Shape Of Constant Width

thingiverse

This shape has a constant width if you place a book on top of it and try to roll it around, it will easily rotate. It's an unusual geometric figure. It was not designed to be printed at actual size, so resizing will be necessary to achieve the desired output. Warning: Some users may experience difficulties printing due to its extremely small scale, which can cause certain programs to interpret inches as millimeters. To resolve this issue, simply set the scale to 2540% for full-size printing.