Cat and Mouse Automata
THIS IS HOW TO MAKE A CAT AND MOUSE AUTOMATAAAAAAAAAAAAYYYEEE
Gather Materials
Materials and Tools Needed:
1. Plywood (.5" thick, 2x2)
2. Wood Glue
3. A drill (with drill bits)
4. A clamp
5. Laser Cutter (optional)
6. .5" wooden dowel 1 yard long
7. .3" wooden dowel 1 yard long
8. One paperclip (for mouse)
9. 3" of fishing line ( or any sturdy clear string)
10. 4 .25" wide Screws
11. Wood (1" thick 10x10)
Downloads
Cut Sides
Measurements:
Cut 2 5x12" rectangles
Cut 3 5x5" squares
Glue Sides, Make Supports
Drill a .5" hole into the middle two of the squares
Using wood glue, glue two squares (one with a hole and one without) to either end of one of the rectangles on the inside (inside meaning the bottom of the square is attached to the rectangle, not to the side of the rectangle)
Cut 4 1x.75x.75" cube from the 1" wood
Glue 2 of them on the inside of each side of the box for support
Inside Square and Supports
Cut 2 5x.75x.75" cube from the 1" wood (support)
Glue the final square with the hole 7.5" away from one of the ends
Glue the supports to both side of the square
Cutting Your Cams, Gears, and Circles
Cut 2 3.5" drop cams from the plywood, glue them together and drill a .26" hole into roughly the middle of it
Cut 2 3.5" oval cams from the plywood, glue them together and drill a .26" hole into roughly the middle of it
Cut 4 2" circles from the plywood and glue them together in sets of 2 and drill a .35" hole into each of them
Cut 2 3" gears (12 teeth) from the plywood and drill a .5" hole into them
Preparing More Parts
Cut a 4.25" circle from the plywood drill a .24" hole
Cut and whittle a rough mouse shape using the 1" wood, cut .5" whiskers and attach them, then cut the paper clip into a 1.25" long wire and attach it to the mouse for a tail
Make the cat:
1. Cut out a rough cat shape with no appendages
2. Cut out the leg and glue them to the side of the cat
3. Cut out the tail 6" long attach by drilling a hole and using a screw to attack it to the body making sure it is loose enough to go up and down
4. Cut out a 5.5" long arm for the cat and attach the same way as above
Assembling the Cams and Gears
Cut the .5" wooden dowel so it is 10" long
Thread it through the side with the bigger space, slide the cams on, separate them
There should be a little room for you to put one of the gear on the end of the dowel on the other side of the middle square
The 90 Degree Gear:
1. Cut a 1.5x1.5" block from the 1" wood, drill a .7" hole into it
2. Cut the .5" wooden dowel so it is 5.5" long
3. Glue the block so it is touching the support of the middle square on the side without the dowel
4. Insert the dowel and add the gear so it is touching the other gear at a 90 degree angle
The Top: Mouse
Glue the top on
Drill a hole so that the dowel is visible
Take the big circle and line up the holes
Put the screw in so it connects the circle to the spinning gear
Glue the mouse somewhere on the circle
The Top: the Cat
Glue the cat so that it's head is .5" away from the circle
Cams:
Drill a .5" hole beneath the cat's arm and tail, make sure it lines up with the cams underneath
Cut 2 2.5" long pieces from the .3" dowel and glue them to the middle of the circles
slide the circle thing's dowel through the hole and let the circle rest on the cam
When you turn the dowel, it should rotate the cams and push up the arm and the tail
WHAT IT SHOULD LOOK LIKE
Here are some videos...