How to Build the Best Automatic dog feeder DIYMotor https://www.amazon.com/gp/product/B07...Timer https://www.amazon.com/gp/product/B07...Drill Bit https://www.amazon.com/gp/product/B00...Power Supply https://www.amazon.com/gp/product/B07...Plywood https://www.amazon.com/gp/product/B00...