file not printing correctly

[wolframite 0]

hey guys

 

so for a school projet i had to modify a drone then print it,i designed the file no problem but when i went to print i noticed that holes appeared on either side of the piece even though they shouldnt be there and don't appear in the normal view.

 

 is there any way to solve this problem ?

 

thanks in advance

[kmanstudios 1,120]

Without seeing the other side or the program used to generate/modify, I would venture a guess that the walls are too thin at those areas. In Cura 3X, there is a "Print thin Walls" option to check. Have you tried that? Also, a good rule of thumb is make sure your walls are twice as thick as the nozzle diameter.