Meta is my self-balancing ride-on robot. Here’s the first video (5.5MB, DivX AVI) of it with myself and Cameron riding (27/Aug/2006).
Hardware
* Two second-hand 24V wheelchair motors, obtained with gearbox, hub, wheel, and tyre attached
* 2x OSMC boards (Open Source Motor Controller) from Robot Power
* 1x MOB board (Modular OSMC Brain) from Robot Power
* 1x IMU Combo Board - ADXL203/ADXRS401 gyro/accelerometer from Spark Fun Electronics
* 6x 12V 7AH sealed lead-acid batteries
* Misc hardware from Dick Smith Electronics, Jaycar, Aztronics
More Hardware
I’m indebted to Paul Schulz for assisting me to build Meta. The design is trivial (bolt motors onto pieces of wood with metal brackets), but hardware isn’t my thing!
* 2x pieces of wood
* 1x broomstick
* Misc hardware from Bunnings
* Gaffer Tape
from, with photo:
http://www.netcraft.com.au/geoffrey/meta/
Other science projects:
How are you today? I fixed my email address, I just had to log into it again. Boy they lobby hard to get you to pay for email! LOL!


From:
Is it an ornament? A place setting? A take on the English Christmas cracker? This clip-art tree, filled with candy, is all of the above. So plant several around the holiday table this year. After eating the sweets inside, each guest can take one of the paper trees home and hang it on the real thing.
Giving Tree How-To
1. Download templates and print onto heavyweight matte paper; cut out. Brush craft glue onto blank area of tree template. Roll template into a cone shape; let glue dry.
2. Using tree-bottom template as a guide, cut a piece of mat board to match. Using a straight-edge and a craft knife, score a line across mat board. Score the same line using a bone folder.
3. Cut 3 feet of silver embroidery floss; double up the strand. Brush glue onto scored line of mat board; center floss on top, and let dry. Glue tree-bottom template to mat board, sandwiching floss.
4. Coat a wooden spool with light-blue paint; let dry. Using a 1-inch craft punch, cut 5 circles from a sheet of silver card stock. Glue circles together in a stack. Glue 1 end of spool to tree bottom and other to silver stack.
5. Thread ends of floss through treetop, and knot as shown. Using a 1/2-inch craft punch, cut 2 circles from silver card stock; glue along edges, with floss in between, leaving enough space so circles can slide along floss.
6. Fill tree with candy. Gently pull floss taut until tree bottom fits snugly; slide circles down to secure top.

