Hello, i am new to Rhino and am wondering how i go about thickening models that have geometries such as this model. I have tried offset surface multiple ways but nothing creates a enclosed surface. There are no naked edges on the model, and even when blend all edges it still produces a failed offset. i am wanting to offset the model by 2mm. I have no idea how to go about this, any advice would be appreciated.
model.3dm (304.3 KB)