M3x10mm Allen Hex Socket Head Cap Black Steel Screw, 10 pcs 1.90 M3x10mm Allen Hex Socket Head Cap Black Steel Screw, 10 pcs M1.7x4mm 304 Stainless Steel Cross countersunk head Machine Screw $1.95 M1.7x4mm 304 Stainless Steel Philips head countersunk machine screws, qty 10 M3x3mm Hex Socket Head Set Screws Cup Point (grub) $1.95 Don't […]
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?
MORE POSTS
Interesting Mini-sumo build
This mini-sumo design by Jeremy Bloyd-Peshkin features our wheels, and one of our favourite building materials, Sintra. We can't laser-cut sintra (PVC=bad stuff when burned), but milling it works well, as this builder shows. The asymmetric motor layout works, as proven by this contest-winning design (scroll to the bottom of the page).
Project (the day other than) Monday: Ice...
Inspired by the Ice Bulb published on Instructables, we decided to create our own version. Ice bulb suggests that we use a balloon to shape the ice and before it freezes, add an LED so that it can glow. Since we decided to use a whole bunch of LEDs (on a string), we opted to […]
Looking for additions to our own IT Crow...
(Thanks for the interest - welcome Chris to the team!) Our IT task at Solarbotics have grown beyond "Did you try turning it off and then on again?", so we're in the hiring market for an IT Guru & website manager. Please, we're only interested in applicants that can work here, in Calgary, Alberta. Sorry, […]
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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.