Early threshing machines were hand-fed and horse-powered. They were small by today's standards and were about the size of an upright piano. Later machines were steam-powered, driven by a portable engine or traction engine. Isaiah Jennings, a skilled inventor, created a small thresher that doesn't harm the straw in the process.
Build your own mini thresher with a Thresher Deluxe Metal Model Kit. This amazingly detailed DIY model starts as 4" laser-cut square steel sheets and finishes as a beautiful 3D model. Use the easy to follow instructions to pop out the pieces, bend the tabs, and connect them at the attachment points.
Build your own collection of 3D laser-cut models, and create your own metal world!