Showing posts with label Builders. Show all posts
Showing posts with label Builders. Show all posts

Tuesday, December 7, 2010

December 7 (Builders) Gears, Gears, Gears!

Gears are very useful for building powered contraptions with Legos but it takes some practice trying to get the teeth to sit correctly.  We started out with some simple gear trains and experimented from there.

Gordon's device used gears to turn a bucket that dropped "trash" into a dump-bed.


Josh made a crank-powered contraption (on a braced wall - go, Josh!) that turned a Lego monkey's tail.



 Here are a couple of good books and links for building with Lego gears:
LEGO Technic Idea Book: Simple Machines
Building Lego Robots for First Lego League (pdf)

Tuesday, November 9, 2010

November 9, 2010 (Builders)

Typically, when we are building structures with Legos, we have something specific we are building. That's particularly true in Building Club.  I want Builders to learn different ways to use the pieces, so that they aren't stuck with stacking bricks. Ships (sailing and space) are fine (and these Builders have already come up with some incredible models), but what if you want to build a trebuchet?  You need a little something more.

Shapes
So we are going to work up those skills and challenge the Builders to put pieces together in ways they normally wouldn't think of doing.  At tonight's meeting, we started out easy, by building a frame or square, then increased the level of complexity and ingenuity required to make a variety of projects.
Swingsets
Braced Walls (and a hammer)
How many Technic bricks do you have to stack before you can get the holes in a beam to line up with the holes in the bricks?*
Folded
Extended

Once everyone had practiced making solid structures, we made a simple structure that is meant to move. Several builders put theirs to use by adding hooks and picking up Legos when it was to clean up.  Great job, everyone!




* Six. If you want to make a shorter stack, you have to use plates, too.