Bfb 3D Touch Set Up And Operation Manual page 41

Potential problems
If the raft pad appears damaged, match the imperfection to the two scenarios below, and follow the corrective action suggested.
Note that there may be some imperfections in the raft, but that the process is very forgiving and even the images shown below will generally
not spoil a full print.
Track ripping
3D Touch
Page 41