This rbs is the regular sized one I had printed. (I tried scaling smaller from here). It's about 1-7/8 inches tall. The track separation is abou...

This is a very small RBS. The ball was supposed to be attached to the top and to the side but the stick that attached it was so small it disappear...

I think this is the smallest I can possibly make the Earring RBS given shapeways minimum wall thickness limitations for white strong and flexible. ...

I revised the Christmas Ornament RBS to have just a little more slope. I'm hoping it's enough to have the marble roll without problem. I added a ...

I've attached a ball to the rolling ball sculpture with the idea that you cut it off and sand it and it should work as the marble. The marble is 5...

The design is for my daughter who has Cystic Fibrosis. The Roses in the Lungs represents the saying "65 Roses" which are sometimes easier for child...

I have not tested this sculpture but it seems to be a good size.