156B Week 5

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

• • Manufactured spool mount (Nicholas, Anny)

  • Tested code for heating elements and motor driver (Armando)

    • Shorted motor driver IC

    • Arduino not powering, obtained more Arduinos for testing

  • 3D printed extruder adapter nearing finalized form, still testing (Kevin)

  • Obtained all raw stock for machining (Nicholas)

    • Aluminum for spool mount and Y-connector

Accomplishments from Previous Week

• • Circuit stable under variable power supply (Armando)

  • Finished code for running all the components individually (Armando)

  • Successfully tested PID loop for maintaining temperature setpoint (Armando)

  • Manufactured base plate for spool mount (Nicholas, Anny)

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

• • Solder circuit on protoboard (Armando)

  • Run all components simultaneously through code (Armando)

  • Complete spool/motor mount

    • Attach electronic components (Anny)

    • Create spacer and mount for power supply (Nicholas)

    • Attach spool holders onto base plate (Nicholas)

    • Attach stepper motor mount (Anny)

  • Finalize extruder mount and tool holder (Kevin)

    • After sizing is finalized, manufacture parts from aluminum (Kevin)

  • Managed to find a local MarkForged printer; going to see it on 2/5/2016

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

• • Sponsor was out of town last week, will meet on 2/5/2016

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

• • 1/28/2016 (In Person)

    • Potential issues in milling software (Pedro)

    • Extruder tip too fine, will be addressed

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

• • Presentation will be on 2/4/2016

Risks and Areas of Concern

• • Electronic short when switching from variable to constant power supply

    • Talked to Steve Roberts and suggested to swap breadboard for protoboard

  • Need to test Y-connector housing

Resources or Information Required but not Available

• • N/A

Schedule

• • Finish designing and manufacturing spool mount with all attachments (Nicholas, Anny)

  • Complete circuit design and solder onto protoboard, electronic parts still pending delivery (Armando)

  • Manufacture extruder tool tip from Aluminum (Kevin)

Budget (list amount spent and amount remaining)

• • Spent: $335.96

  • Remaining: $1,164.04

Progress on Report and Webpage

• • Formatted report to recommended format

  • Will finish first draft by 2/5/2016