HE3D printer spacing after first three layers
I am hoping someone can help me figure this out. I have a HE3D 3 color, single extruder printer. I can not seem to figure out how to get it to print correct. After the first 3 layers, which lay down nicely, the z spacing is to larger and the print just becomes stringy and not solid. Any ideas and help would be awesome. My middle school students have been looking at the printer all year not able to print anything.