Plans for building a three-column LEGO abacus; suitable for ages 7 and up


I used the following two kits to get parts I needed to build my LEGO abacus:

If you are a LEGOmaniac, you can gather the parts from whatever kits you may have available.

Instructions & Complete Plans

Click on each image for the enlarged version.

Build the top frame. Add the rods. Add the top beads & middle frame. Add bottom beads & connectors. Build the bottom frame. Add the bottom frame & finish. The completed abacus.


Bricksmith abacus

LEGO Abacus: model designed in Bricksmith (Click to enlarge).

The LDRAW file, Abacus.ldr, is available for download. I designed the model using Bricksmith, the Mac version of LDRAW.