O'Cello solid files

I use OnShape, but Onshape doesn't play nice with mesh files (like STL), so I created a solid model of the main body of the original O'Cello. This is it. Enjoy Parasolid and STEP files. Or find my Onshape document [here](https://cad.onshape.com/documents/556207bb6a7466aabbce769a/v/83b68cab05b5c4e5f087ece1/e/ce8330dceceeaab5244005d8?renderMode=0&uiState=6689dc62cf8f631224ca5920).

See my other remix for my modified O'Cello.