Need a band saw but only have a drill kicking around? That may not be a common problem but if you ever run into it, [Izzy] has got you covered. He’s on a mission to make a drill-powered workshop and in his YouTube video, he shows a small bench top band saw he made that is powered by a corded hand drill.
The main frame is made from doubled up 3/4″ plywood. The saw blade is strung between two wooden wheels. Those wheels have tape applied to their outer diameter to create a crowned roller. That crown keeps the saw blade tracking in the middle of the wheel. The bottom wheel is mounted to an axle that is supported by bearings in the main frame. That axle pokes out the back and is connected to the drill. The top wheel has integrated bearings and ride on a stud mounted to the frame. The blade seems to be pretty tight although there is no noticeable tensioning system.
The video shows that this DIY band saw can cut through 1.5 inch wood fairly easily. Even so, there are clearly some needed features, like guide bearings for the blade and an overall cover to prevent accidental lacerations. But we suppose, even professional saws can be dangerous if not treated with respect.