LIVE AT THE FAIR — see the drawing machine run!

Hi! I'm Ellie. I teach kids electronics.

I'm 15 and I build robots, drawing machines, and software for fun. At this booth: live demos, 3D prints you can buy, and hands-on electronics lessons for kids.

0 families have signed up for lessons already

The stuff I built

Projects on display

● LIVE DEMO

Drawbot

A half-meter-square drawing machine I designed from scratch to be as fast and cheap as possible. CoreXY belts move the pen across the paper while a scotch-yoke mechanism lifts it between strokes. Watch it draw live at the booth.

  • 0.5 m × 0.5 m drawing area
  • CoreXY belt design, NEMA17 steppers
  • Arduino Uno brain, custom code
  • Built for Hack Club Highway
ArduinoCoreXY SteppersCustom code
ROBOT

Tarmo5

A fully 3D-printed, open-source robot car. I printed the chassis, wired the electronics, and got it driving — then made it mine. It's the project that turned me into a maker.

  • Entirely 3D-printed frame
  • Custom electronics + remote control
  • Open-source build (Building Tarmo)
3D printingRC Electronics
MAKER RADIO

Foxhunt

Spy-gadget hide and seek. Hide the "fox" beacon somewhere in the house, then walk around with the hunter — it beeps faster and flashes RSSI on an OLED screen as you get closer. Real amateur radio fox hunting, on cheap 2.4 GHz modules.

  • ESP32 + nRF24L01+ radio link
  • OLED signal-strength display
  • Beeps faster the closer you get
ESP32nRF24L01+ OLED
FROM SCRATCH

Graphing Calculator OS

An operating system I wrote from scratch — no Linux, no Windows, just hardware. Type an equation and it boots straight into a graphing calculator with animated plotting and implicit curves.

  • Handles keyboard, mouse, and plotting
  • Up to 6 equations at once, color coded
  • Supports implicit equations (circles!)
OS devC / asm Math

My main thing

Electronics lessons for kids

Taught by a kid who loves this stuff. Small groups, hands-on, and everyone takes home something they built. Ages 8–14 — no experience needed.

Taster

$10

One hour. Build a blinking LED circuit and take it home.

  • Learn what a circuit is
  • Solder your first joint
  • Take-home blinking badge
Interested

MOST POPULAR

Maker Workshop

$35

Four weekly sessions. From circuits to your own Arduino project.

  • Circuits, sensors, and soldering
  • Program an Arduino (no prior coding needed)
  • Build a final project of your choice
  • All parts included
Sign up

1-on-1

Ask at the booth

Private sessions on whatever your kid is curious about.

  • Pick your own project
  • Robots, drawing machines, 3D printing
  • Flexible timing
Interested

Prices listed for the fair. Group discounts for two+ siblings. Parents are welcome to sit in. Questions? Ask at the booth!

Made here, printed here

3D-printed goodies

Every print is designed and made on my own printer. Great stocking stuffers, desk pets, and "I made that" gifts.

Keychains

Rockets, gears, foxes — pick your design.

$2

Phone stands

Strong enough for a tablet. Custom colors.

$5

Mini planters

Cute desktop planters that actually hold plants.

$4

Custom prints

Bring a file or an idea — I'll print it for you.

from $6

Cash only at the booth. Everything printed in front of you.

The part that matters

Tell me what you want to learn

Leave your details and I'll text or call you back after the fair. Takes 20 seconds — and if you're here with your kid, just point at the thing they liked and I'll find a class for it.

What sounds fun? (pick any)

Form acting up? It still saves your spot and I'll reach out — or just grab me at the booth.