Things I've Built
A Whole Startup: NarwhalEdu CopyCat Arm Kickstarter
2016. Not sure how to summarize a whole startup. Shipped ~100 kits for creativity in engineering class to 6 countries. This link will break but https://nrobot.dev/portfolio/2013/05/NarwhalEdu-Kickstarter/
Custom PCB: Charlieplexed LEDs on Attiny45 (for PoV Yoyo)
2011. Can I write C and read microcontroller datasheets? Probably, but it'll be painful. https://orangenarwhals.com/2011/12/pov-yoyo-update-v0-1-and-failcode-also-hello-world-in-microcontrollers/
Laser Pancakes (with the LaserPecker 2)
2023. Hand-held portable lasercutters = party time! https://orangenarwhals.com/2023/04/pandemic-diary-90-holding-house-parties-again-pancake-etching-with-lasers/
Translation Shirt/Apron: Offline and Realtime
2023. translation shirt (well, apron) – offline and realtime, and fashionable AF (ok j/k on the latter) https://orangenarwhals.com/2023/05/translation-shirt-well-apron-offline-and-realtime/
ICRA: Fiducial-Based Six-Axis Force-Torque Sensor
2020. Novel 6-axis force-torque sensor. Commercial ones: $3k. Ours: $30. Uses a webcam, made using hobbyist-grade 3D printer. Designed to fit in a robotic finger. Published at ICRA :) https://sites.google.com/view/fiducialforcesensor
Staubli RX60 Self-Portrait
2016. Did internet sleuthing, (emailed london hackerspace, got manual from Staubli) scripting gcode If you have a Staubli RX60 for some reason, docs for your Win2000 fun: https://orangenarwhals.com/2017/07/staubli-arm/
Robot Arm Assistant: Picking up cubes with OpenCV tag+color threshhold, voice recognition, LewanSoul 6DoF Arm
2022. https://orangenarwhals.com/2022/01/smart-e-robot-arm-assistant-helps-you-pick-up-cubes-wip-post-1-voice-interaction-with-mozilla-tts-and-vosk-lewansoul-6dof-arm-python-library-arucotags-opencv/
Custom glyphs using CircuitPython on the $17 Waveshare rp2040 LCD
2023. add unicode characters to a BDF font file for more c a t _ฅ^•ﻌ•^ฅ_ https://orangenarwhals.com/2023/06/how-to-get-circuitpython-working-on-the-waveshare-rp2040-lcd-board-bonus-add-unicode-characters-to-a-bdf-font-file-for-more-c-a-t/
18 Servo Hexapod
2011. Do you want a dancing hexapod? No CAD? no problem! https://www.instructables.com/Simple-18dof-Hexapod-Arduino-nano-optionally-wit/
Nyancake - Taste the rainbow?
2011. See instructions at https://www.instructables.com/CNC-Nyancat-Food-Mold-nyancake/
Lutetium
smartDIYs 
Brian Brocken
Taiwo
MasterOfNull
Alex Martin
Joshua R. Taylor
Johannes Hassler
lion mclionhead
Dylan Bleier
Francisco Piernas
Jason Cho
tomcircuit
Tyler Ward (Scorpia)
GOAT INDUSTRIES
Andrei Gramakov