156B Week 4

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

• • Moved forward with linear rail design for linear motion 

  • Fabricating test bed for manual motion to test 3 chambers (heating, wire wheel, compressed air)

Accomplishments from Previous Week

• • Brainstormed potential risks for design of each stage 

    • Resin build up 

    • Operator interaction 

  • Purchased linear rail + motor + driver

  • Designed and specified components needed to build test rail fixture

    • 5/8" x 1/16" square tube plain steel

    • 1/2" x 1/16" square tube plain steel

    • 3/4" x 1/8" angle plain steel

    • 2" x 1/8" steel plate

    • 3/8 - 16 nuts and bolts

  • All steel was cut, drilled and milled to desired specifications. The final assembly was mocked up and is ready to be welded.

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

Julie 

• • Design and fabricate mount for print tray on linear rail

  • fabricate base plate to hold linear rail out of acrylic 

  • set up code and arduino w/ driver for controlling stepper motor on linear rail

Bethel

• • Buy heating component

    • halogen bulbs

Marcos

• Finish fabrication of test rail and mount to 2' x 2' test board

• Modify toaster oven to fit the test rails

• Implement heating system, wire wheel, and air knife onto the test rail

• Verify function of the test rail

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

4/16/2019 [in-person meeting]

• • Will the cleaning stations affect each other? 

    • We have planned to shield each station 

  • List attributes for linear rail and conveyor belt system and rank categories and sum up points

  • Consider one button to switch all components on/off

  • Prototype each station accurately

  • How to isolate each station

  • Nichrome wires for heat source

  • Consider space heater and power drill and strip the outer body

  • Think about safety procedures in case something goes wrong (for report)

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

04/15

• • Design of interaction btwn operator and machine (unloading print trays)

  • Motor selection (power and speed) 

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

04/15

• • safety of fumes of resin under heat

Risks and Areas of Concern

Resources or Information Required but not Available

Schedule

Budget (list amount spent and amount remaining)

Progress on Report and Webpage