Tower of Euler

Tower of Euler This is a part of a series of towers/penholders made out of digits. Tower of Pi: http://www.thingiverse.com/thing:271769 Tower of Tau: http://www.thingiverse.com/thing:295304 Tower of Euler: http://www.thingiverse.com/thing:783098 Tower of Phi: http://www.thingiverse.com/thing:788653 Pi - Penholder: http://www.thingiverse.com/thing:271353