Question: If a rabbit laid an egg, would...

Brainwave Pro 3-Axis CNC controller For Kossel $185.83 The Kossel Pro uses the Z-Designs Brainwave Pro controller, which is the product of a close collaboration between Terence Tam and Mike Ziomkowski, based upon Matthew Wilson's original Brainwave low cost 3D Printer controller. Kossel Ball Joint Set Kit $78.00 These are not repurposed RC Car ball […]

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 […]

Here's something to take a boo at a workshop by Tom Mair and a Grade-5 class. From his message to the BEAM mailing list: Last year I helped Mrs. Corbett's Grade 5 class build robots and we had a blast (see a review here http://www.aasland.com/hcrd.html). Well, this year we are doing it again. We're building […]

28BYJ-48-16 16:1 Stepper Gearmotor $5.85 Originally designed for control of HVAC vanes and similar low-demand equipment, these stepper-motor gearboxes have lots of hacking potential. This is the lower torque / higher speed 16:1. 28BYJ-48-64 64:1 Stepper Gearmotor $5.85 Originally designed for control of HVAC vanes and similar low-demand equipment, these stepper-motor gearboxes have lots of […]