What we have today are not Fairly Expensive Tortillas or Fortunately Edible Theremins, but Field-Effect Transistors. If you know what it is, I will leave you to explore: 1RFZ44N N-Channel FET $2.50 The IRFZ44N is a very powerful useful N-Channel FET, with only 0.0175ohms resistance pushing 20 amperes at 5V! FQP27P06 P-Channel FET $0.95 A […]
New GMPW Wheels!
Dave Hrynkiw
June 21, 2007
No more rubber band tires for us! We've invested in getting our very own wheels made for us, with molded-on thermoplastic rubber wheels!
These wheels are slightly larger in diameter than the old style, measuring 69.2mm (2.72") diameter and 7.65mm (0.30") wide. Ah, but how good are they? They're definitely better than the old style! We know from head-to-head tests that these have better traction than the rubber-band tires (definitive numbers are coming...). We've also spun them up on our lathe to see how true the mold process is, and they're quite true - no visible wobbling!
A new enhancement is a built-in opto-reflector 32-step pattern! Built to be bolt-on compatible with the Wheel-Watcher series of wheel-encoders, all you have to do is paint the groove white (for dark plastic wheels), and scrape away the raised surfaces to generate a sharp, accurate 32-stripe pattern!
Did we mention that there was no increase in price for all these enhancements too?
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Holiday Hours and Shipping
This is a quick note to announce our holiday schedule, which is going to be as follows: December 24 (Christmas Eve)- 9am to 12pm (half day) December 25 (Christmas Day) - offices are closed December 26 (Boxing Day) - offices are closed December 31 (The Day Before New Year's Day) - 9am to 12pm (half […]
Christmas Eve Shipping Deadlines
Within Canada Purolator Air - Dec 23 Purolator Ground - Dec 16 Canada Post Expedited - Dec 11 Canada Post Xpresspost - Dec 22 To The United States UPS Express (to United States) - Dec 22 UPS Ground (to United States) - Dec 12 USPS Expedited (to United States) - Dec 9 Xpresspost (to United […]
Robots Rising re-run
Did you miss the award-winning documentary "Robots Rising" the first time? A very good documentary on the present state of robotics, including a few clips of our own Mr. Tilden. Worth investigating (Airing April 11 to 19). Read More...
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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.