i seem to be squashing my prints but only on small prints i have no problem with bigger prints , I've tried printing marvin twice now in PLA
1st 190 extruder bed at 50 and 50 mm/sec using simplify 3d, 2nd using replicator g at same setting both have done this see video
https://www.youtube.com/watch?v=eU3eIQ8OVGA

any ideas , too much heat ? over extrusion ?