Now when Bobby Shaftoe had gone through high school, he’d been slotted into a vocational track and ended up taking a lot of shop classes. A certain amount of his time was therefore, naturally, devoted to sawing large pieces of wood or metal into smaller pieces. Numerous saws were available in the shop for that purpose, some better than others. A sawing job that would be just ridiculously hard and lengthy using a hand saw would be accomplished with a power saw. Likewise, certain cuts and materials would cause the smaller power saws to overheat or seize up altogether and therefore called for larger power saws. But even with the biggest power saw in the shop, Bobby Shaftoe always got the sense that he was imposing some kind of stress on the machine. It would slow down when the blade contacted the material, it would vibrate, it would heat up, and if you pushed the material through too fast it would threaten to jam.
But then one summer he worked in a mill where they had a bandsaw.