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Fabrication Camp

Engineering Physics 253 [Instrument Design] 2019

Week 1 Session 1

Goals for today and Friday afternoon:

Set up and become familiar with your 253 work spaces
Get used to safety procedures and cleanliness standards
Begin learning several fabrication techniques that you will need to build a computer controlled car that is needed for the PID lab in week 6 (June 13):

The “Tape Follower” (video view of it)

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Code of Conduct

Standards, Rules and Responsibilities

For the coming weeks in this course, and for the rest of your life as a graduate from UBC Engineering Physics.

“Safety First”

“Leave it nicer than you found it”

Be an example for everybody with regards to points 1) and 2)

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All teams will take turns in becoming the daily cleanup-squad.

The squad will return tools and clean up common areas at the end of each day.

Please help each other keeping things nice and efficient at all times.

Daily Cleanup Squad

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Organizational

Take a team photo and copy it into this document. Label yourselves with your first and last names.

Enter your names and info into this lab layout document

(=Last year’s winning team)

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Setting Up Your Lab Space

Fetch and install power cords for all your benchtop lab equipment: Oscilloscope, Power Supply, Frequency Generator

Do a first hands-on test to warm up: Get a TCRT 5000 reflective optical sensor from the components bins. Find a proper resistor to run the LED using the frequency generator (500Hz sine) and another resistor to operate the receiver side of the sensor in pull-up mode, on 5V DC from the benchtop power supply. Then, use the oscilloscope to verify the sensor is working, detecting objects.

Datasheet TCRT 5000

Ask instructor/TA to

check/sign off once you

have this completed.

Freq.

Gen.

Pow.

Supply

Scope

+

-

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Ask us for help, but

If it is for something with electronics you are working on, always have a schematic ready (hand-drawn is ok)

It’s very hard to understand what you are doing without seeing a schematic.

Show the values for components you have chosen.

We reserve the right to ask you to first draw one up before helping you.

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TCRT 5000 test setup from “Setting up your lab space” - completed and demonstrated to instructor/TA (one test setup per two-student work bench)

Get Started with CAD: set Onshape units to millimeters (video), make a name tag in Onshape and export as DXF (video)

[no prerequisites]

Use the laser cutter to make a name tag. (video)

[completion of #2 is required to do this]

Learn how to use Omax Layout to line trace and generate a DXF file for the laser cutter (video). You can laser cut the result if you wish, or just show the resulting DXF file to the instructor/TA. Download Omax here.

[no prerequisites]

Use the laser for rastering an image (video).

[completion of #’s 2 and 3 is required to do parts of this]

Learn how to solder (video) then make a wire

sculpture (video). Must have >20 solder joints!

[no prerequisites]

Learn how to desolder (video) and then show desoldered parts & PCB to instructor/TA. Make sure to have >10 desoldered joints to show for.

[no prerequisites]

Make a little sheet metal pedestal with a riveted name tag (video) and then learn how to use epoxy (video) to mount the sculpture (video). Main goal: Cleanliness. Make zero mess!

[completion of #6 is required to do this]

Connectors: learn how to use MTA connectors (video) and how to crimp

JST connectors (video). [no prerequisites]

FabCamp

Show to instructor

or TA when done.

Instructor / TA:

Please keep the volume down when watching videos, or use earbuds.

There will be a lineup at the laser and other tools at the beginning of the camp, please proceed to do other sections that don’t have [prerequisites].

Your Name:

Instructor / TA:

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Tape Follower

Tape Follower deadline: June 13

We are still working on the final shape for this year’s tape follower and will keep you posted on the details for making it.

Below is how last year’s looked. Here’s a video about it.