[Saint Bob] would certainly encourage you to stick with it, but if you have not the patience, a CNC painting robot might be a thing to build. The idea behind [John Opsahl]’s “If Then Paint ...
A blank white wall just wouldn’t do, so rather than paint the wall himself, he designed a robot to do it for him. (Video, embedded below.) The result is Janksy. A huge machine made of metal ...