Stop stressing on the cost per can. The size of the surface area you are painting; the square feet of it, is the first cost driver when you are planning to repaint.
Determining how many strips you need, rather than square footage, sounds complicated at first. But this method results in a more accurate estimate.
Abstract: A U-shaped linear ultrasonic motor using longitudinal vibration transducers with double feet was proposed in this paper. The proposed motor contains a horizontal transducer and two vertical ...