The RepRap CAD Model, iTopie, for download:
https://grabcad.com/library/itopie-3d-printer-onshape-cad-1
@Sebastien_Mischler is the designer.
Yep it is me 
And this is a cool redesign (derivative) but need is own page 
Yes, I redesign this model in onshape and post with reprap link.
@Sebastien_Mischler . Credits added.