Oversized montessori sliding rules by Philll 3d model
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Oversized montessori sliding rules by Philll

Oversized montessori sliding rules by Philll

by Thingiverse
Last crawled date: 3 years, 1 month ago
These sliding rules are oversized. The biggest one is 400x40mm. This size is choosen because it is the maximum that is possible with my 3D printer. But that is not the only reason. Normaly such sliding rules are quite small. With bigger rules more kids can use them together and learn together.

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