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2 layers143.3 × 116.6 mmLeft, the printed circuit board in 3D

💡 Join 1,000 teenagers and make your first PCB with a $100 grant!

Size
143.3 × 116.6 mm
Copper layers
2
Thickness
1.6 mm
Parts
63
Nets
67
Pads
280
Tracks, vias
455, 28
Pours
1
Routed
Yes
KiCad
KiCad 8.0 (file 20240108)
Created
30 Apr 2023
Updated
31 May 2025

Overview

Left is an open-source printed circuit board by hackclub, from the hackclub/OnBoard repository on GitHub. It is a 2-layer board of 143.3 × 116.6 mm with 63 parts on 67 nets, routed with 455 tracks and 28 vias.

Its parts include 29 diodes, 29 switches, 2 connectors and 1 IC.

README

README.md

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Onboard has ended now :/
But much more to come! Stay tuned :). Sign up here.

OnBoard - Get a $100 grant and make a PCB!

"I’m so glad that young people can create things like PC boards online. May your creativity have no limits!”

– Steve Wozniak, Apple co-founder endorsing Hack Club OnBoard

It's easier than ever for high school students to get involved with programming; all you need is a computing device and internet access. Yet, it's not the same for hardware. While PCB fabs have greatly increased the accessibility for professionally done boards, there is still no clear way for high school students to jump in. This is where OnBoard comes in.


Every student will receive up to $100 to cover PCB manufacturing costs, and join a community of peers– some more beginner and some more experienced.

Requirements

Every design/submission needs to meet the following constraints to be approved:

  • Unique and open-source design
  • Must be orderable on JLCPCB or other approved vendor
  • Must be in high school or younger123 and show proof of school enrollment to submit

Getting Started

You can also go through a video with instructions on how to submit your grant!

Star the repo (Optional)

To follow the repo for updates and show you're participating, click the "star" button on the onboard repo.

Star the OnBoard repo

1. Join #electronics on Slack!

Our #electronics channel4 is where the party is getting started! If you haven't already joined, make sure to add yourself to the channel. And for those who are new to the Hack Club slack, sign up to our community of 13k+ makers through here (don't worry, there isn't an application).

Perhaps ping a little hello to @Kevin Yang?

2. Design a Board!

It's design time! If you've done this before, you can skip ahead to step 3. Most people reading this will be new to PCB design, so we've made a simple tutorial on making an example board.

Check out our PCB tutorials, where you'll make a design from scratch in a free online editor. This is jumping in the deep end- it won't explain everything, but it will give you a taste of what's possible. By the end you probably won't understand what you did or why you did it, but you will have a working design for a board and you'll know how to tweak and edit the design to make it your own.

If you get stuck on these tutorials, or want more example projects to learn from, post in the Slack channel to hear from others going on their journeys.

3. Upload to a Vendor and Take a Screenshot

Upload your Gerber files to JLCPCB.com and add them to your cart. JLCPCB is the default PCB manufacturer, but you can shop around 5 if there's a specific one you want to use 6. Ensure you complete the checkout process by entering your address and selecting a shipping method. Once completed, take a screenshot with all the final costs and shipping!

If you're curious what all the settings are about or how to order for assembly, check out our ordering_from_JLCPCB.md doc! To avoid excess shipping fees or customs, check out the Shipping Tips doc!

It should look like this:

Note: Your screenshot is VITAL since your project cannot be approved without it. You'll include the screenshot in your PR later.

4. Fork!

Fork the onboard repo! This is the where you'll add your project files and eventually PR from!

Fork the OnBoard repo

5. Add Your Design to Your Project Repo

From your fork of OnBoard, create a folder with your project name under OnBoard/projects. To do this, go to the projects folder and click Create new file.

Projects folder

Create new file

Then in the box labeled name your file..., type in PROJECT_NAME/README.md. This creates a README file under a folder called named after your project.

Creating a folder

After this, copy and paste the contents of TEMPLATE.md into the text editor and fill it out!

Paste in TEMPLATE.md

Once your done, press the big green Commit changes button to save!

With your README filled out, head over to add files to begin uploading your Gerber, design files, and screen shot of vendor approval.

Upload gerber files

In all, you should have the following files under your project folder:

  • README.md: A filled out TEMPLATE.md, renamed to README.md

  • cart.png: A screenshot of your order details

  • gerber.zip: This should be the file that you send off to the vendor.

  • schematic.pdf: Export the schematic from your EDA program as a PDF.

    • Go to "File > Export > PDF" in EasyEDA's Schematic tab for this.
  • src/: Make a folder called src and Whatever format your designer outputs should be included.

    • For EasyEDA STD, you need to File > Export > EasyEDA two JSON files - one from the schematic tab and one from the PCB tab.
      • Optionally, for EasyEDA STD, export a 3D Model as .obj as save it to the /src folder

    Export schematic.json in EasyEDA

    • For KiCad, read the Submitting for KiCad, add the .kicad_pcb, .kicad_sch and .kicad_pro files to your /src folder.
    • Or design.json, design.sch, design.brd, etc for other PCB Editors.

Ensure your file names are exactly the same as above.

Your PR should have a structure like this:

EasyEDA STDKiCad
EasyEDA Project ExampleKiCad Project Example

If you have all the above, you're done with this step!

6. Create a PR!

Once you've uploaded your files, you can merge them to the main repo through a pull request! Under the contribute tab of your forked repo, click the big green Open pull request.

Open a PR

That will bring you to the main repo, where you'll initiate a pull request. Follow the checklist, we'll then review your PR and you'll be off to the races!

Submission checklist

7. Get approval and order your board!

Once you submit your PR, it needs two approvals:

  • One verifying your high school enrollment documents, from HCB.
  • Another one from the engineering team, checking that your design follows the grant requirements.

These reviews typically take 24-48 business hours, and if everything is correct, we'll merge your pull request!

After your pull request gets merged, it can take up to 24 business hours for you to receive an email from HCB with a virtual credit card. Make sure to check your spam folder. Then, you can order your board!

8. Ship it!

Post photos of your board in #electronics! We can't wait to see what you make!

John sharing PCB

Example Projects

Footnotes

  1. Home school still counts! ↩

  2. If you left high school early you can also submit. ↩

  3. If you need help with ideas for proof of age, ask in our Slack and we'll help you out! here ↩

  4. This link only works after you've joined the slack. Make sure to get an invite here first. ↩

  5. Don't know which ones you can use? Check out VENDORS.md for more info! ↩

  6. If outside the US you may be charged customs which aren't covered by the grant! Check beforehand. ↩

Parts

63
QtyValueFootprintReferences
29~Diode_SMD:D_SOD-123D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +13
2Stabilizer_Cherry_MX_2.00uPCM_Mounting_Keyboard_Stabilizer_1:Stabilizer_Cherry_MX_2.00uST20, ST29
1Bonsai-C4-extendedBonsai_C4:Bonsai_C4_extendedU1
1HDMI_AConnector_Video:HDMI_A_Amphenol_10029449-x01xLF_HorizontalJ2
1Key_1key-switches:SW_Gateron_LowProfile_HotSwap_GoodSW2
1Key_2key-switches:SW_Gateron_LowProfile_HotSwap_GoodSW3
1Key_3key-switches:SW_Gateron_LowProfile_HotSwap_GoodSW4
1Key_4key-switches:SW_Gateron_LowProfile_HotSwap_GoodSW5
1Key_5key-switches:SW_Gateron_LowProfile_HotSwap_GoodSW6
1Key_6key-switches:SW_Gateron_LowProfile_HotSwap_GoodSW7
1Key_Akey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW15
1Key_Altkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW28
1Key_Bkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW25
1Key_Ckey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW23
1Key_Capskey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW14
1Key_Ctrlkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW26
1Key_Dkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW17
1Key_Ekey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW11
1Key_Esckey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW1
1Key_Fkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW18
1Key_Gkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW19
1Key_Qkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW9
1Key_Rkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW12
1Key_Skey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW16
1Key_Shiftkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW20
1Key_Spacekey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW29
1Key_Tkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW13
1Key_Tabkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW8
1Key_Vkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW24
1Key_Wkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW10
1Key_Winkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW27
1Key_Xkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW22
1Key_Zkey-switches:SW_Gateron_LowProfile_HotSwap_GoodSW21
1OLED_128x32ScottoKeebs_Components:OLED_128x32J3

Questions

How big is the Left PCB?

It measures 143.3 × 116.6 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Left use?

63 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Left KiCad files?

From the hackclub/OnBoard repository on GitHub, at the commit this page was made from: the board is projects/splitfin-left/src/left.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the Left design in my own project?

Its repository states no licence, so its author keeps all rights: ask hackclub before reusing the design.

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