Robot maker Motoman Inc. has cleared a hurdle toward moving its headquarters to the Austin Road interchange.The cities of West Carrollton and Miamisburg have reached an informal revenue sharing agreement in the event that Motoman decides to leave West Carrollton for the Austin Road site, which falls in Miamisburg.Officials said the agreement could to be formalized and approved by both cities by the end of the month.As part of the deal, Miamisburg will reimburse West Carrollton for five years after the move based on the amount of taxes collected during this year. West Carrollton would collect 50 percent the first year and then 10 percent less, per year, during the rest of the term.Bill Covell, director of economic development for West Carrollton, said the deal should net West Carrollton about $345,000 for the life of the agreement.Getting an agreement was necessary because the Dayton-Montgomery County Port Authority needed West Carrollton’s blessing before it could finance the new Motoman site, which was a sticking point because it involved the move of a company within the county. The move will be a blow to West Carrollton since Motoman is one of the city’s largest employers.West Carrollton also has asked Motoman to fund an economic development study that would cost about $100,000.Tom Schockman, vice president of finance and chief financial officer for Motoman, declined to answer questions about when Motoman will answer West Carrollton’s request. In March, Schockman said the company whittled its consolidation plans to two potential new locations, but declined to comment further.A new Motoman facility is expected to be about 300,000 square feet and cost $17 million to $18 million. It will consolidate as many as 275 workers into the new site, including about 75 in Troy and 200 in West Carrollton.