AgesSuitable for ages 7 and up.
- LEGO set 8032 Generic Construction Set (bricks)
- LEGO set 8412 Nighthawk Helicopter (axles and connectors)
Of course, if you are a LEGOmaniac, you can gather the parts from whatever kits you may have available.
Instructions & Complete PlansClick on each image for the enlarged version.
The LDRAW file, Abacus.ldr, is available for download. I designed the model using Bricksmith, the Mac version of LDRAW.
AcknowledgementsThis project was inspired by a query from William Hart (grade 6 teacher at Olivet Elementary School in Santa Rosa, California) for ideas for class projects about the abacus. Thanks also, to Jim Koch for introducing me to the joys of LEGO Technic.
ColophonSometime in 1995, the LEGO abacus plans (abacus.mif.zip) were designed using FrameMaker 3.1 on a Sun SPARCstation LX running SunOS 4.1.3. The images were grabbed and converted to GIFs using xv 3.10a and then coloured using xpaint 2.1.1 running on a Sun Ultra Enterprise 2 server.
The LEGO lawyers insist that I state that LEGO is a trademark of the LEGO Group.