When painting with a roller you get a good smooth surface, often even better quality than that made with a brush. However, if you need the same brush to hold the winding “tracks” with the aim of obtaining a decorative pattern. To achieve the same roller, its surface is enough to pull a cord and the picture painted surface will be more interesting.
Recommend to read
GROUNDING? IT IS IMPORTANT!
Reliable power supply and grounding are paramount to the operation of appliances, computers, local area networks, peripheral devices, connect the various cables (e.g., computer, printer,...
SKIN — BREAKING
To cut sandpaper with scissors should not be as abrasive material will quickly dull the tool. I suggest doing it with a knife. Need to put sandpaper abrasive layer down, and on its back...