...Well, sorta. We won't have a full booth like we have in past faires, but that's because Austin is sooo far away, and it's not easy to bring all our gear down that far. So we'll be down there assisting in the Maker Store. Feel free to stop by and say hi! We'll be near […]
Circuit: Stepper Motor
Dave Hrynkiw
July 12, 2007
This is a neat little one-chip circuit we originally tuned for use with our "SM1" Stepper motors. We've presently sold out of the motor, but this circuit has proved to be a good unidirectional (1-way) driver for small stepper motors. Parts required are:
- 74AC240 Octal buffer chip
- 4 x CP0.1µF capacitors
- 100k resistor
- 2 x 47k resistors
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GM10 Modifications
Grant has taken some time to document how to turn a standard 81:1 GM10 pager gear motor and turn it into a 9:1 version. Why would you want to do that? You tell me - I'd love to know what project you build with a speed demon like that! Read More...
New Solar Cell!
As Panasonic is no longer manufacturing their line of Sunceram solar cells, we've been on the hunt for suitable replacements. Here's our first find - the SCC3733! It's a polycrystaline cell in an epoxy casing, so it's a bit heavier, but much, much less prone to breaking or burning off of the solder-pads. It's also […]
New Product!
We've been shopping again, but the accountant won't let us hoard all the goodies for ourselves. SOOO, we're announcing the following goodies! RBFB: The Book "Robot Building for Beginners" by David Cook, which is an excellent reference for a newcomer to robotics. It's an ideal companion for our own book "Junkbots, Bugbots, and Bots on […]
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Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.