Hi all, I do not seem to be able to get the filament to stick to the platform without using a raft. With a raft, the part prints fine. Without a raft, the extruded filament just "birdnests" at the nozzle because it is not sticking to the platform. My guess is the nozzle is not starting printing close enough to the platform, but again, it works fine when printing a raft. I have cleaned the platform with alcohol and it is quite clean. Thanks,