Agility Course For Dogs Diy . Join the 2 open ends of the u shaped frame to the open ends of the elbow joints on the first piece you created. Unleash them in the area of the course and allow them to sniff around and familiarize themselves with the equipment. Breezy on my Homemade Dog Agility Course YouTube from www.youtube.com This jump bar helps fido build up his hindquarters and develop a better sense of boundaries. Jump bars photo by wendell t. Pvc pipes are your key to a great diy dog agility course.