I am a long time (in the past) 3D Autocad user. My Autocad licence lapsed quite a few years ago. I'm now using Draftsight Professional to try to do what I used to do in Autocad (3d wire frame modelling).

I am totally baffled by the way the CCS works (or doesn't work) in Draftsight. I just want to be able to draw on a custom CCS. I can move the CCS around no problem. I can see it is where I think it is by turning the grid on. The problem comes when I try to draw lines on it. The line endpoints seem to be landing on another CCS. I have tried changing multiple settings but nothing seems to make it work.

Could some kind person give me some pointers please?

Thanks, Ben