156B Week 6

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

• • Fabrication in progress. Assembly beginning shortly

  • Gratings finished, need to test new design using steel wires against steel bars

  • Beginning LabView

Accomplishments from Previous Week

• • Began fabrication for high risk areas

  • In-depth analysis of the load sensor

  • Got LabVIEW to read data from load cell through DAQ

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

• • Finish prototype fabrication (Jeremy & Cheuk)

  • Preliminary Labview program to run motor (Aaron)

  • Incorporate low pass filter for load cell on LabVIEW (Aaron and Ben)

  • Load sensor calibration and precision (Ben)

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

• • Double grating may make food inaccessible to the mice (5/4 - in person)

    • New design idea using strong steel wires on the hopper and only a single grating on the cage.

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

• • Grating should be tested asap. (4/29 - in person)

    • We completed the fabrication, but sponsor was not comfortable with double grating after seeing it.

    • We ordered stainless steel fishing wire yesterday (Monday) to use as a new grating.

Comments from Other Students in the Class (indicate date of comments and if via email or in person)

• • How to make sure the mice cannot push the hopper away from cage (4/29 - in person)

    • We will use the proximity sensor to operate the motor to push the hopper when it is out of position.

Risks and Areas of Concern

• • How to mount the mechanism onto the cage

  • How to make it easy to load, clean, and detach.

Resources or Information Required but not Available

• • N/A

Schedule

• • Finish fabrication of prototype by the end of the week to test next week

  • Update Gantt chart.

Budget (list amount spent and amount remaining)

• • $327.77 spent and $1672.23 remaining

Progress on Report and Webpage

• • Report is up to date

  • Uploaded new CAD models