I purchased the carver for my woodworking classes and have spent more time fixing problems than using it. There are less than 16 hours on the tool and I have replaced the motor and track belts. Now tests tell me that I need a new sensor. I need help because I don't have money in my budget for a new sensor. When I spoke to a salesmen at the MITES convention in Michigan all he had to say was that he agreed the first carvers were real lemons but did not offer any help. Should I unload it and move on? All suggestions are appreciated.