[Torchhead]

Can the demo/trial version of sheetcam's post proseccor be edited? No matter what I edit or change I can't seem to ge the tap file to change. Everything stays the same

Yes but if you edit it outside the Post Processor Edit button in SheetCAM it saves it in another location and you mi\ust IMPORT it to the SheeCAM library of Posts. If you change the name and save it as something else and import and use that its a lot easier (and safer) The license has noting to do with the POSTS that are written in an open language called LUA.

[Torchhead]

SheetCAM has INTERNAL variables and EXTERNAL (defined by you) it can use. That particular variable is set in the Job Options/ Rapid Height. 1.5mm is not much clearance for rapids

If you open the POST tab in SheetCAm you will see a button that says Post Documentation. it would be a good place to start to understand how the POST and SheetCAM exchange data.