I have noticed my extruder motor stuttering when printing the raft. By stuttering I mean it is backing up momentarily and then forward again several times a second. I can hear it, and see the feed cog doing it. It only does it on the first layer of raft, and only in certain positions on the platform (mainly on Y positions towards the operator from center, and near the center in X). You can see that the first layer of raft is not uniform, being light or not present in this area where the stuttering occurs. The subsequent layers of raft are complete, and it does not happen during prints. It is really pretty strange, hard to understand why that would be done on purpose, and equally hard to propose why it would happen as a fault.
Anybody else seen this?
The platform is level.