David Hartkop

Supplemental video for Cool Gearing Sun To Sun Epicyclic Gearing

David Hartkop

Experimental Unpickable Lock

David Hartkop

Presenting the Gearless Gearbox

David Hartkop

Playing Turing Machine Card Game from Start to Finish

David Hartkop

This Card Game is a COMPUTER!

David Hartkop

Decoding Unbreakable Encryption WITHOUT a Computer!

David Hartkop

Zen river rocks up close for meditation and enjoyment

David Hartkop

ScarySnowflakesVideo

David Hartkop

Cool Gearing Sun to Sun Epicyclic Gearing

David Hartkop

Solar Roast Coffee Commercial Spot - Cowboy Smoothies

David Hartkop

David Hartkop Podcast #4 - Thinking Additively

David Hartkop

David Hartkop Podcast #3 - Winter Edition

David Hartkop

David Hartkop Podcast #2 Star-Struck

David Hartkop

David Hartkop Podcast #1 Weightless

David Hartkop

LED chaser with a TinyFPGA BX

David Hartkop

Smart-Ice Vaccine Cooler

David Hartkop

Build an open-source off-grid medical instrument sterilizer

David Hartkop

Open Source Medical Autoclave for Developing World

David Hartkop

APOCALYPSE ENGINE A stirling engine system scaled for home power use.

David Hartkop

A recorded live broadcast showing the DIY Time Lapse Camera Rail & Book

David Hartkop

Create Your Own TIME LAPSE CAMERA RAIL

David Hartkop

161206 EsphericVideo

David Hartkop

Satima Anankitpaiboon demonstrates a 3D printed prosthetic hand

David Hartkop

Jazz Concert Recording Session at Hartkop Productions

David Hartkop

Split Ring Compound Planet Epicyclic Gear

David Hartkop

Support the Ready RepRap Book

David Hartkop

Espheric Spherical VR capture solution for drones

David Hartkop

Underwater view of crabs crawling into a trap

David Hartkop

Stand Alone Metal Clay Extruder Head

David Hartkop

MMM04 - Setting up open source software

David Hartkop