Thanks for the pictures, this is quite a complex part.
This looks like an engine cover of some sort, is it mainly automotive parts that you are producing using SprutCAM?
For anyone that is interested in giving SprutCAM a try check out my updated download page by using the 'Links' button at
PressGo CNC Ltd
There are also some tutorials in *.pdf format to get you started.
The demo version does not require activation, and is identical to the full version with no CNC code created.
The 'Full' versions require activation, but will produce CNC code and will remain active for 30 days.
Dave