I am having trouble making the lense sit on top of the prism. After that I want to remove the excess material of the lense that sticks out since I am more interested in the position of the convex point of the lense. I hope that makes sense. Please see diagram. Please help.
Do you select a 2d view of the screen first (top, side, front) and then draw? Please let me know your tricks.
Thanks Sketchup Community!