Beta-testing Chisel version 4.1. Some really powerful additions in there…
A “push” operator is now added (called Carve in Chisel, for naming consistency). This is me after testing it… 
The eyes have been carved (pushed) into the head, including a surrounding margin, forming an automatic eye socket. 
Chisel 4.1 will also include a Sweep modifier, allowing you to sweep any SDF primitive along a spline. A great addition, lifting Chisel up to MagicaCSG level…
Note: the wobbly outline of the swept profile spline is just a quick viewport approximation of the swept spline SDF outline. The swept spline SDF is perfectly smooth.
And Chisel 4.1 will include a Revolve modifier, allowing you to lathe any SDF primitive with an adjustable radius and axis. Also very powerful…
