-Block needs to be printed with support

-Block is hollow. You can pause the print and add a 4mm steel ball to weigh the blocks

-parts were modelled in Autodesk Inventor 2023

-test prints were done with 0.15mm layer height on a Prusa I3 Mk3s 

-This is a work-in-progress to create replacement parts for an old math aid for visual impaired students.

-Blokje4 is a model, drawn with the same dimensions as the original cube.

-Blokje6  is a model optimised for 3D-printing, without the rounded edges on the dots.