Saturday, February 25, 2012
LEGO Drawing Machine
Side View of Drawing Machine
Front View of Drawing Machine
Top View of Drawing Machine
This Machine was designed to draw in a circle as it moved forward. The machine is powered by a LEGO Power Functions M-Motor. The tracks are driven by a worm drive that is turning a 24 tooth gear. The Motor also powers a 40 tooth gear that turns a 24 tooth gear on a arm. This arm flips to the right when driving forward. This turns another 24 tooth gear that turns a large pulley on the same axle. The large pulley turns a small pulley with a belt. This small pulley turns another 40 tooth gear on the same axle. The 40 tooth gear then turns another 24 tooth gear, that turns a worm gear on the same axle. The worm gear then turns a turntable that holds the pencil/pen. When driving backward the arm flips to the left. This causes the 24 tooth gear on the arm to spin another 24 tooth gear that is on the same axle as the small pulley and the 40 tooth gear. This causes the worm drive to spin slower then when the machine drives forward.
When driving forward, the machine draws a series of half circles. (Pictured Below in Middle) When driving backward the machine draws a curved line. (Pictured Below on Bottom) Pictured Below on top is the drawing the machine makes when it draws in both directions with out stopping.
The machine is created completely by me (Tim Morrison) without directions.