Canada & Independence Day

Well. Hello there. It's been a while, hasn't it? Have have you been doing? How did that thing end up going for you? And those mutual acquaintances of ours? All doing well, we hope. Except for that one mutual acquaintance. You know, the one with the eye patch and kangaroo. I don't know about you, […]

Grove - 4-Digit Display $7.25 4 digit displays are usually a 12 pin module. In this Grove gadget, we used a TM1637 to scale down the controlling pins into 2 Grove pins. Wireless USB Adapter $16.50 USB WiFi (802.11b/g/n) Module: For Raspberry Pi and more. Grove - Screw Terminal $3.50 Grove - Screw Terminal with […]

It's really nice to receive pics of projects people have built out of our book "Junkbots". Here's one of the latest: the Pendulum by Christopher Pepe. Nice magnetic suspension mechanism! Read More...

Our GraviTrack Marble Machine Kit is our newest addition to the Marble-Drop mechanism family. Elegant, swooping hands pass marbles to each other to the top of a sweeping multi-level track, available in either solar or battery configuration! Approximately twice as wide as our spiral Solar or Battery Marble machine kits, the GraviTrack is still desk-top […]