This is a model of Boy's Surface, a one-sided surface with no edges and no pinch points.

This is a modified version of Trapped Outside, without the cut-away track or internal ball. Shapeways treats the entire inside of this model as solid, hence the higher price.

Other versions:

The original design is here: http://www.shapeways.com/model/40473/trapped_outside.html

Without the ball: http://www.shapeways.com/model/237518/trapped_outside__track_.html

Solid, hollow inside: http://www.shapeways.com/model/233704/trapped_outside__solid_with_hole_.html

Remember to give this model five stars if you like it!

© 2011, Matt Chisholm. All rights reserved.

This is a model of Boy's Surface, a one-sided surface with no edges and no pinch points.

Other versions:

This is a modified version of Trapped Outside, without the internal ball.

The original design is here: http://www.shapeways.com/model/40473/trapped_outside.html

Solid, hollow inside: http://www.shapeways.com/model/233704/trapped_outside__solid_with_hole_.html

Solid: http://www.shapeways.com/model/233703/trapped_outside__solid_.html

Remember to give this model five stars if you like it!

© 2011, Matt Chisholm. All rights reserved.