Download: free
Website: Thingiverse
Download: free
Website: pinshape
Tags:
childrens, calculus, ball-, tens-unit-abacus, tens-units-abacus,
Download: free
Website: Thingiverse
Tags:
abacus, accessible abacus, cranmer, cranmer abacus, soroban,
Download: free
Website: Thingiverse
Download: free
Website: Thangs
Download: free
Website: Thingiverse