I printed a pencil case, a pencil holder, some bookmarks, and some paper clips. I also printed a whistle so my teacher can get the attention of us noisy grade 7's.
Printed on my Cr-10 V2
https://drive.google.com/file/d/1mjZbe54uJWlYG32WIWMfpsaFBBf-Kong/view
I really enjoy 3d printing so I hope I can start a 3d printing club at school, but there are many strict COVID restrictions here in Toronto . (I probably can't just buy another printer either)

Hello Expee,
I think it might be of 3 reasons

1. the bed temperature might be too cool. For many filaments (excluding pla usually) you need a certain warmth level in order for it to stick to the bed.
2. The bed might be too low. The distance from the extruder could be too far from the bed so it's the extruder has moved on before the filament has reached the bed.
3. You might have bed adhesion issues. I do believe that the CR-10 Smart has the type of bed that's really sticky like my CR-10 V2, but you never know, it might have been damaged. The is probably not the issue, but you could try putting some glue (not the liquid kind) on the bed and it might help if it's the bed's issue.