I printed a simple cup (a K Cup) and it came out with a lot of bumps inside and outside. It is also very rough so the top will not go on. A couple of test prints came out perfectly and a couple of parts I designed for my truck, but this cup came out so badly it has to go to the trash. How do I solve this problem?
Hey @ScottInTexas
Welcome to the Creality Forum…! 
Glad you could join us…
If you could send a pic of that cup or the first layers we could get a better idea of what’s going on…
If you used a different filament for the cup it might need to be dried out…