Introduction: Altoids ROMP(Random Oscillating Magnetnetic Pendulum)

Picture of Altoids ROMP(Random Oscillating Magnetnetic Pendulum)

That's right, ALTOIDS. You can even smell it a bit! Everything is portable and can be fitted into a tiny package when you're done playing with yourself _. Then, after playing with the ROMP, you'll get a little toy that you can place in your pocket(well, if they are large enough, it's not THAT small). This is all made from household items and maybe a tool which you can borrow from your neighbor or something.

Step 1: Materials and Tool You Need.

Picture of Materials and Tool You Need.

Plenty of room for improvising. I used some tools just to make it a bit faster, since I don't want to spend too much time on this.

-Altoids Can/Base of sorts
-Broken Antenna. A dowel or something similar will do fine, although probably less portable
-Magnets. I used NeoDymium magnets from an old hard drive, they seem a bit TOO strong for this purpose, so I suggest weaker magnets for the base, and maybe, a strong one on the string.
-2 Paper Clips. I made the mistake of making them too long, therefor attracting the pendulum to the antenna. This is OPTIONAL, since hot gluing it will work fine, and probably better, although sacrificing portablility.
-Hot Glue sticks. For gluing the pole's base, use hot glue or somthing strong to hold it togethe.

-Drill. Power drill or hand dril is fine, although use something to make it drill straight, else it'll slide off. Basically, something to make a hole big enough for the antenna/pole to fit through.
-Hacksaw. A power saw is acceptable if your antenna is the strong kind(with layers inside of it so it's thicker), but a hacksaw is great for cheaper, thinner antennas.
-Hot Glue Gun. To attach holder for pole/antenna.
-Marker. Use it to estimate measurement, since there is no true need for a ruler here, you can estimate the lengths you need and it'll work out fine. You can just estimate using your hands too.
-Bench Grinder or File. Cutting the antenna WILL leave the sides roughed up, and you need to file/grind it down or else it'll cut you.

Step 2: Screwing in the Can

Picture of Screwing in the Can

As wrong as that title may sound, this is exactly what you're going to do. First, measure 1 line through the center of the can and somewhere conveinent on the side(preferably not where the cap fits into place, so the lower half).

After getting this marked, drill into the side of the can on both sides. Make sure it is centered a bit, because the long piece on antenna is going through here when you aren't using the ROMP. to see how big of a hole you need for this, compare the drill bit to the widest end of the antenna(the section we'll be using) and make sure the drill bit is a little bigger than it.

Then, you'll now have 2 holes in which you can place your antenna through.

Step 3: Preparing to Launch Colonel!

Picture of Preparing to Launch Colonel!

In this step, we'll be preparing the antenna to be raised. When doing this project, take note of any areas where you can make things more efficient and keep portablility, strength, and quality in mind.

In the whole scheme of things, you need 4 cut pieces of antenna. The overhang, pole, pole holder, and the pole base.

I'll explain how exactly this should work. The overhang is the piece that holds the pendulum and magnet over the can, in the center, so measure a piece out of the tip of the antenna and cut. If you end up with a bit more than needed, don't worry, you'll be tying the string and it won't come off too easily.

Pole. The longest part you will be using, a bit less than 6 inches is suitible. You might end up with 1 and a quarter of an antenna piece, that'll retract a bit. I'm using the thickest portion of the antenna because it needs to be strong and long.

Pole Holder. This is cut from the middle section of the antenna where it's slightly smaller than the large end, so it fits inside. the Pole will slip on over this tiny piece.

Pole base is made from the same section of the antenna as the holder, and is what connects the entire pole, holder, and overhang to the altoids can. Make sure it's glued tight, later on.

For measurements:
Overhang:2 inches
Pole: 5 3/4 inches
Holder: 7/8 inch
Base: 1/2 inch

In case you haven't figured it out, you use the hacksaw to cut the pieces.Might want to use a clamp to hold the antenna in place while cutting.

Step 4: Which Way Now?

Picture of Which Way Now?

Okay. This might be hard to explain and to understand. So you are presented with 2 choices when making this. You can either use hot glue and piece the pole and overhang and then glue the base and holder, OR you can use paper clips to hold the pieces in place, improving portablility although sacrificing strentgh. Also, paper clipping looks better than hot glue everywhere ;p.

For the hot glue way(easier btw), glue the base perpendicular to the side of the can(so the base is sticking outwith the hollow center facing away from the can). Then, you make a 90 degree angle with the pole holder. Make sure it's straight and secured.Facing directly upwards. For the Pole+Overhang, make another 90 degree angle with them, and glue the corner. Your result should allow the pole to slip onto the holder easily.

Paper Clip way. You bend the paper clips like shown in the picture, so it will slip into the pole and overhang with a little force, securing it because of the angle at which the paper clip was bent. For the second clip, you can straighten it out, and cut it in half if you'd like. You make a 90 degree angle with the base and holder with the paper clip as the core. with a tiny end sticking out from the base, bend it 90 degrees and hot glue it to the side of the can. Then, "fold" up the rest of the paper clip from the holder, into the holder and glue the corner that joins the base and holder.

For some reason, my glue turned out brown-ish so it's really ugly. And this step is completely open for improvement, because my way sucks =].

Step 5: We're Almost There Folks, Hang on Tight, Just Don't Piss Your Pants.

Picture of We're Almost There Folks, Hang on Tight, Just Don't Piss Your Pants.

Put everything together! Connect the pole onto the base and tie a piece of string onto the overhang, tie a magnet on the other end, and place magnets on the can.

You now should(emphasis on should) have a mini-ROMP now.

I was going to tie a little toy on the end with a magenet, but it was too big and heavy to work well. I did, however, manage to tie a noose just for my magnet(the hangman one) so it's easy to adjust it's position.

Set up your magnets onto the can now.

Step 6: *Claps* We're Done! Now See Horrible Credits!

Picture of *Claps* We're Done! Now See Horrible Credits!

I thank FrenchCrawler for bringing up the original instructable on making your own ROMP, and for helping me think of ideas.

What I DO NOT thank him for, is misspelling my name in his own altoids ROMP, bastard. xD

FrenchCrawler's version:

FrenchCrawler's original version:

Thanks to that company that makes the real ROMP. And I think I should thank you for reading my first instructable...

But I won't. Continue playing with yourselves and such and such.


Neodudeman (author)2006-09-10

Holy crap trebuche. You freakin read my mind. Like. seriously. stop.

trebuchet03 (author)Neodudeman2006-09-10

It's telepathy dude... 1.3 megapixel - so the pictures are a little fuzzy sometimes :P

Stormed (author)trebuchet032006-09-10

According to the camera, it's 4.0 MP. I used the macro setting and my hands aren't the steadiest so it blurred a bit. I am interested in the perpetual motion thing though.... Not sure about turning it into a pendulum though...

trebuchet03 (author)Stormed2006-09-10

oh no :P I was referring to my telepathy... A piss poor attempt at a joke :D As far as perpetual motion... its really not possible... even a perpetual motion pendulum is not infinite and it needs a power source to keep it going....

Stormed (author)trebuchet032006-09-10

lol, no wait, I got it now xD. Yeah I know it's not possible without power because of tiny distances that will slow it down over time. Still not sure about a pendulum though ;p. Well, at least not one like what I made, going in any direction, if it was one direction, I think it could work well but w/e.

ARVash (author)Stormed2006-11-02

yeah perpetual motion machines are impossible.. but really frickin long motion machines aren't :P. I'm sure you could trick a friend into thinking it were if you got it going long enough.

a480641 (author)ARVash2012-04-02

well im not sure if its perpetual or not but there is a giant foucalt pendulum in the indiana state museum that if i remember correctly turns it's trajectory with the earths rotation

Stormed (author)2006-09-10

Comments and questions from literate people only. _

Cubie2 (author)Stormed2009-09-11

Yeah no kidding. But good job I think I might make one.

Ora (author)Stormed2008-06-04

Seems like you filtered out pretty much everyone with that statement.

Cryptonat (author)Ora2008-11-18

I do concur.

hexmuj3 (author)2008-02-05

cheeeeeeeessssssss! =P

bedbugg2 (author)2007-10-25

who doesnt like magnets!

bam151515 (author)2007-06-19

i feel stupid

manmelvin (author)2007-03-26

what in the world is a romp ???? is it like a pendulum thinggy

lemonie (author)2007-01-01

(Being pedantic) Neodynium - (it's not a brand name or registed trade-mark)

cowanbm (author)2006-09-18

Anybody interested in making a "perpetual motion" version of this should read the "Omni Pendulum" article in the Aril 2006 issue of Everyday Practical Electronics.

Jack Daniels (author)2006-09-10

wow these are popular.

trebuchet03 (author)Jack Daniels2006-09-10

yeah really.... now if someone would make a perpetual magnetic pendulum - but that's going to require some electronics skills :P

Ian01 (author)trebuchet032006-09-16


bluerover (author)2006-09-15

Maybe I'll spell check before I post next time

bluerover (author)2006-09-15

I just "knock one up" from a 12V muffin fan and an old project box. Hot glued the fan in the box after trimming down the blades. Hot glued two magnets on he fan and used a aluminium tube 1/16 dia for the post and 1/32 ABS rod for the pendulum. With a piece of ferrite magnet taped to the end. Powered from a signal generator with a triangular wave at .03 hz it swings with a wonderful lively pattern. Since this was all items from my desk it might qualify as an Office toy too.

FrenchCrawler (author)2006-09-10

Sorry bout the misspelled name, I've fixed it now. Your version scares me. Good job, but scary looking. The magnets could use some filing down and you may want to figure out a way to make it a bit more compact (maybe a smaller antenna?).

Stormed (author)FrenchCrawler2006-09-10

lol yeah. I wanted to have a strong structure so I used a longer antenna. And yes, those are scary magnets. Results from multiple Neodymium magnets snapping together and breaking up into odd and sharp looking shapes, but don't worry, they're safe ;p. I looked around the internet and, if you try using sphere magnets, the results might be more enjoyable _. Probably would do well on the inside of the can so the magnets won't roll over.

These were the only magnets I could find so that's what I used. After seeing how much time it took me to write up the steps, don't expect too much stuff from me xD. I just found my old speaker magnets, so might use those(but these are actually danerously sharp).

abend (author)Stormed2006-09-13

You can get little rare earth magnets out of the laser focusing subassembly of CD-ROM drives. They usually use a pair of small (but strong) magnets and a pair of coils to position the lens. Granted, you'll need to tear up 5 drives to get the 10 magnets that your photos show.

Stormed (author)abend2006-09-13

Of course, just being normal hard drive magnets it's also pretty small. Since I played with them for months, the magnets broke up into 11 pieces. 1 went missing, the rest stuck, and I have too much magnetic dust in my room to be healthy!

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