Sumovore Line-follower

Did you see the lunar eclipse on Monday night? I wish they had it rescheduled for Sunday afternoon, so all of us night-owls-who-have-to-get-up-early could watch that. But noooOOoOO. But at least the internet will save us. At least from information deficit. Laser Cut Helical Springs I wonder if zigzag helical springs can still travel down […]

In compliance with the upcoming holidays we decided to contribute to the obligatory dose of Christmas ornamentation in the shape of the well-known coniferous tree. A tabletop freestanding tree with LED strings and a flashing star on top seemed like an easy enough thing to do. We also wanted to add a tech twist to […]

Here's a funky motor for you - the GM19! Slightly larger than the other metal gearhead series (GM11-14), and with a larger motor, this 35:1 beasty looks like a good contender for building mini-sumos or other small, speed-hungry robots! But be warned: It is a bit strange. The gearhead is mounted askew to the motor, […]

Mini-360 DC-DC Buck converter $3.70 Super compact and capable, this DC-DC buck converter can knock down a voltage from 23V to as low as 1V with up to 95% efficiency. Wonderflex Heat-activated Composite Plastic Sheet $79.00 This is a heat-activated, formable polyester plastic sheet that is very popular in making prop armour and other rigid […]