Lasercutting and 3D printing in the Barber Shop

3d printing 

1. Click on Prusa Slicer

2. Pull out the SD card, plug it into the Vanja “Thumb Drive” and plug that into the computer

3. Click on Add.

4. Find your .STL file in the 00001BARBERTECHNOLOGYFOLDER without typing (the list SHOULD be in ABC order … double click or click and open.

5. Click Slice Now in the Bottom Right corner.

6. Click Export GCODE in the Bottom Right corner.

7. Find “USB Drive” on the left side to save it in. (Save)

8. Click the Eject Button (NOT THE X).

9. Remove the Vanja and SD Card and put them back where you got them (Vanja Thumb Drive goes back in the Orange Tray & SD Card goes back in the Prusa- MAKE SURE THE METAL IS FACING YOU.

10. Turn the knob clockwise until it points > to your file and then poke it in quickly like a button. DO NOT HOLD IT IN TOO LONG.

Lasercutting

PROTOTYPES ON CARDBOARD MUST BE APPROVED BEFORE YOU CAN LASERCUT FINAL PRODUCTS ON BIRCH

1. Open your Adobe Illustrator Project. After the previous lasercut is done, click File & Print.

2. On the Print Window, click Print.

3. Click on the red lasercutter icon (next to Adobe Illustrator on the taskbar).

4. If all your lines are bright red and blue, you are ready to move your design. If it is light & gray, STOP! Click on the button with 4 arrows. Some squares will appear. Drag the squares to move your design around. Take care not to miss and accidentally ZOOM in.

5. The “Focus View” button to the left of “arrows button” will put a red laser pointer dot on the material. Click on all the edges and corners to make sure your design will fit on your material (the top has to be open for the red dot to appear).

6. Once you are sure it will fit, click on the magnifying glass button to change the red “Go” button to “Settings”.

Cardboard Click on the Manual Control Tab: MAKE SURE TO CLICK “APPLY” AFTER EACH ROW	BIRCH, go to Materials Database, then click on + next to Natural + next to Wood + next to Hard Wood Then click on the actual words General Hard Woods Set the thickness to ____ (Calipers???) AFTER YOU HAVE RUN IT ONCE, IT MIGHT NOT HAVE CUT THROUGH!! You might need to run red only again!
Color Mode Power Speed PPI Black Skip doesn’t matter, just click Apply Blue Rast/Vect 100% 40% 500 Red Rast/Vect 100% 12% 300	7. BASSWOOD, go to Materials Database, then click on + next to Natural + next to Wood + next to Soft Wood Then click on the actual words General Soft Woods Set the thickness to ____ (Calipers???) AFTER YOU HAVE RUN IT ONCE, IT MIGHT NOT HAVE CUT THROUGH!! You might need to run red only again!

You’re ready to lasercut!

8. Shut the lasercutter, and DON’T LET IT SLAM!! 

9. Turn on the fan, by flipping the light switch on the outlet behind the lasercutter. 

10. Click the big, green play button to start it. 

11. Monitor it closely to make sure it doesn’t catch on fire. If it DOES catch on fire … yell, scream, and freak out until Mr. B comes running over. 

12. After the duh-duh noise from previous cuts, the next person can click File >> Print as you can cut off the fan and retrieve your lasercut!!

FIRE??? If it DOES catch on fire … yell, scream, and freak out until Mr. B comes running over. Post-fire, we open the garage door and point every fan OUT. Leave the exhaust fan on, even though we won’t lasercut for a bit!

Using CAD as a plan for the Wood Shop

 Using CAD as a plan for the Wood Shop

We can plan scale models of what we plan to build in the shop by scaling 1mm : 1".

H.O.W.S. Large Doghouse

Barber Bench

Home Depot Picnic Table

To start off, we need to create 2x4s, 2x6s, and plywood sheets. Then we are going to rip-cut a 2x6 in half. Remember that a 2x4 isn't 2" x 4" ... it's 1.5" x 3.5" because the pressure-treating compresses it and makes it smaller.

The 2x4s that I have in the shop are 8 feet long. How many inches is that?

The 2x6s that I have in the shop are 8 feet long.

The 2x8s that I have in the shop are 8 feet long.

 

Plywood comes in 4' x 8' sheets and the ones I have are 3/4" thick, which is better than 1/2" thick, and will warp less both before we attach the floor and roof and after, when the dogs live in the doghouse.

You need to write down the 3 dimensions in inches for a sheet of Plywood, a 2x4, a 2x6, a 2x8, and a 2x6 cut in half the long way (sort of a 2x3).

Then you are CADding a "Username Lumber" project that has all 5 pieces of wood. Start with the red block and then change the dimensions to match what you have written down.

You can type the numbers in the boxes to easily make it the correct size.

The black cone is how you pull the 2x4 into the air, while the curved arrows (can you see all 3?) are how you rotate it. You can also type numbers in the box when you are rotating.

You should do this for all 5 pieces of wood. Compare with members of your team. Check each others' measurements!

1. Plywood 
2. 2x4
3. 2x6 
4. 2x8
5. Then, copy and pasted 2x6 and change the 5 1/2" length to half of that for a rip cut half 2x6.

TinkerCad NameTag Lesson

Making a Name Keychain in Tinkercad

By Jessy Ratfink March 24, 2020

This is an old tutorial (so some of the tools/buttons look different than now). There are multiple pics, videos, and little descriptions that will show you how to make a VERY small nametag. 

This tutorial teaches you and proves you understand how to do SEVERAL skills on a CAD program to make a 3D-printable object: Sizing and moving objects, Overlapping them, aligning and intersecting a cylinder with another, make the middle one a hole, and grouping them to make a hole through an object.

 

Some hints from Mr. Barber:

• To find the individual letters you need, click on the menu that says basic shapes to get the pull-down menu. Select Design Starters. All the letters are in there, but they are in a weird order.

• Use THICK, BOLD, CHONKY letters. Make your ring and your letters BIGGER than the tutorial says to. (Otherwise the tutorial has you make a VERY small, delicate, fragile name tag.) If you resize, make sure to use  the <SHIFT> button!
  

• Once you have gotten a thumbs-up from Mr. B, you can export as an STL to my BARBERTECHNOLOGYFOLDER in the (S:/) Student Share Drive. Make sure you have named it your username and NAMETAG (ex: jwb2f NAMETAG) first!!!
  
  

When it successfully prints, it will be waiting for you in a nearby orange tray (it MIGHT fail, even if you did everything right ... someone else's could be wrong and "spaghetti", "glob up", or the 3d printer could just mess up). If you pick it up, get a keyring from the purple tray, put it on and get a pic on Mr. B's phone to get your grade before you take it out of the room!

Barber Shop Microcontroller Intros

Barber Shop Microcontroller Intros (using micro:bits and Arduino Unos)
Mechatronics (Technological Systems 8457 and 8463) Exploring Technological Systems competencies #31-42

I. Potato Circuit (with Universal Systems explanation)

1. Make a circuit that can light an LED on and off (you will need to add an on/off switch), using a potato or several potatoes for power: https://youtu.be/-fvmb4lchnA
2. Add more potatoes until it overloads the lightbulb (hover over the lightbulb)
3. Experiment with it. Other fruits? Can it make other items “run?” What can you do that’s different than everyone else?
4. You will have to explain how it applies to the Universal Systems model at the end.

The Universal Systems Model

The Universal Systems model is a way to understand how things work together to achieve a goal. It has four main parts: inputs, processes, outputs, and feedback. Inputs are the things that go into a system, like people, materials, time, energy, and information. Processes are what happens to the inputs to make them into something new or useful. Outputs are the results of the processes, like a finished product or a service. Feedback is information that tells us how well the system is working and helps us make improvements.

In the Universal Systems model, inputs can be things like resources, knowledge, and tools. For example, when a company makes candy bars, the inputs are the cocoa beans, sugar, and machinery they use to make the bars. Processes are the actions that happen to the inputs to turn them into something new. In the candy bar example, the processes would be mixing the ingredients, shaping the bars, and packaging them. The outputs are the finished candy bars that are then shipped to stores. And feedback could be customer reviews or sales data that tell the company how well its candy bars are doing.

Feedback is important because it helps us make improvements to the system. If we get feedback that something isn't working well, we can make changes to the inputs or processes to get a better output. For example, if people complain that the candy bars are too sweet, the company could adjust the amount of sugar they use in the recipe. Feedback can come from many sources, like customer reviews, surveys, or trends in the market.

So, the Universal Systems model helps us understand how things work together to achieve a goal. It shows us that inputs go through processes to become outputs, and feedback helps us make improvements. It's like a big puzzle where all the pieces fit together to make something great!

Input

There are 7 types of resources that provide input: 

1. People
2. Materials - natural, synthetic, raw, industrial
3. Tools and machines - measuring, layout, separating, forming, and combining
4. Energy - inexhaustible, renewable and nonrenewable (examples - heat, light, sound, chemical, nuclear, mechanical, and electrical)
5. Time
6. Capital - money, land, structures, and equipment
7. Information

Processes

It's what happens to the inputs

• All the activities that need to take place for the system to give the desired result
• A series of actions directed to an end
• The inputs are combined by means of management and production.
• Managing - planning, organizing, and controlling
• Production - the actual making of the product

Outputs

The resulting product of inputs and processes

• Everything that results:
• Intended outputs
• Nonintended - ex. waste (pollution) or changes in society (communicating through e-mails
• Outputs can be:
• Desirable
• Undesirable
• Expected
• Unexpected
• Example: The output of our cleanup system:
• Clean, safe, organized room
• Clouds of dust
• Lost teaching time
• Wear and tear on the equipment

Feedback

The reaction to the inputs, process, and outputs. They serve to reinforce or alter the elements of the system.

• Cleanup example - Feedback - the next class coming into the room, If they complain or trip over equipment left out, the system would have to be improved.
• Feedback becomes an input into the system

Check out these 3 Potato Circuits

Watch this video 

Now, you need to apply this system to our Potato Circuit lesson. Explain each of the 4 parts and what they are in your potato. In the end, what is your feedback, and why did I have you watch the second video?

37. Explore the Universal Systems Model.
Exploration should include:

• inputs (e.g., people, materials, time, capital, energy, information)
• processes (e.g., management, production)
• outputs (e.g., intended, unintended)
• feedback (e.g., open-loop, closed-loop).

Process/Skill Questions:

• What is the difference between open- and closed-loop systems?
• How does feedback change the process?
• What is an example of a production process?

38. Analyze a product, process, or system, using the Universal Systems Model.
Analysis should include:

• inputs
• processes
• outputs
• feedback 

Process/Skill Questions:

• What are the intended and unintended outputs?
• How does one know if the system is open- or closed-loop?
• How does the product, process, or system convert inputs into outputs?

Laptop Checks

 I. Students must bookmark these sites in a "Barber Folder" on their toolbar. (Here's how):

1. Barber Shop Website (YOU NEED THE ONE FROM THIS YEAR, NOT LAST YEAR)
2. Barber of Cville Blog 
3. Henley Homepage 
4. Google Drive 
5. Schoology
6. PowerSchool 
7. TinkerCad (Please don't log-in yet ... we will log in as a class)
8. maker:bit / Microsoft Make Code (Please don't log-in yet ... we will log in as a class)
9. Delicious BBQ (students must find this in Schoology and break it out of Schoology before bookmarking!)
10. Daily Slideshow (students must find the link in Schoology that says "BOOKMARK THIS LINK" and break it out of Schoology before bookmarking!)

II. Your charger has 2 pieces, and, therefore, needs 2 labels, one on each part. You need a flag on your removable cord affixed with clear packing tape (your first and last name!) and you need to tape over your label with clear packing tape:

New Way (this year)- notice the shininess of the packing tape!

Old Way (last year)

III. You also need to pin shortcuts on your taskbar to the 2 apps we download:

• Arduino IDE- We download this from Software Center (quick download)
• Adobe Illustrator- We download Adobe Creative Cloud from Software Center, THEN we download and install Adobe Illustrator from CC. These will both take a LONG TIME! Close as many apps and tabs as you can!

Arduino

Adobe Creative Cloud

Adobe Illustrator

IV. Come show Mr. Barber when you're pretty sure you're going to get a good grade (not when you've done only a little of the Laptop Check ... I don't want to enter in a 4/14 F!!)

Hall Passes and Hallway signs for Henley

Hallpasses & Hallway Signs for Henley Middle School

I am blessed to have a lasercutter/engraver in my classroom at school. This wonderful tool allows us to design and make things on Adobe Illustrator that we can cut, engrave, sometimes assemble, and frequently decorate.

This is my How To Video that all students use to create their own "lasercuttable scribble." I purposefully make it simple and my design, well, awful. I challenge them to make something much more worthwhile if they can. The winners lasercut their designs on cardboard. I don't tell them what to design, so it's completely their choice, as long as it has a clean outline, and they engrave something cool inside it.

We use THIS kind of cardboard for this, and for all of our prototyping:

I ask students, parents, other teachers, really anyone that can, to bring cardboard in and my students cut it, using boxcutters, into 12" x 12" pieces themselves. Some of my students come up with truly surprising and wonderful designs! Check out my Instagram feed for some of the Barber Shop's greatest hits!

At this point, I am challenging my Engineering students to create 4' x 4" birch hall passes for teachers that can hang from a lanyard with a Hornet on it (our school mascot), while I simultaneously challenge my Design & Construction students to create 12" x 12" birch signs with a Hornet's News (get it?) to direct 'lost souls' around our school:

Everything has to be a vector, using my original video, so students typically trace some clipart for the decoration on each. Otherwise, the lasercutter/engraver will take HOURS to raster a picture. The student engraves/lasercuts originally on cardboard and shows the boss (me) and their consumer (the person asking for the project) for feedback, before they iterate. The iteration process can repeat several times. When it is deemed acceptable (as Tin Cup tells us, in golf and in life, perfection is unattainable), we cut/engrave on birch for the final product.

I will be posting pics of the prototypes AND final products on my Instagram and Twitter feed, but here is a sneak peek of the first 6 that I lasercut today after school:

Here they are on Adobe Illustrator!

Here is a video of the lasercutter engraving

These final products will be headed out to teachers next Orange Day!!

The hallway signs are still in progress. My students are lasercutting the final cardboard prototype that we will hang in the halls as part of the final feedback process.

The biggest roadblock I've run into is a line of students, waiting for the lasercutter (which is an awfully nice problem to have, right?) ... we will be lasercutting for WEEKS now. Lasercutting and engraving on birch takes almost 4 times as long, too! It's completely worth it to help out other teachers, teach students empathy and the design process. Next week, we move into the woodshop to build picnic tables for outdoor eating here at school during Covid!