow Instructor's input and current design reflects an incorporation of Instructor's advice and Team's own vision

Risks and Areas of Concern

• • Updating Poster to reflect future Instructor comments

  • Delivering most components and  

Schedule

• • Describe upcoming milestone

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • MakeBlock XY Plotter Robot Kit - $279.88 (Amount remaining: $3720.12)

  • MakeBlock Me Orion - $29.99 (Amount remaining: $3690.13)

  • Southworth Lift Tool + Expedited Shipping - $869.44 (Amount remaining: $2820.69)

  • Nylon Screws - $8.26 (Amount remaining: $2812.43)

  • Ballistic Gel - $321.43 (Amount remaining: $2491.00)

  • 2-mm Steel Ball Bearings - $87.47 (Amount remaining: $2403.53)

  • Integrated Stepper Motor/Driver - $280.54 (Amount remaining: $2122.99)

  • Polycarbonate Pellets - $93.64 (Amount remaining: $2029.35)

  • 4-mm Steel Ball Bearing - $138.45 (Amount remaining: $1890.90)

  • Power Cord and Connector - $14.00 (Amount remaining: $1876.90)

  • Miscellaneous Equipment - $132.72 (Amount remaining: $1744.18) 

  • Linear Slider - $247.75 (Amount remaining: $1496.43)

  • Plastic Epoxy - $9.97 (Amount remaining: $1486.46)

  • Comm. Cables and Switch - $18.04 (Amount remaining: $1468.42)

  • Cart, Lift Accessories - $150.87 (Amount remaining: $1317.55)

  • Loctite 425 - $32.16 (Amount remaining: $1285.39)

Progress on Report and Webpage

• • Final Report upcoming and is being focused on

  • Webpage nearly complete: few pictures/CADs need updating

  • Final Poster being considered