how to make a coin-battery charger?

to be more specified a coin battery is the one like on computer motherboard

Asked by DELETED_messam 6 years ago


Coin Tumblers?

Anyone ever made a home made coin tumbler? Store bought tumblers are pricey, would like to be able to wash/clean all my old coin finds that I get when metal detecting.

Posted by welkopole 6 years ago



Do you know how to make a coin ring?

Do you know how to make a coin ring like in this photo you can detaisl ot dzr@ntlworld.com if you prefer

Posted by deonzronin 5 years ago



What coin is this?? Answered

I found this coin while looking through my collection, but i dont know how old it is or what type of currency it was used as, -its middle eastern. -Its written in hebrew -I think its made of bronze

Asked by monsterlego 5 years ago


British law on defacing coins? Answered

I wanted to drill through a 10p to make a ring like the ones on this website. BUT I NEED TO KNOW THE BRITISH LAW Lots of people are saying its illegal and stuff.  

Asked by The Science Guy 6 years ago


Coin Collectors

Hey guys, I was just wondering if anyone here collected coins. My brother, and my dad, and I all collect coins as a side hobby. What coins do you collect? What types do you have, and the oldest ones? I have many books for nickels, dimes, and pennies. I just love the feeling when I can open up the book and find it full! My brother and I just bought some old Indian Head pennies, as well as some Steel Pennies from 1943. (During WWII) I have many foregin coins, as well as about 20 Susan B. Anthony's. I have about 10 Sacajawea coins, and a few Kennedy Half-Dollars. I just love the feeling of the profit that will be made in the future. Today I collected about 6 brand new 2007 Pennies, and took them out of circulation. Share your tips, tricks, and cool places to find your coins! As well as your coin collections!

Posted by Brennn10 10 years ago


COINPUSHER MOTOR SPEED " TO FAST " Answered

I'M BUILDING A COINPUSHER WITH A 12 VOLT SYSTEM AND I'M HAVING TROUBLE WITH THE MOTOR SPEED I'VE TRIED A REHOSTAT AND IT SMOKED WHEN I HOOKED IT TO THE BATTERY AND ADJUSTED THE SPEED WITH IT ... THE MOTOR IS A BLOWER MOTOR FOR THE A/C SYSTEM OF A CAR .. ANY HELP WOULD BE USEFUL !!! PUT "MOTOR" IN SUBJECT IF YOU RESPOND LASNIPER@MSN.COM

Asked by SNIPER,LA 7 years ago


From Coin Slot to Coin Segregation to Coin Dispensing, Help?

Hey Guys... don't know if I posted with the right category, so i'm open to corrections. ... Need advice in the process from Coin Slot to Coin Segregation to Coin Dispensing, especially Coin Segregation and Coin Dispensing. ... From insertion of coin, Coin Segregation will take place, which will then put individual coins to separate casings. ... and from there Coin Dispensing should be available for each casing. The logic for dispensing would be "1 click to 1 coin dispensed" . ... already have an idea on separating each coin from one another upon insertion in coin slot and then to coin casings. ... the problem would be is on the Coin Dispensing, need help and ideas. Thanks if replied/answered.

Asked by Gedon 5 years ago


Hollow Coins? Answered

Does anyone know how to go about hollowing out a coin to conceal a MicroSD card or USB storage device? Like this one: http://makersmarket.com/products/micronickel-hollow-spy-coin What is the bare minimum toolset that I would need?

Asked by mittenhands 7 years ago


Anyone know what Country this coin is from? or how much it could be worth?

I found this coin at the bottom of an old jar and was wondering where it might be from? Or possible resale value.

Asked by CrawdadMan 8 years ago


How do they do the 4 coin matrix magic trick?

I have watch a vid showing a soin trick called 4 coin matrix magic trick. ive been wondering how do they do that trick?

Asked by dvaughn 9 years ago


Who here enjoys coin collecting?

Ive just started collecting coins and Im looking for some tips on cool ways to invest my money, in money.  Thats still such a neat idea to me.  Id love to hear some ideas, so give me a shout.

Posted by SpaceProds 6 years ago


value of my coin? Answered

Hi i have a 1941 walking liberty half dollar. I have been trying to figure out how much its worth for years. I found it with my metal detector so it has some wear on it.

Asked by joelr97 6 years ago



I want to make a scale with the circular guage and the little red pointer that spins how might this be accomplished?

I want to make a strength machine and need a circular guage for it so i want to make a pull scale with the red pointer thing up to 40 lbs

Asked by undftdking 7 years ago


What's in your money collection?

I want to know what is in your money collection. Here is what in mine. I had just started getting serious about it though. Tell me what you think.Paper Money=- 5 Yuan from China- 5 Dollars from Cayman Islands- 5 Dollars from Canada- 2 Dollars from Canada- 1000 Dollar bill from 1922 from Germany. I got it for a dollar at a local coin store.- 1 1935 blue seal dollar billCoins=Pennies- A bunch of pennies from 1979 and earlier just because they're old. A 1979, a 1978, a 1977, a 1976, a 1975, a 1974, a 1973 with a 7 stamped into it, a 1972, a 1970, a 1969, a 1967, a 1975, 1964, a 1961, a 1960.- 10 Wheat pennies, 3 1943 steel pennies all in very good condition, a 1952, a 1941, a 1950, a 1919, a 1925, a 1910, and a 1929.- a few souviner pennies. A Hulk, a Trump Plaza, a Hershey Park, and a Jungle Cruise.- A 1952 wheat penny PROOF.- 3 indian head pennies. They are all in a suprisingly (wowful) condition. A 1903, an 1888, and a 1899.Nickels- 4 old nickels, a 1946 (So close to being a war nickel) a 1969, and a 1985 (I know, you find alot of those), and an uncirculated 1964.- A bunch of different nickels from a series: 5 of the nickels with the boat on the back (2004), 2 of the nickels with the Shaking hands and crossing axes on the back (2004), 5 Indian Head/Bison nickels (2005), 2 Indian Head/Ocean view nickels (2005), and 3 jefferson head nickels with the original back (2006). Dimes2 mercury dimes. 1 from 1923, in poor condition, and a 1941 in a fine or very fine condition.Quarters- 1 Bicentennial- 2 silver quarters, one from 1953, and one from 1941.Dollars- 11 Sacajewaea dollars.- 5 Susan B. Anthony- 1 Morgan Dollar- 2 Eisenhower dollars. One is 1972, and the other is a 1976 - 1 1961 Franklin dollar, in UNCIRCULATED condition!Bicentenial.Half Dollars- 3 original half dollars, a 1971, a 1972, and a 1973 Commemoratives- 1 2006 5th anniversery of 911 with gold, and parts of ground zero.Foreign- 25 cents from Bermuda- 3 25 cents from Cayman Islands- 1 5 cents from Cayman Islands- 2 1 dollars from Jamaica- 1 20 dollars from Jamaica- 1 1 Franc from France- 1 Unknown amount from an Unknown Country.- 1 50 Pfennigs from Germany.- 17 1 cents from Canada.- 1 1 cent from The Republic of Trinidad and Tobago.- 1 1 cent from BermudaPlease note I have not been to all of these countries.Other=- 1 Roooofus the Roller Roo token. (I don't know where I got it).- 1 1972 proof set with a penny, a nickel, a dime, a quarter, and a half dollar. - 1 Showboat Token. Worth 1 dollar- 1 carwash token9/6/06 Edit: As some of you might see, I had updated a few. There are lots more that either my dad gave me, or I bought from the coin store.

Posted by Flumpkins 9 years ago


Designing a micro GPS tracking device

Hello all, could anyone give me some insight to how complex the process of designing a very small GPS tracker which could be used to track lets say a person, which can post its co-ords to map software which is custom programmed etc in realtime. Hypothetical scenario: 1) Tracking someone who is on the move outdoors, only has very small pockets to fit the thing in.  2) The device must send co-ords to mapping software on a computer every 10 seconds maybe. 3) Someone can view there position on the map software in instantly to understand their exact position. Also how expensive would the whole process cost to manufacturer roughly? Thanks in advance and sorry for the vagueness in my question

Posted by tullybear 5 years ago


i have a coin i found what is it? Answered

This is a very strange coin what is it HELP.

Asked by hellmaster993 5 years ago


old coins

Anyone have any old coins sitting around(or collections) pre 1950 foreign and us? looking to buy.

Posted by drewscollectibles 3 years ago



Habbo coins

Leave the User Password habbo habbo and quantity of coins example: User: ful54 Password: gash15 Quantity: 1500 (detail must be habbo.com.br)

Asked by felipe320 8 years ago


Coin Press Want to Make

Do any of you have plans or the know-how to build a homemade coin press that can stamp 1 1/2" aluminum coin blanks?  Any help is appreciated.

Asked by Clymer 8 years ago


How to make a super-lucky coin

Saul heard about this sweet idea at the G4G8 conference. It's perfect for an Instructable - hopefully someone is suitably inspired to do it.Take 40lb's of pennies. Drop them all (equivalent to tossing). Collect all those that were heads and put them back in the bucket. Drop them all again, again choose all those that land heads. Repeat until there is only one coin left. This is the luckiest coin in your bucket. Apparently, one guy got a coin that tossed 17 heads in a row...

Posted by ewilhelm 10 years ago


Christmas list!!!! HELP ASAP!

OKOKOKO, so all I have on my christmas list is a drumset. I know I'm getting that, but my dad said he saved up enough money for some little stuff with my drumset. I want coins for my coin collection but everything is too expensive!!! Does anyone know of any interesting online coin stores with cheap products? It would help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Posted by Flumpkins 8 years ago


The sound of a bad penny - Finding counterfeit coins by sound

Acoustic method could quickly catch counterfeit coins.You might assume that counterfeiters only bother with high-value bank notes, but there is a chance that some of the coins jangling around in your pocket right now are fake. If Mototsugu Suzuki gets his way, it may be that jangling that gives them away.Suzuki, a researcher at the Tokyo Metropolitan Police Department's Criminal Investigation Laboratory in Japan, has developed a way of examining coins based on the sound they make.In Suzuki's method, coins slide down a slope and then fall onto a brass block. The sound they make on impact is relayed via a microphone to a computer.Although the human ear cannot usually tell the difference between real and fake, a computer can. Genuine 500-yen coins showed four distinctive peaks of natural resonance frequencies in the 5-20 kilohertz range. This was not the case for fakes; some fakes produced only three peaks, while others showed four but at different frequencies to genuine coins.In addition to helping detect counterfeits, the sound data could be used to build up a database of fake coins, suggests Suzuki. This might help law enforcement officers to prove how many coins one counterfeit operation is responsible for. This would make for an awesome Instructable! Start with these two Instructables and get dropping pennies! https://www.instructables.com/id/Build-a-dsPIC-Oscilloscope-and-Spectrum-Analyzer-/https://www.instructables.com/id/Low-speed-AVR-oscilloscope/

Posted by ewilhelm 10 years ago


knex coin pusher

This is my knex coin pusher. before you start begging for instructions i dont know if i will post but if to many people struggle to build one i might post instructions, because im not posting instructions i have taken extra+ photos of the mechinism and how it works. i had to use white connectors because i didnt have enough coins, if you do this the connectors wont fit down the slots so you have to just place them. i would make a video but the batteries in the moter died. it has a secret gutter on the side that real coin pushers have and the monney goes to the owner of the machine, if you dont want this you can push the orange connectors on the right down and it blocks it out. this one is bassed on bezempje95 link to his one  http://www.youtube.com/watch?v=5dOPa1-zDUI he has more infomation on his in the link in the description.(if you havent looked at his you need to because its so awesome). if you cant build it from the pictures put a comment saying: "POST +1" with the capitals and if it gets over 15 before christmas i might post it.

Posted by slithien 7 years ago


Make your own slot machine - advice from a real Maker

I was looking for something else, and found this site by local (he lives about twenty minutes from me) Maker Extraordinaire, Tim Hunkin. He has a main site, as well: http://www.timhunkin.com/ .Tim is best know in the UK for an old TV series "The Secret Life of..." (In which I once saw him record his own voice on stickytape), a similarly-themed exhibition he did in the Science Museum in London, and for his newspaper cartoons called The Rudiments of Wisdom.

Posted by Kiteman 10 years ago


Habbo coins

Leave the User Password habbo habbo and quantity of coins example: User: ful54 Password: gash15 Quantity: 1500

Posted by felipe320 8 years ago


PVC Coin Dispenser Belt

Anyone know how to make a PVC pipe Coin Dispenser Belt? Push a button & out pops a coin from one of fore tubes hanging on your belt.    I need to know what size pipe to use, how the triggers work to spit the coins out & how to put it all together.

Posted by elkaddalek 3 years ago


coin/penny battery

Can i make a ''coin/penny battery'' with ''Bronze and Aluminium'' alloyed coin????. well my country's currency coins have following Composition: 1: Bronze and Aluminium       1 rs 2: Brass and Aluminium         2 rs 3: Cupro-nickel                      3 rs can i use any of them to make coin/penny battery?????please tell me if any of them will work.....

Posted by usama1994 4 years ago


Coin sorter, how to get a coin to trigger a sensor (buttons)? Answered

Hey people! So I am making a project, it count's coins via arduino. So I need a way the coin can touch a button or some sort so it can trigger a the code in the arduino. See, the arduino has 4 buttons each one is a value to a coin, in the real world (physical project) there is a coin which falls from a sort o slot. It falls straight. The question here is, how to trigger a type of switch, button, tab with only the force of the coin. Any ideas for buttons or tabs or switches or metal contacts please, thank you. Some kind of easy input sensor (maybe light sensor?) It has to be cheap and it has to be small.

Asked by TobaTobias 5 years ago


Petty Coin Bank Design - Coin Dispenser. What should i use?

Hey Guys, need your advise on this... Going straight ahead to the point, What can you suggest i can use for the movement of the Plate in the Coin Dispenser Design in the image? I need a component that does a push-pull action based on the design inspired from this video: http://www.youtube.com/watch?v=rwG-sG27360 Need your advise. :)

Asked by Gedon 5 years ago


what type of coin is this and what does the pictures mean? Answered

I found this strang mexican coin but i still don't know what it is. i have a question , two of them 1 what does the picture with the eagle or dragon mean and  2 what does the pictures around the coin mean.

Asked by hellmaster993 5 years ago


What is the value of a coin that has been struck offcenter?

I have a number of pennys that have all been mis-struck. One is a coin blank, two have been hit almost half off the coin, and one has the reverse of another coin pressed into it's obverse side. I know that the exact value can't be determined without seeing the actual coin but I was wondering if they could be worth anything more than a dollar or two.

Asked by robocrazy155 8 years ago


Counterfeit or Error coin? Answered

Hello, I have a 50 pence coin that I noticed because it was not accepted in a vending machine. On comparison with another coin of the same year it became obvious that something was awry. I don't mind because I like fake coins, they are interesting. It is noticeably thinner and at least a gram lighter; it just feels less substantial. The rim on the upper half of the coin on both sides has either worn away or was never there. I looked on the Googles but can only find information on counterfeit pound coins, of which there are millions ( between 1:50 and 1:200). It seems that a 50 pence may be too low in value to fake. Are there any coin collectors out there who know whether this is likely to be a fake coin or an error coin. If it is an error coin does it have a value. Thank you. PS Through reading around, I discovered that the 50 pence is a special shape; despite its  odd shape it has a constant diameter.

Asked by FriendOfHumanity 5 years ago


Which New Zealand coins are best for hammering?

I live in Auckland, New Zealand. This in itself is awesome, but the only problem is that most Instructables like this or this call for American currency, and I seem to be running out of it. My options are to go to America again, or to find an NZ alternative. Obviously the latter is cheaper, so I was wondering which of our coins to use. Anyone?

Asked by St Jimmy 7 years ago


Help with a cast metal coin instructable!

Need help finding a particular instructable, friends.  I would almost bet body parts that I saw an instructable here that had the following process to it for making a custom fantasy coin or medallion: Use the underside  bottom of a paper coffee cup-mix up a portion of Bondo and fill the bottom recess with it.  When Bondo hardens, pop out the round disc, paste a paper disc onto it then draw out your coin or medallion design.  Carve out your design with a dremel or similar, make a silicone putty mold, then when mold is dry, pour pewter or zinc to make a custom coin. Darken and polish. I know I've seen it, I'm wanting to stick it in my favorites list so I don't lose it again, and I especially want to thank the author for coming up with such a simple process for a custom medallion. Can anyone help me?

Posted by pheenix42 1 year ago


What should I use to make a necklace out of a coin?

I wanted to make a necklace out of my lucky coin, but i cant seem to find anything that tells how to do it without making a hole or soldering to the coin. i was hoping someone could point me towards a method that wouldn't destroy the coin so i could keep it hole and solder free.

Asked by coldpsyco91 6 years ago


Minting My Own Geocoin

I've been Geocaching for a while now and I wish to make my own Geocoin. I looked around all the "official" sites, only to have my head explode at the prices. $1,507.38! That's more than my high speed camera!Three for $27 with the fine print stating that you will more than likely end up paying $360-$540! Is it too much to ask for one or two custom coins at a cost in the lower double digits?! Why would I want to pay so much for something that will travel around in caches subject to anyone's whim? My question is, how can I make my own custom coin? The tracking code will be provided by one of the Travel Bug Dog Tags I own (at least those are cheap). Any help or advice will be useful, just let it be known that I am absolutely terrible at molding.The desired end result should look something like these rough sketches, front and back (followed by an example coin that I picked up and moved. No tracking numbers, no cheating!).

Posted by Spl1nt3rC3ll 9 years ago


PETTY COIN BANK- initial stage. Can anyone help?

Hey Guys... need some advise and help on the initial idea and components of this project. PETTY COIN BANK: PURPOSE: - To electronically segregate coins, display the total number of coins per each case and the total monetary amount inside, with dispensing and security capability. FUNCTION: - Individual coins inserted in the coin slot will be segregated to go to the corresponding individual coin cases and each case will count and display the number of coins dropped in them and a general display for the total amount of money inserted in the device. With a security lock, the device is capable of dispensing coins. so What do you think? Some advise on how i can make this possible... I do have some ideas on the segregation and dispensing mechanisms of the project, and how to identify each of the coins from each other when inserted in the coin slot.My concern would be the Displays for the each NUMBER OF COINS that falls per case (3 displays in total), and the TOTAL MONETARY AMOUNT display that counts per inserted coin in the system. Of course when dispensing, the number of coins should be decremented and the TOTAL MONETARY AMOUNT would change as well depending on the coin and number of coins dispensed. And as you might have read from the purpose and function, this project intends to have a security lock for the dispensing mechanism. Anyone can put coins but only someone that knows the code can dispense coins. I plan on putting a keypad for that. but here is the thing... I DON'T KNOW WHAT MICRO-CONTROLLER I SHOULD USE. I plan on using ARDUINO, but what arduino should i use? and if someone can help i'd like a count of the inputs and outputs so i can decide on what to use. Thanks if someone helps on this...

Asked by Gedon 5 years ago



do we have a coin slot that can accept many denominations?

We need to have a coin slot that can accept many denominations and what programmable pic is used in vending or mame machines?

Asked by viennie 7 years ago


Is it possible to use programmable pic in making our project coin automated changer?

Our project coin automated changer. the user will insert 5 peso coin and it will dispense 5 (1 peso coins) by the use of programmable pic, is it possible? any suggestions? thanks.

Asked by viennie 7 years ago


Gluing euro coins together??

I have some coins from various countries that I have visited and would love to make use of them. I would like to create a bowl using all of the coins but have not found a glue strong enough to keep them together. Could anyone please assist? I have attached an image of what I would like to create

Posted by Hurleysamson 3 years ago


Do you think he reveal david blaine coffee to coin correctly?

Hey people,do you think he revealed coffee to coin magic correctly?here is the video..

Posted by Mfmalive 10 years ago


i have a konami arcade cabinet i got at target with built in games, anyone know hot to add games or another card in it.

Its the konami with 11 built in games, i found taito superman game and i want to use the cabinet i have instead of building one ...im not too smart.? i have a budget of about 200 bucks and thats about how much it would cost for the superman card, building the cabinet would add about another 100-200. any ideas??

Asked by darkside3131 6 years ago


Can you make/program your own multi-coin acceptor?

Hey everyone! I need help with this certain project of mine. I bought this coin acceptor and turns out it can only accept a certain type of coin based on it's diameter. The problem is I need a multi-coin acceptor that can accept three types of coin which I will then hook up to a PLC. Tried looking for one over the net (Ebay and other sites) and I couldn't find anything. I also tried looking for some locally (I'm from a 3rd world country) and didn't find anything either. Any type of help will be useful. Thank you in advance!

Asked by deus.ex.machina 7 years ago