A wise man once said, give a kid a peanut butter and jelly sandwich and she'll eat for a day...but give that kid a crazy, motorized, conveyor-belted contraption that makes peanut butter and jelly sandwiches and that day will be a lot more fun! (And yes, that wise man was me.)
Step 1: Self-analysis
Step 2: Get Various 110v AC Motors
Very important: Make sure that you get motors that go in reverse as well!
(The reason for the AC motors and not DC is because AC is easier in the end, but hey, if you got a bunch-o-DC motors, go to town -- I'm not gonna
stop the creativity on your part.)
Step 3: Make Conveyor Belt
I also used four 7" paint rollers for the "wheels" and some 1/8" thick aluminum on the sides screwed to a piece of wood to hold them together. Attach one of the 20 or 40rpm motors to one of the outside edges. The whole conveyor belt system should be about 22" long.
Step 4: Make Peanut Butter Squisher
Next I built a tower out of 3/4" square tubular steel and welded it together like this.
I got my roller mechanism from the paper section of an arts and crafts store; it's called a "pasta machine." I had to modify it a bit but ultimately I made it so the rollers can spread apart from each other and be pulled back by a spring. I used a threaded rod and a nut that create the up-and-down motion. 40 rpm reversible motor for this one.
Step 5: Make Jelly Squeezer
Step 6: Assemble Mechanisms, Expand Vocabulary
Attach some wheels to the bottom of it and make a track that it can slide back and forth on, so that you can give your sandwich that extra bit of flair that no sandwich should be without...layering! (Besides, if youskip this step then all your jelly and peanut butter will end up in the middle, creating a poorly-made sandwich for others to mock, ultimately lowering your self esteem!)
Step 7: Decorate, Wire, Pontificate
"stink eye" and say, Whaaaaat?
Then explain to them that as a child, you realized that life isn't thathard but you have figured out a way to complicate even the most simplest of processes and will continue to make pointless-but-meaningful contraptions as an expression of your innermost feelings, or lack thereof, for meatloaf! (The food, not the singer!)
This has been another awesome invention from your favorite long-haired Techno-Guru, Brian. To check out more of my DIY projects, go to http://2pointhome.com