This toy has been designed to assist those caring for/home schooling young children. It allows number "sentences" to be created from a series of interlocking blocks, which could be used in a variety of educational games and at levels from pre-school (kindergarten) to primary school.

The design was generated in OpenSCAD and the SCAD file can be found here:

[https://github.com/davepcollins83/numberblocks](https://github.com/davepcollins83/numberblocks)

Users can use this file to generate their own custom blocks with additional symbols - for example parentheses for more complex equations.

Note - as I do not currently have access to a 3D printer, this design has not been test printed - but I am confident that it will print successfully without support material as I have minimised overhangs. If anyone is able to test print and send feedback or a photo, I would be very grateful!