>>7591122I don't understand what you mean by straight line camo. Do you mean "hard edged", as in the borders between colours not appearing "blurry" or "feathered edge", or is the scheme made of stripes of straight lines?
If you want to avoid feathered edges while spraying, you need to mask or paint by hand (masking is usually easier and cleaner). Masking tape creates straight-lined hard edges (unless you cut it up or use curved tape), while hand-painting or using masking fluid can create irregular shapes with clean borders.
Model-specific masking tape is typically more suitable than DIY masking tape, because it's in smaller sizes and more importantly the sticky material is gentler and less likely to rip off paint.
Another thing to be aware of when masking is that you can work backwards as well as forwards.
Say you want to have white stripes on green background. You could just spray the whole model white, apply masking tape where you want your white stripes to be, and then spray green. You only need half the masking tape, you can be more precise about the width of each stripe, and you don't have to be as finicky about masking off parts that have already been painted with their final colour, which is important since you're using cans instead of an airbrush.
