I'm attempting prepare this object for 3D printing in VeroClear resin. The two halves of the icospheres have been solidified and have a default thickness of 10mil. The objects themselves are scaled to be about 9" on the x- or z-axis. However, I'm aiming for a higher thickness (100mil). When I increase the thickness value in the solidify modifier, the model breaks.
File link: Star Blender File in Google Drive
Relatively new to Blender and modeling for 3D printing, so I'd really appreciate any suggestions on how to proceed. Thanks!