Ruler with foldout stencils for kids. 

Printing

Needed:

• 1x Top
• 1x Connector 
• 1x one of the Bottoms

Note: Can be printed without supports. 

Assembly

Push the Connector through the front face of the “Top” part. Then push the Bottom part over the connector from the backside. It should all snap into place and move freely.

Note: If the connector breaks, you may try printing it rotated by 90° on the X axis. This should give it a bit more stability, but requires supports.

Stencils

I added a “blank” stencil part, so you can arrange different shapes inside Prusaslicer to create your own stencils using negative volumes.