Saturday, February 25, 2012

Wooden Machine 3

 Wooden Machine 3
 Wooden Machine 3
 Wooden Machine 3
Wooden Machine 3 Bottom

This Machine improves on both my first and second wooden Machines.  In this Machine I used mostly steel connections and bushings.  The top wheel moves both the arm and paper.  The bottom mechanism stayed mostly the same but was improved by adding threaded rod and bushings.  The side to side action was improved also with the addition of steel to the mix.  This machine drew a image that looked like a rose window.  The only problem with this design was that there was no crank to turn the wheels and the belt was made out of rubber bands and stretched to much when it turned so the paper would change speeds.


The machine is created completely by me (Tim Morrison) without directions.

Wooden Machine 2

 Wooden Machine 2
 Wooden Machine 2
 Wooden Machine 2 Bottom

This Machine was the second iteration of my first Wooden Machine.  I kept the top action basically the same.  On the bottom side of the Machine I put another wheel that held another arm that had a rod and pin in it.  The rod and pin are in a slot that moves the rod as the wheel is turned.  This causes the rod to move in a slot that was cut into the base.  The rod is connected to the top pin and causes the top pin to move side to side.  This creates an oval like shape.  In this Machine I was also experimenting with the position of the pin on the top wheel.  When in the row of hols as pictured above, the pen draws a oval (Bottom picture).  When in the holes that are perpendicular to that row, the pen draws a kidney like shape. (Top Picuture


The machine is created completely by me (Tim Morrison) without directions.

Wooden Machine 1

 Wooden Machine 1
Wooden Machine 1
This is my first wooden Machine.  The goal I had for this machine was to make an Oval.  After I made the machine I found out that it made more of a balloon like shape.  This machine works by turning a wheel.  The wheel moves an arm.  The arm has a slot in it that a stationary pin is inserted into.  The arm also holds the pencil/pen.


The machine is created completely by me (Tim Morrison) without directions.

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.

Thursday, February 23, 2012

Vertical Lines

 First attempt at creating a machine to draw a vertical line.


 Second attempt at creating a machine to draw a vertical line.  Issues of precision and weakness of materials.



Third attempt at creating a machine to draw a vertical line.  Strength of machine is improved but vertical gears pull away from tower at last gear tooth.