As usual nothing is as easy as I thought it would be. The trailer tongue is too short for the bike I want to use it with. I built the trailer for a bike with a 20" wheel. The bike I wanted to test it with has a 26" wheel.
I thought about swapping the wheels, I do have two extra 20" coaster wheels. then I thought I would just put a new tongue on the trailer. I have some conduit I haven't used for anything. But then I thought as I was eating a peanut butter sandwich, I'll just add a six inch bar going from the axle straight back. I can hook the trailer to that. So I did.
I rode it two miles empty and it pulls perfectly no swing at all even wide open. Which isn't very fast on that bike.
How does your dog like riding with you. neither of mine would sit still for it.