Hogwart's Express - A Baby Bandsaw Build   'A scarlet steam engine was waiting next to a platform packed with people. A sign overhead said Hogwarts Express, 11 o'clock.  Harry looked behind him and saw a wrought-iron archway where the ticket box had been, with the words Platform Nine and Three-Quarters on it. He had done it'    So wrote J.K. Rowling in chapter six of her 1997 novel Harry Potter and the Philosopher's Stone - the first in a series of novels that some of you may