homemade lure coursing machine

budget friendly lure coursing machine 12v Rechargeable battery: https://www.amazon.com/dp/B003S1RQ2S/... Battery maintainer: https://www.amazon.com/dp/B000CITK8S/... 12v Motor: https://www.amazon.com/dp/B0006N6UF0/... Speed Controller: https://www.amazon.com/dp/B081NJ12M3/... String: https://www.amazon.com/dp/B082W5JBC5/...