I was wondering if perhaps you could give me a suggestion on a mechanism. I
have been asked to design/machine a somewhat automated spray paint system. A conveyor would carry sheets of product (plate glass, polycarbonate sheets) and I would need to adapt an arm to traverse back and forth dispensing the liquid spray. I need to devise a simple means of reciprocal motion with a stroke of roughly 18" or so. I need to keep it somewhat simple, as it will be manned by individuals who might not have great technical experience. That rules out a CNC based design, or a PLC system. Oh, it also needs to be adjustable in it's speed......
Any ideas?