My First GBC - A Humble Ball pump

"Chio Siong Soh" <[email protected]> Fri, 15 Jul 2005 03:49:42 GMT

Newsgroups	gmane.comp.hardware.lego.robotics
Organization	C S Soh Pneumatics
Message-ID	<[email protected]>

After amassing a heap of the soccer balls from Steve Hassenplug and Larry
Pieniazek, I felt kinda guilty of not having a product to show off. So I got
down and built my very first GBC, a humble ball pump to get the balls moving.

<http://www.brickshelf.com/cgi-bin/gallery.cgi?f=136925<http://www.brickshelf.com/gallery/cssoh/MyGBC/ballpump/ballpump-121-572.jpg>>

It uses the traditional crank and piston mechanism. For the piston, I used the
Technic Piston 2 x 2 Block (#3652) which I found in the Resouce Technology Set
#9609. It works better than a stack of 1x2 bricks with plate on top.

Here is the heart of the mechanism.

<<http://www.brickshelf.com/gallery/cssoh/MyGBC/ballpump/ballpump-118-572.jpg>>

This simple ball pump will probably not make it to Brickfest but it can keep the
kids here (in Singapore) enthralled for hours.

Thanks Steve and Larry!

CS.