re: Motorized Bicycle Take a Tip...Leave a Tip
Stay outta dark alleys and don't take any wooden nickels... seiously, on my current build, a Grubee 4S, I wanted the motor mount flnges to fit properly and tried a fine rotary file chucked up in a hand drill. Worked like a charm on the soft metal. Unlike Dremel attachments, the Vermont-American Brand tool is long enough to contact the entire depth of the flanges. Available at Home stores or better hardware stores.