Weird Bumbs/Zits On All Prints

[JaySkrab]

I am brand new to 3D printing and my first 3d printer is the Tevo Nereus. Once it was all set up I used repetier host to print and cura engine to slice. Ever print has lots of bumps on the outside walls. I tried slicing with cura engine and saving the file to a micro sd to print from the printer and there were instantly no bumps. Does anyone know how I could fix this because I would rather use the program on the computer.