I am looking for guidance on how coordinate systems interact with loops. I can get stuff to work but often when I make a change inside the loop my Theoretical positions don't work correctly. As well as looking at Theoretical positions that are not correct for the current zero position but the loop works fine.
At end of each loop I recall starting coordinate system. Not sure if this is correct.
Depends what you're trying to do. PC-DMIS does want to substitute theoretical values with applied changes. When you loop, it's best to be in some sort of fixture or machine alignment, rather than a part alignment.