I'm looking for a mechanical designer to help design and analyze a ball throwing device. The hand-held device should be able to throw a 2.5" diameter sphere (65mm) weighing 14oz (400g) a distance of 100 yards (100M). The length of the device should be approximately 24" long (600mm). I will need a CAD drawing for sending to vendors for pricing. The design will closely mimic a tennis ball thrower marketed for dogs. See Chuckit image attached.