Month: June 2010

Brick Show now open

Published / by Bill

This was the opening weekend for the the Brick Show in San Leandro, CA at the Bay Area Family Church, organized by Johannes van Galen and featuring BayLUG/BayLTC. The show is ongoing through July 25 so come on out and check it out!

The show features a large train layout and various other displays in all themes of LEGO. Admission is $5 each for adults (age 16+) and $3 for kids ages 3-15. Kids under 3 are free.

I took a bunch of pictures around the display today. Click on the image to see them:
Brick Show (June 27)
You can also view the pictures as a slide show on Flickr.

Seven-way radial symmetry technique

Published / by Bill / 2 Comments on Seven-way radial symmetry technique

I just stumbled across a way to build a 7-way radial symmetry in LEGO.

7way symmetry

A technique for building 7-way radial symmetry in LEGO. The blue 2×2 plates are connected to each other using plate hinges in a ring, and when I built that I noticed the ring looked like the right diameter to go around a 4×4 round piece. The hinges actually protrude a little into the center, but by sandwiching the two 4×4 rounds together and filling the space inside with a round 2×2 plate and seven (leaving one stud open) 1×1 round plates, you can make it all fit nicely. And since the 4×4 rounds and 2×2 round plate have axle holes, it can easily be connected to any Technic mechanism.

If you stick an axle in the middle it twirls like a top – it’s very well balanced.

LDraw code after the break: