I've printed mostly ABS in the past and encountered delamination between layers many times. I've ensured the following conditions regularly:
- Build plate is level
- Base of print isn't warped (using ABS slurry)
- Prevent air draft. I've added acrylic panels to the sides of the machine and the machine is in a custom cupboard.
- Nozzle temperature at about 225C
- HBP temperature at about 112C (I live in NW USA, so the ambient temperature is typically fairly cool).
- Using MakerBot filament
What are some other variables to consider to help prevent delamination between layers?
I know some could not fit your question but maybe someone will look for all possibilities.
Delamination can be caused by:
- pressure (holdfast) - soft filament can be crumpled caused by extensive retraction)
- dirty jagger teeth (knurls)
- thermistor/wire failure - when it reports temp under ie 170C then extruder doesn't extrude
- caret floatage (extruder motor cannot pull filament so it climbs)
- printing speed
- temperature issue