Cat-Powered Automatic Cat Feeder
Intro: Cat-Powered Automatic Cat Feeder
Problem: Yoshi was gorging himself on cat food from his gravity-powered feeder, gaining a lot of weight even on weight-loss formula food, and even vomiting from overconsumption (yeuagh).
Solution: An automatic feeder that takes 5 minutes to make, and requires no soldering, no motors, and no batteries. Your cat's own clever paws knock just a few pellets out at a time, so this dispenser is self-regulating according to a simple algorithm: while your cat's hunger exceeds his laziness, he shakes the feeder, eats the pellets, repeats.
In addition to pulling the feeder by the lip of its base, Yoshi has also learned to lift and drop the feeder, pull it forward and drop it back, and even knock it on its side and then lift it upright again if nothing else works. He almost always gets a few pellets out each time, and can even run through a nearly full 8 oz cup in a day if he's really hungry. The idea isn't to deny your cat food -- just to slow him down so he notices that he's full.
Solution: An automatic feeder that takes 5 minutes to make, and requires no soldering, no motors, and no batteries. Your cat's own clever paws knock just a few pellets out at a time, so this dispenser is self-regulating according to a simple algorithm: while your cat's hunger exceeds his laziness, he shakes the feeder, eats the pellets, repeats.
In addition to pulling the feeder by the lip of its base, Yoshi has also learned to lift and drop the feeder, pull it forward and drop it back, and even knock it on its side and then lift it upright again if nothing else works. He almost always gets a few pellets out each time, and can even run through a nearly full 8 oz cup in a day if he's really hungry. The idea isn't to deny your cat food -- just to slow him down so he notices that he's full.
STEP 1: Eat at Baja Fresh
Yes, eating at Baja Fresh is the first step. I like their grilled vegetarian burrito.
Well, okay, you don't *have* to eat at Baja Fresh. Anyway, their grilled vegetarian burrito does not come in an 8oz tub, so you'll have to buy their salsa or guacamole if you want this particular part. You'll probably find that your local deli sells cream cheese or chopped liver in a tub like this, and they probably have better matzo ball soup than Baja Fresh, too.
The key thing is that you find a tub that has a flat lip along the top edge, and fits into the top of your cat food dispenser, resting on that lip, so that the lid of the dispenser will close over it.
You'll also need a cat food dispenser with a circular, flexible pop top that snaps down over the tub from Baja or your deli. This sounds like a bit of a chicken-and-egg problem, but I got it right on my first try, so hopefully you will too.
Finally, you'll need some cat food, and a pair of scissors. Without these, any attempts your cat may make to obtain food from your Yoshimatic Cat Feeder will be frustrated.
Well, okay, you don't *have* to eat at Baja Fresh. Anyway, their grilled vegetarian burrito does not come in an 8oz tub, so you'll have to buy their salsa or guacamole if you want this particular part. You'll probably find that your local deli sells cream cheese or chopped liver in a tub like this, and they probably have better matzo ball soup than Baja Fresh, too.
The key thing is that you find a tub that has a flat lip along the top edge, and fits into the top of your cat food dispenser, resting on that lip, so that the lid of the dispenser will close over it.
You'll also need a cat food dispenser with a circular, flexible pop top that snaps down over the tub from Baja or your deli. This sounds like a bit of a chicken-and-egg problem, but I got it right on my first try, so hopefully you will too.
Finally, you'll need some cat food, and a pair of scissors. Without these, any attempts your cat may make to obtain food from your Yoshimatic Cat Feeder will be frustrated.
STEP 2: Snip, Snip! Create Magical Food-Dispensing Baffles
Since this is a cat food dispenser, our measurements will be in units approved by the council of feline chefs: food pellets.
Here's where the scissors come in; snip the bottom of the tub at the corner, to create a slit. Make a second cut about two pellets' length away from the first one.
Next, insert the point of the scissors and expand each slit until it's about four times as long as your cat food pellets. About half of each slit should be above the bottom corner (on the side of the tub), and about half below it (on the bottom of the tub). Try to make each slit straight across the corner (perpendicular to the bottom of the tub), but if they're off by ten or fifteen degrees, don't sweat it.
Push in the middle part with your finger to make a loop, then crease the plastic by pinching it upwards to keep it from popping back into its original position.
Here's where the scissors come in; snip the bottom of the tub at the corner, to create a slit. Make a second cut about two pellets' length away from the first one.
Next, insert the point of the scissors and expand each slit until it's about four times as long as your cat food pellets. About half of each slit should be above the bottom corner (on the side of the tub), and about half below it (on the bottom of the tub). Try to make each slit straight across the corner (perpendicular to the bottom of the tub), but if they're off by ten or fifteen degrees, don't sweat it.
Push in the middle part with your finger to make a loop, then crease the plastic by pinching it upwards to keep it from popping back into its original position.
STEP 3: Make Two More Baffles
Really, you can make as many of these loops (baffles) as you like, but we've found that three is about right; cut two more, push them in, and pinch them open.
You're all done making the dispenser now -- just pop the tub into the feeder.
Now it's time to get your cat interested.
You're all done making the dispenser now -- just pop the tub into the feeder.
Now it's time to get your cat interested.
STEP 4: It Even Trains Your Cat
More than likely, your level of interest in this dispenser directly corresponds with that of your cat for food, so it'll probably be very easy to train your cat to use it. Here's what I did:
1. Fill the tub at the top of your feeder, but don't pack it to the top, or the pellets will be wedged in place. They need to be loose enough to easily spill through the baffles when your cat bumps the feeder.
2. Put some pellets of food in the back of the feeder's base, so your cat will have to reach up inside with his paw to get them. During one of these food-reaching endeavors, the feeder will probably get bumped and a learning event will occur.
3. If your cat doesn't seem to be getting it, try bumping the feeder yourself to show how it's done.
4. Make sure your cat's getting enough to eat by opening the lid and checking the food level. Put a limited amount of food into the base of the feeder each day -- just make sure your cat will run out at some point during the day, so that he'll have a reason to try to get the pellets in the tub.
5. Let nature take its course! Your cat will take a few weeks to get good at manipulating the feeder to drop pellets. Yoshi gets a refill once a day, whether he needs it or not, and we still put a few pellets into the base, just to give him the satisfaction of knowing he's been fed.
1. Fill the tub at the top of your feeder, but don't pack it to the top, or the pellets will be wedged in place. They need to be loose enough to easily spill through the baffles when your cat bumps the feeder.
2. Put some pellets of food in the back of the feeder's base, so your cat will have to reach up inside with his paw to get them. During one of these food-reaching endeavors, the feeder will probably get bumped and a learning event will occur.
3. If your cat doesn't seem to be getting it, try bumping the feeder yourself to show how it's done.
4. Make sure your cat's getting enough to eat by opening the lid and checking the food level. Put a limited amount of food into the base of the feeder each day -- just make sure your cat will run out at some point during the day, so that he'll have a reason to try to get the pellets in the tub.
5. Let nature take its course! Your cat will take a few weeks to get good at manipulating the feeder to drop pellets. Yoshi gets a refill once a day, whether he needs it or not, and we still put a few pellets into the base, just to give him the satisfaction of knowing he's been fed.
71 Comments
andyoaryoga 11 years ago
what could attract a cat to push the board?
graykit 5 years ago
MikeV84 7 years ago
Your machine does not appear to feed on cats at all. Very let down. BOOOOOO!
moeafton 8 years ago
looks good where did you buy the dispenser? what brand
can't find that style in canada
andyoaryoga 11 years ago
i'm just wanted to know does the cat able to press the board.
thanks it's for my 2nd design project class
:D
snuzzle 12 years ago
Foaly7 13 years ago
Ann1 14 years ago
That was fast and very easy to make so now my little friend has a new toy :-)
broken_to_fix 14 years ago
klee27x 15 years ago
http://www.metacafe.com/watch/1835133/pavlovs_cat_automatic_catfeeder/
labelreader 15 years ago
robotguy_pdx 14 years ago
I'm thinking about something like this for my kitty, Doozi - she already opens cupboards and drawers and is very persistent until she gets what she wants. Oh yes, she also turns my living room and kitchen lights on and off if she thinks I am ignoring her - she can jump up and toggle the light switches.
Doozi is also not shy about letting me know when she needs more fresh food.
Colonel88 14 years ago
labelreader 14 years ago
littleangels 15 years ago
royblumenthal 14 years ago
@littleangels... easy way to add exercise to the mix is to remove the lip from the base feeder. So when the pellets drop out, they roll out of the dispenser, and onto the floor (or whatever surface it's on).
The cat will scurry to catch the two or three pellets that pop off in various directions.
Blue skies
Roy
randofo 15 years ago
aseaheru 14 years ago
spiffytessa 15 years ago
omnibot 15 years ago