We've been a big fan of Openbeam for a long time, and when Terence Tam started producing 3D printers using this material, we were hopeful that this would be a great fit for his operation. Nice material, great engineering - what could go wrong? LOTS. Follow his spiral down the Asian rabbit-hole when his selected […]
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
MORE POSTS
Sumovore Atmel Brainboard code upgrade
The Atmel Brainboard is a very popular add-on to our Sumovore Sumo robot. But with newer releases of the WinAVR GCC programming suite, there is a difference in the way the source code is handled that will make it not compile and load properly. Bob Cook has been nice enough to tweak our source to […]
Friday New Product: LED Embers and Conne...
This is a random photograph of the sun the other day for attracting attention. Now, you can see what we got to offer this week: USB A Female DIP 90 $1.25 These type 'A' female USB connectors are the standard when it comes to connecting peripherals to your project. LED Embers - Pack of 6 […]
Website maintenance
So, didja all have a good Holiday Break? Yeah, we did too. Need a vacation to recover from the vacation... Enough chit-chat: Just a quick note to let you know we're expecting a bit of an outage January 6th at 2am MST (that's -7GMT, I think). Our server is being affected by an upstream upgrade […]
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Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
Please visit www.P65Warnings.ca.gov for more information. This item was manufactured prior to August 31, 2018.