This is the model i’m having trouble with (top part): http://i.imgur.com/nhVMh1X.jpg
Using cycles and have 2 light sources in the scene.
How doth I do for removal of thee stripes on the model?
(sorry if I formatted this weirdly, i’m both new to blender and this forum so go easy on me
Are you using a subsurf modifier and your model has triangles or ngons ? If so you will get artifacting if the triangles / ngons are not on a planar surface. Adjust your geometry to be made of quads that follow the surface shape of the object