![]() ![]() ![]() For convenience, set this aside for now.Attach the corresponding latch to the bottom of the Top Funnel and screw it in, so that it will keep the top closed snugly.Take a Touch Latch roller and using the Dremel, cut part of the metal off so that it can fit on the front left wall of the housing without interfering with the cylinder.Drill pilot holes using the Dremel, and then attach the hinges with screws.Using two hinges, align them in a way the top will be able to open.Line up the top funnel with the solid-bottom covering the Arduino compartment of the Housing.Using the cheap cutting board, cut two squares to fit on top of this funnel (this creates a slippery service for food to fall into the cylinder.Note that when looking at the housing from the left side, the cylinder will rotate clockwise, so face the lever switch accordingly. Once the cylinder is in, you can slide the lever switch into the slot of the inter housing so that when the cylinder rotates, the notch on the cap will activate the switch.Slide the fully assembled cylinder into the housing with the notch on the side of the arduino compartment.Attach Cap 2 to the other side, making sure that the protruding notch is in line with the opening of the cylinder.Attach Cap 1 to one side of the cylinder.The 4 digit 7 segment display should fit snugly into the front hole of the (I've done this project twice: this worked perfectly my first printing, but I needed to use a Dremel to widen out the hole the second time I printed).The zip file below contains all the parts necessary to 3D print this project. If you forget or miss it, that's okay too- they won't go hungry. So if you catch the timer before it goes off you can make your dog do a trick or two and feed them manually. I firmly believe for obedience training dogs should work for their food. The "feed-now" feature was designed for training in mind. If you have a Chihuahua or another small breed that requires 1/2 cup, you'll have to get another dog. The feeding times and number of increments are adjustable but the cup size is not. This project is designed to dispense dry kibble in one cup increments two times a day. This instructable was created in fulfillment of the project requirement of the Makecourse at the University of South Florida (The benefit of this design is that it will dispense exactly one cup each interval, making it superior over other auger or open-close freefall style feeders.
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