It is sort of hard to see with the black but for the life of me I can't get my printer to make a cylinder with no void when it stops on the perimeter. I have a Da Vinci 1.0 and I am using Repetier with the luc firmware and Slic3r. I have tried tweaking every setting I can think of to no avail. I searched quite a bit but I could find anyone having this same issue. I am getting good prints, about .1mm variance on the diameter when running slow and .2mm to .3mm faster setting but they all have the same gap. I changed the starting point from aligned to random and that just made the whole part look like crap. No matter how slow I go it is still there. I tried having it push out more material when it stops and that just made a mess. Any help or insight you can offer is greatly appreciated.