Is my printer good for printing big things?

When I print this new design, (120mm x 140mm) It always comes out weird and lots of random filament everywhere. When I print it smaller though it turns out fine. I looked into the infill and it looks like when i print it that big it drifts. Can anyone help?

Are you running your filament with a dryer? Wet filament causes most stringing. As for drift I think it might be something to do with how straight the Z screws are, I have an issue with tall things on my KE that I need to nail down. Anyway filament dryer, top of the list.