Great point, I didn't test those materials. Sorry for delay responding, I've been off youtube for a long time. I will keep these other materials in mind as I hope to eventually make a follow up coin slide video with more findings on how to detect fake coins with a coin slide.
Hi, I was curious if having the steel plate behind makes a difference? When placing the magnetics side by side how can you tell the poles are alternating like you mention? Your design is the best I've seen and having a longer run makes a difference to see the speed. Thanks!
Sorry for delay responding, I've been off youtube for a long time. Glad you like the coin slider video and design. To respond about your questions, when making this project I tried with and without the steel plate. The result was that the coins drop quite a bit slower with using the steel plate. I would recommend you do this same experiment with/without the steel plate to prove it to yourself. The reason why is because the steel plate acts like a conductor of magnetic energy forcing the energy upward towards the coins instead of allowing it downward where it's of no use. Far as determining magnet polarity, the way I did it is to add the first magnet to the start of the steel plate, then bring a second magnet near the first magnet (having it in the orientation as if you were going to add it to the steel plate). But before you add the second magnet, check if it attracts or repels to the first magnet (being careful not to have it attract to the steel plate). If the two magnets repel then add the second magnet to the steel plate in the orientation you're holding it. If they attract then flip the second magnet over so that it repels then add it to the steel plate. In other words, when magnets attract then you know they are opposite polarity and you want alternating opposite polarity facing upward. Then just repeat this process for more magnets. If you get it wrong it will be obvious when sliding a silver coin, it will go from slow to fast if orientation is wrong. Also the rare earth magnets are fragile so had to be be careful when determining orientation or adding to steel plate, I broke one or two accidentally allowing them to slam together. Point being I'd suggest ordering a couple more than you need for your project.
I want to build one... Are Neodymium Magnets polarized? Does it make a difference which side of the magnet I glue to a wood ramp? Both sides of my Neodymium disc magnets seem to attract.
Glad you liked the project and want to build a slide of your own design. Yes the magnets are polarized north and south. It doesn't matter which polarity you stick to the ramp, what is important is that as the coin slides down it hits alternating polarities as much as possible. Also you mention glueing the magnets to the wood slide, as a suggestion try placing the magnets on a steel bar like in the video, it will greatly increase the magnets strength facing the coins which will in turn make the coins fall slower thereby making difference between different metal coins easier to spot. Also I'd suggest using long and narrow rectangular magnets like in the video rather than disk magnets. Good luck with your project.
If any questions or improvements for this project/video please let me know. There is a Sketchup CAD model available for this design if you’d like to make it. Please comment, like, share, subscribe to my channel. And if you have an idea for a future project you like to see just let me know.
Nickel is also ferromagnetic. U.S. five cent 'Nickels' minted since 1866 (except for the 1942 - 45 'War Nickels') are 75% copper, 25% nickel as noted in video. 'Clad' U.S. dimes, quarters from 1965 to date have a core layer of pure copper with outer layers of the same 75% copper, 25% nickel. Half dollars 1971 to present are the same clad composition, approx. net 82% copper, 8% nickel. All of the Canadian five cent 'Nickels' from 1955 through 1981 and several of the issues prior were 99.9% nickel. U.S. half dollars dated 1965 through 1970 do not contain nickel, they are of 'silver clad' with core layer of 20.9% silver, 79.1% copper and outer layers of 80% silver, 20% copper for a net 60% copper, 40% silver. U.S. half dollars, quarters, and dimes dated 1964 and prior are 90% silver, 10% copper.
This is good information on the metal composition of various coins. I think it would have been useful to include this type info in the video as well as electrical conductivity for metals, maybe in the form of a tables. Thank you for the feedback.
Glad you liked the video and design of the coin slide. One of these days I'd like to make a follow up video going into more detail about learnings from using the slide. In short, my opinion is the slide can be of some use however, as you know, a slide should be just one of many techniques to spot fake coins.
Yes you should definitely make a few and sell them on eBay. I'm pretty sure it will sell like hot cakes. I want to buy one. Your slides is the best I've seen by far. Please let me know if and when you do have some for sale. Thanks.
Thank you very much for the kind words about this design and glad you liked the project. I would consider making these for sale if enough people were interested in buying them. Unfortunately with something like this making just a couple at a time would be inefficient due to the setup of each step in making them takes the most time. I will definitely keep in mind your interest and if I do try making them for sale would send you a note on here about it.
At this point it doesn't seem there is enough interested in this to make them for sale. Just out of curiosity how much roughly would you be willing to pay for such a coin slide if you don't mind me asking? Glad you liked the video. I'm hoping to make a follow up video with some more pros, cons, and usage tips for magnetic coin slides.
Hello! This comment makes it worth it for me to make these videos. Glad you like the video. PS - sorry for delay responding, I took a break from youtube but am back now.
Unfortunately not at this time, but if there was enough interest I would consider making them for sale. Out of curiosity how much would you be willing to pay for this?
I'm considering making these however so far there doesn't seem to be enough interest to make it worthwhile. Out of curiosity how much would you be willing to pay for one of these?
Yes correct. The magnets used in this project measure 40 x 10 x 4mm, and the poles are located on the 40 x 10mm top and bottom surfaces. It's a good point you raised, pole orientation is one of the key factors when determining which magnet to use for a coin slide. The idea is to design the coin slide to slow coins as much as possible to accentuate slide rate differences between a known good coin and the coin being checked. This means using strongest neodymium magnets (N52 preferred), using a magnet size the maximizes the number of polarity changes as the coin slides down but yet is wide enough to accept the largest coin you intent to check, directing the magnet fields upwards toward the coin using an iron bar on the bottom, keeping the coin close as possible to the magnets, & minimizing any friction on the coin as it slides down.
I was thinking that a very thin piece of felt over the magnets would protect the finish of the coins, particularly collector grade coins. What size dimensions are the magnets? And where did you get the iron?
Hey Rich, I'd thought about felt as well but had concerns it would become contaminated, however if only running a few or always clean coins it may be fine. Another option is if the felt was replaceable. What I came up for collector type coins was to make a small holder out of very thin parchment paper that the coin sits in then that slides down. Like in my video I would slide both a known good coin and the coin being tested at the same time. The parchement paper is nonstick so it slides over the magnets well and the coin is never sliding against ainthing, and it avoids contamination because you can make a new holder at any time. The magnets are N52 type and 40x10mm size that I purchased new off ebay. The iron bar was 1.5" wide x 1/8" thick flat bar that I got from a box store like Home Depot. At some point in the future I'm hoping to do another video showing some learnings from using this coin slide and pros/cons of using it to detect fake coins. Let me know if anymore questions and good luck with your project.
As a data point I purchase magnets for this project from Ebay which was best option I could find at the time. The magnets used were 40mm long x 10mm wide x 4mm thick. I bought a pack of 50 of them for $36.99. The project used less than 50, I wanted some extras for other things. The Ebay supplier name is "biwecity". Though in looking at Ebay just now it seems this supplier no longer offers the exact same magnet but if you search under "40x10x4mm magnet" you will find other suppliers selling the same thing at reasonable prices. I can say these N52 magnets are extremely strong and the iron bar used in the video makes them much more so. But they are brittle and easily damaged if not use to handling them. I broke a couple myself before figuring out a safe way to handle/store them. Good luck with your project. I hope to post a follow up video on learning's from using this coin slide at some point in the future in case you wanted to subscribe for that. In short it is not as simple or effective as some have portrayed coin slides at detect fake coins.
Hey thanks for replying man! This helps. Is the iron bar something I need to have a custom shop fabricate? Anything off the shelf for that? The epoxying I better be able to figure out! ;)
Jim, Glad you liked the video. I've been thinking about making these coin slides if there was enough interest in them. Maybe I'll make a couple and put them on ebay. If I do that I'll be sure to let you know. Will this be ok? BTW I am going to be making another follow up video in the future showing some learning's I found from using the coin slide.
Glad you liked this project. I'm still thinking about if to make these and post them for sale on ebay. If I do then for sure I'll get back to you. Again thank you for the interest in this project.
Привет мой друг. Я надеюсь сделать последующее видео по моим занятиям, используя слайд монеты. Он будет решать вашу проблему. Я согласен с тем, что неясно сказать разницу между серебряной медной монетой. Но с правильной техникой я нашел это возможно.
Hello There! Wanted to mention I have seen your videos and did use aspects of your coin slide design with my own design. Appreciate you posting those videos on your methods and insights of detecting fake silver coins.
Yes agree, thank you for this feedback. Making these videos has been a learning process for me. My newer videos are more to the point. I'll keep trying to improve how I make them.
Good work!
Glad you like the video.
Did you test with other materials such as lead or tin? Thank you
Great point, I didn't test those materials. Sorry for delay responding, I've been off youtube for a long time. I will keep these other materials in mind as I hope to eventually make a follow up coin slide video with more findings on how to detect fake coins with a coin slide.
Hi, I was curious if having the steel plate behind makes a difference? When placing the magnetics side by side how can you tell the poles are alternating like you mention? Your design is the best I've seen and having a longer run makes a difference to see the speed. Thanks!
Sorry for delay responding, I've been off youtube for a long time. Glad you like the coin slider video and design. To respond about your questions, when making this project I tried with and without the steel plate. The result was that the coins drop quite a bit slower with using the steel plate. I would recommend you do this same experiment with/without the steel plate to prove it to yourself. The reason why is because the steel plate acts like a conductor of magnetic energy forcing the energy upward towards the coins instead of allowing it downward where it's of no use. Far as determining magnet polarity, the way I did it is to add the first magnet to the start of the steel plate, then bring a second magnet near the first magnet (having it in the orientation as if you were going to add it to the steel plate). But before you add the second magnet, check if it attracts or repels to the first magnet (being careful not to have it attract to the steel plate). If the two magnets repel then add the second magnet to the steel plate in the orientation you're holding it. If they attract then flip the second magnet over so that it repels then add it to the steel plate. In other words, when magnets attract then you know they are opposite polarity and you want alternating opposite polarity facing upward. Then just repeat this process for more magnets. If you get it wrong it will be obvious when sliding a silver coin, it will go from slow to fast if orientation is wrong. Also the rare earth magnets are fragile so had to be be careful when determining orientation or adding to steel plate, I broke one or two accidentally allowing them to slam together. Point being I'd suggest ordering a couple more than you need for your project.
I want to build one... Are Neodymium Magnets polarized? Does it make a difference which side of the magnet I glue to a wood ramp? Both sides of my Neodymium disc magnets seem to attract.
Glad you liked the project and want to build a slide of your own design. Yes the magnets are polarized north and south. It doesn't matter which polarity you stick to the ramp, what is important is that as the coin slides down it hits alternating polarities as much as possible. Also you mention glueing the magnets to the wood slide, as a suggestion try placing the magnets on a steel bar like in the video, it will greatly increase the magnets strength facing the coins which will in turn make the coins fall slower thereby making difference between different metal coins easier to spot. Also I'd suggest using long and narrow rectangular magnets like in the video rather than disk magnets. Good luck with your project.
If any questions or improvements for this project/video please let me know. There is a Sketchup CAD model available for this design if you’d like to make it.
Please comment, like, share, subscribe to my channel. And if you have an idea for a future project you like to see just let me know.
Would you mind sending me the SketchUp model?
Nickel is also ferromagnetic.
U.S. five cent 'Nickels' minted since 1866 (except for the 1942 - 45 'War Nickels') are 75% copper, 25% nickel as noted in video.
'Clad' U.S. dimes, quarters from 1965 to date have a core layer of pure copper with outer layers of the same 75% copper, 25% nickel. Half dollars 1971 to present are the same clad composition, approx. net 82% copper, 8% nickel.
All of the Canadian five cent 'Nickels' from 1955 through 1981 and several of the issues prior were 99.9% nickel.
U.S. half dollars dated 1965 through 1970 do not contain nickel, they are of 'silver clad' with core layer of 20.9% silver, 79.1% copper and outer layers of 80% silver, 20% copper for a net 60% copper, 40% silver.
U.S. half dollars, quarters, and dimes dated 1964 and prior are 90% silver, 10% copper.
This is good information on the metal composition of various coins. I think it would have been useful to include this type info in the video as well as electrical conductivity for metals, maybe in the form of a tables. Thank you for the feedback.
@@True_Lou You're welcome.
Good job. I really enjoyed watching.
Glad you liked the video and design of the coin slide. One of these days I'd like to make a follow up video going into more detail about learnings from using the slide. In short, my opinion is the slide can be of some use however, as you know, a slide should be just one of many techniques to spot fake coins.
4:49 he explains that the magnets should be arranged with alternating poles facing toward the coin. 10:07 he drops the first coin.
Yes you should definitely make a few and sell them on eBay. I'm pretty sure it will sell like hot cakes. I want to buy one. Your slides is the best I've seen by far. Please let me know if and when you do have some for sale. Thanks.
Thank you very much for the kind words about this design and glad you liked the project. I would consider making these for sale if enough people were interested in buying them. Unfortunately with something like this making just a couple at a time would be inefficient due to the setup of each step in making them takes the most time. I will definitely keep in mind your interest and if I do try making them for sale would send you a note on here about it.
Let me know if you build them. I’m in as well I would pay up to $60 bucks for one
I'd love to get one of these from you, you seem very knowledgable.
At this point it doesn't seem there is enough interested in this to make them for sale. Just out of curiosity how much roughly would you be willing to pay for such a coin slide if you don't mind me asking?
Glad you liked the video. I'm hoping to make a follow up video with some more pros, cons, and usage tips for magnetic coin slides.
Genius I'm fixing to build my own now.
Hello! This comment makes it worth it for me to make these videos. Glad you like the video. PS - sorry for delay responding, I took a break from youtube but am back now.
@@True_Lou your good I actually ended up making my own kind I'll make a video soon about it. Welcome back.
Any For sale?
Unfortunately not at this time, but if there was enough interest I would consider making them for sale. Out of curiosity how much would you be willing to pay for this?
dumas5000 $29-39 if it was made out of cheaper wood $49-$80 if made out of little more expensive wood.
Great video. Looking forward to your next Magnet Slide video.
Glad you like the video. And yes I will definitely be doing a follow up video in the future with some more thoughts on using this magnetic slide.
I I, um,I, um, uh, um, liked the video
Thank you for the feedback, and I um uh agree. Thought about taking it down for this reason and will do better for any future video.
Do you make these?
I'm considering making these however so far there doesn't seem to be enough interest to make it worthwhile. Out of curiosity how much would you be willing to pay for one of these?
@@True_Lou street value on a weapon like this is going to be in the $50 range IMO
So you're saying that the poles of the magnets are along the top and bottom, vs. right and left, which you'd expect from a magnet shaped like this?
Yes correct. The magnets used in this project measure 40 x 10 x 4mm, and the poles are located on the 40 x 10mm top and bottom surfaces. It's a good point you raised, pole orientation is one of the key factors when determining which magnet to use for a coin slide. The idea is to design the coin slide to slow coins as much as possible to accentuate slide rate differences between a known good coin and the coin being checked. This means using strongest neodymium magnets (N52 preferred), using a magnet size the maximizes the number of polarity changes as the coin slides down but yet is wide enough to accept the largest coin you intent to check, directing the magnet fields upwards toward the coin using an iron bar on the bottom, keeping the coin close as possible to the magnets, & minimizing any friction on the coin as it slides down.
I was thinking that a very thin piece of felt over the magnets would protect the finish of the coins, particularly collector grade coins.
What size dimensions are the magnets? And where did you get the iron?
Hey Rich, I'd thought about felt as well but had concerns it would become contaminated, however if only running a few or always clean coins it may be fine. Another option is if the felt was replaceable. What I came up for collector type coins was to make a small holder out of very thin parchment paper that the coin sits in then that slides down. Like in my video I would slide both a known good coin and the coin being tested at the same time. The parchement paper is nonstick so it slides over the magnets well and the coin is never sliding against ainthing, and it avoids contamination because you can make a new holder at any time. The magnets are N52 type and 40x10mm size that I purchased new off ebay. The iron bar was 1.5" wide x 1/8" thick flat bar that I got from a box store like Home Depot. At some point in the future I'm hoping to do another video showing some learnings from using this coin slide and pros/cons of using it to detect fake coins. Let me know if anymore questions and good luck with your project.
dumas5000 thanks!!
Hello does anyone know the best place to get the magnets? Also what thickness?
As a data point I purchase magnets for this project from Ebay which was best option I could find at the time. The magnets used were 40mm long x 10mm wide x 4mm thick. I bought a pack of 50 of them for $36.99. The project used less than 50, I wanted some extras for other things. The Ebay supplier name is "biwecity". Though in looking at Ebay just now it seems this supplier no longer offers the exact same magnet but if you search under "40x10x4mm magnet" you will find other suppliers selling the same thing at reasonable prices. I can say these N52 magnets are extremely strong and the iron bar used in the video makes them much more so. But they are brittle and easily damaged if not use to handling them. I broke a couple myself before figuring out a safe way to handle/store them. Good luck with your project. I hope to post a follow up video on learning's from using this coin slide at some point in the future in case you wanted to subscribe for that. In short it is not as simple or effective as some have portrayed coin slides at detect fake coins.
Hey thanks for replying man! This helps. Is the iron bar something I need to have a custom shop fabricate? Anything off the shelf for that? The epoxying I better be able to figure out! ;)
can confirm, ebays magnet game is tight. some of the illegal chinese ones can chop your fingers right off
@@True_Lou how do I align the magnets? Wither they want to pull away from each other or against each other.
EXCELLENT WELL DONE
Thank you. Glad you liked the project!
where can -I buy one?
Jim, Glad you liked the video. I've been thinking about making these coin slides if there was enough interest in them. Maybe I'll make a couple and put them on ebay. If I do that I'll be sure to let you know. Will this be ok? BTW I am going to be making another follow up video in the future showing some learning's I found from using the coin slide.
Can you reach out to me I want to pay you to ship me one!
Glad you liked this project. I'm still thinking about if to make these and post them for sale on ebay. If I do then for sure I'll get back to you. Again thank you for the interest in this project.
To many DESCRIPTION NOT JUST DOING IT FIRST
Thank you for this feedback, and agree on keeping the descriptions to a minimum. Will work on that for future videos.
👍👍👍
Подделки из меди покрытые серебром -так же двигаются как и серебряные монеты..
Привет мой друг. Я надеюсь сделать последующее видео по моим занятиям, используя слайд монеты. Он будет решать вашу проблему. Я согласен с тем, что неясно сказать разницу между серебряной медной монетой. Но с правильной техникой я нашел это возможно.
Nice job. Check out the one I made.
Hello There! Wanted to mention I have seen your videos and did use aspects of your coin slide design with my own design. Appreciate you posting those videos on your methods and insights of detecting fake silver coins.
Jesus you 2. Get a room at a hotel hosting a coin slide convention will ya
Not a very good speaker. Rambling alot
You mean you didnt need 2 minutes tutorial of how to tighten or loosen a wing nut?
Yes agree, thank you for this feedback. Making these videos has been a learning process for me. My newer videos are more to the point. I'll keep trying to improve how I make them.