hacking

An Intro to Sewing Circuits Affordably

/ gravescolleen / 3 Comments

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Paper Circuits to Sewing Circuits

In our #bigmakerbook, I suggest crafting with paper circuits to learn about simple and parallel circuits before delving into sewing circuitry. Last year, my GirlsinTech campers had a great time with paper circuits, but when we began to explore sewing circuits, they ran into many roadblocks. Some had never sewn before, some couldn’t thread the needle, some had pre-conceived ideas about sewing that led to disastrous short circuits, etc. (Note: I did have great success with teaching a parallel circuit bracelet at the DPL, but I also had 3 extra helpers for that workshop!)  So I wanted to try something new this year to get students started sewing and creating circuitry knowledge, but still keep the project simple. I wanted to share that project with you, and give you a list of some of my favorite sewing electronics books that aided me in my own journey to learning about creating and debugging soft circuits.

Keeping it Simple

Last year my students learned about circuits with paper circuits and jumped right into sewing parallel circuit bracelets. Instead of sewing a parallel circuit first this year, I wanted my students to really learn and understand the concept behind sewing a circuit. (Plus, I really want students to be able to go further throughout this year with soft circuits and programming.) Lastly, I wanted their learning to be really visible AND I wanted to make it a really easy project if they had never hand sewn, but still appeal to an expert.

In talking with Josh Burker about some ideas for our workshop during the PineCrest Innovation Institute (info in upcoming post!), I’d thought about adding a sewing circuit element to a workshop. My idea was to share a simple circuit template in an embroidery hoop and let participants add their own artistic flair around the light with fabric paint, markers, embroidery floss, etc.

A few days after our conversation, I realized that this would be a great way to start my club that is focused on learning sewing AND learning about electronics. I wanted to keep it simple by just teaching them how to hand sew with conductive thread (on white fabric so they can see their stitches!) and then each tips on embroidery techniques so my students can design with thread.

I made my own example, but only created the circuit and left my embroidery half-baked. I did this because this summer when I was knee deep in LEGO tinkering, I was struck by a tweet from Ryan Jenkins of the Tinkering Studio. This tweet stressed the importance of creating a “half-baked” idea or prototype because this would “invite participation” more than a fully baked idea that might not “instigate” a learning experience. Ryan and I spoke at length about this concept when I interviewed him for Challenge-Based Learning in the School Library Makerspace.

https://twitter.com/ryanejenkins/status/733163614408859649

I realized that up to this point, I had made some half- baked prototypes on the fly just trying to get my kids interested (and it worked so well!), but then I’d started fully baking some prototypes which did not always lead to student participation.

As Patrick Ferrell of Harris County Public Library added, these half-baked examples get our patrons thinking they can not only make their own, but make one even better!

Below is my simple circuit with a couple of embroidery stitch examples.  I’m hoping to turn it into a cute spidery monster head with a glowing eye.  I promoted the heck out of the club, added new students to my Remind and hoped they would show up Thursday after school! As I was gathering my supplies, I realized I needed more coin cell battery holders.

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Affordable Battery Holder

Since the cheapest coin cell battery holder to buy is two dollars a unit, I decided I wanted to try and make my own battery holder to keep costs low for my club. I found this great tutorial on sewing your own battery holder , but I didn’t have any neoprene fabric, and I was unsure about the safety of creating a battery holder with a different material.

I looked on Thingiverse and found this battery holder then uploaded it to Tinkercad for hacking. If you know much about me, you’ll know that I’m not really that into 3D design. So I messed around and added some ends for conductive fabric tape, and attempted a sewable hole. The first one I made, the battery didn’t fit. So I did some measurements and tried again. I used my new favorite tool conductive fabric tape from the Makey Makey Inventor Booster Kit to function as the battery tabs. It worked! I fabricated my first useful 3d printed thing and I was ready to manufacture! 🙂

It worked well for my students, but I realized I really did need to make a better hole for sewing each tab to the fabric. I asked for expert help from one of my favorite makers….

Thanks to Aaron Graves for helping me make this file presentable! (He helped me adjust the “thing” to the workplane, re-taught me about aligning shapes, and helped make the holes sewable!) Feel free to hack, reuse, and make your own!

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Update 1/20: I’ve since updated this battery holder so that it can be sewn as part of the project and resemble a pirate eyepatch!

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What Students Made

At our first meeting, we were a small, but mighty group! Which was a really good thing, because all of the girls were successful in sewing their first circuit!

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Plus, my half-baked prototype worked swimmingly! The girls did not even follow my pattern for sewing a simple circuit, they forged their own paths. Like any great maker project, some students created simple designs, and others who were already knowledgable with sewing, took it further. One even sewed a cat with her conductive thread! I had to teach her about insulating threads on the fly. Another student decided to try and hide most of her circuitry and is already skilled at embroidering and ready to create her own artistic monster/robot/idea.  Overall it took them about an hour to sew a simple circuit.

The girls happily displayed their projects on the project shelf and asked if we can meet every week! (I have students store projects like these at the library so I can help with debugging as needed.)

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Embroidery Stitches

Now that they’ve sewn their first circuit, I’m going to teach club members different stitches so they can add their own creative ideas to their work using this great tutorial for learning different types of stitches. The circuit is important, but I’m excited to see how this gets them creatively stitching and inspires them to design art with thread.

Great Resources for Sewing Circuit/Soft Circuit/E-Textile

If you are new to sewing circuits and are looking for more resources, here are a lot of things that guided me along the way. Read my past post about teaching a sewing circuit class at the Denton Public Library.  Plus, our Big Book of Makerspace Projects has a full chapter of sewing circuits that range from very simple to very complex!

Learning Scratch in HS 101 – #bigmakerbook

/ gravescolleen / 1 Comment

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Getting to Know Scratch

Today I started the process of teaching all of the freshmen at Ryan High School how to program games in Scratch using project 19 from our Big Book of Makerspace Projects.

I designed this project to be a hybrid between Pong and a chasing game.  I was hoping that my instructions would teach kids how to make games, but also allow for a lot of personalization. AND IT DID!  Instead of giving the explicit instructions from the book, I created “exploration” sheets based on the book so that students could explore Scratch to learn how to create games. I made them as Googledocs, but also offered the option of paper for the students who preferred it. (And surprisingly a lot of them preferred paper!)

Student Personalization

I was so happy today that as soon as students started making games, they immediately came up with their own ideas of how they wanted each game to function.

  • “Can I make the ball bounce off a paddle like pong?
  • “How can I make a ghost that springs back and forth on the screen.”
  • “I’d like to make a game where two players try to catch a basketball and then shoot hoops and score.”
  • “Could I make apples fall from a tree to hit my sprite?”
  • “I want to make four sprites like Scooby Doo characters that once one is out of the game the next one will play. How do I do that?”
  • “Instead of dodgeball, can I make my character kick a soccer ball into a goal?”
  • “Can my sprite fly?”
  • “How can I program two players? Use the WASD keys?”

More to Come!

I loved all the hacking and personalization. Last year, I attempted a similar game instruction and it did not go as clearly as this one.  I found that when students collaborated this year, they had more profound ideas on what to include in their Scratch games. However, if students worked alone, they were able to get further along in their programming.

I also had many native Spanish speakers that found the translation button in Scratch! It was so helpful for me, because I was able to teach these second language students how to program and I learned more Spanish to boot.

I have three more days of teaching Scratch before getting all of the freshmen at Ryan into the library for this coding practice. I can’t wait to see what they all create!