Loft stl https://www.youtube.com/watch?v=-Yb2oXx1yUo https://cad.onshape.com/documents/87f8cd26b33da3f3a78c5463/w/35c83db6287999e3e3e01cea/e/d4a6585966963dd54538412e?renderMode=0&uiState=63e98760e83dcc4de943d50f
