how will i recognize original and fake arduino boards ? Answered

Question by nirmalnirmal 4 years ago  |  last reply 1 year ago


what was ibles orginal indended for? Answered

What was ibles orginal indended for? just wornding

Question by knexsuperbuilderfreak 9 years ago  |  last reply 9 years ago


Why do we?

Today I'm going to talk about the so dreaded block trigger that everyone hates. But why? You say they lack (or have none) innovation. You can't deny it. Even the greatest K'NEXers started out with block triggers. The K'NEX gun itself started with a block trigger. So people are just shunning our orgin. With out the block trigger, K'NEX guns would've NEVER existed. Think about it. Since newer systems were thought of and built, people just don't prefer block triggers. I don't hate block triggers, i just don't prefer them. It's not like we should all go praise them for they are our orgin, but we should just ignore them if you still hate them, or just keep in mind that this is our orgin and not even say a thing.

Topic by NYPA 9 years ago  |  last reply 9 years ago


Can anyone help me identify this bayonet? I dont think it is older than 30 years? Help please.

Any info as in orgins, age , style would be great. My curiosity is peaked and would love some help.

Question by DajhiaP 1 year ago  |  last reply 1 year ago


where can i get a orignal knex coaster/ big gray motor?

Ive seen the ibles but they use the big gray motor i was wordin if some one could give me a link? also i was wordin bout where i can get a orginal knex coaster

Question by knexsuperbuilderfreak 10 years ago  |  last reply 9 years ago


What technology is needed to "capture" a handprint on a t-shirt and evaporate to orginal blank t-shirt form?

I am looking for a technology (I was thinking LED lights) to capture a placed handprint on materials such as cotton t-shirts. Once the handprint is quickly captured, I want the handprint to evaporate through a quick reset procedure or within a few seconds naturally. Is there anything out there that will capture imprints on materials? FYI I have no technology background, so please be kind on choice of words in explaining your thoughts and ideas. Thank you

Question by richmc34 8 years ago  |  last reply 8 years ago


ms-dos help?

well i was ready about windows 8 and saw the orginal windows called windows 1.0 , 2.0 , and 3.0 and i figured you could only get the installion disk off ebay or from a friend so is it legal to get a copy off the net and use it or would i have to buy it? 2nd how would i install it just like windows xp (somewhat) thanks

Question by knexsuperbuilderfreak 8 years ago  |  last reply 8 years ago


SELLING MY K'NEX

To mark my retirement of making knex guns, From Tuesday the 24th of november, my whole set of K'nex will be up for sale on eBay, which is made up of the power tower crane, space tower, 2 cyber K'nex sets and countless other sets, and includes 4 boxes full of wheels, gears and motors (8 electric motors to be exact), i will ship internationally if requested and if you state that you are a K'nex gunner i will include the orginal semi-auto prototype that i created, a splodies grenade and launcher loaded and ready to fire and a large box of rubber bands free (this will be broken down if a non knex guner buys it) i will post a link  to the sale after it has been listed and good luck! pictures uploaded...

Topic by bedbugg2 9 years ago  |  last reply 9 years ago


DJ mixer problem? Answered

I have recently purchased a Soundlab dsm5....I have minimal RCA cable at the moment so i have done this -> I have connected my ipod to the mic jack with a 3.5mm to 1/4 inch adaptor..... then from that i have connected a RCA cable to 3.5mm mono adaptor (orginally for a camcorder so it has a video RCA as well)  from the AMP channel on the mixer to the AMP......  My problem is ....is that the Music plays but has a really bad quality? ....my amp is not bad quality, as i have done played music with it with no problem and the mixer and the amp are both sound lab....It might be I shouldnt connect the ipod to the mic but to line one or line 2 (inputs) to get more quality .... I dont know?...... Best awnser gets a patch!

Question by oscarthompson 9 years ago  |  last reply 9 years ago


Can you help me convert some Basic code to Processing code for calculating 555 IC timing?

I want to modernize this BASIC code that I found for calculating the values of capacitors, or resistors to use for timing with the 555 IC. /* This BASIC code taken from the Ramsey Electronics Universal Timer - Oscilator Kit UT5 instructions I decided to convert it into processing since no one really uses basic like this anymore. But you still can. I don't. 10 PRINT "FIND FOR TIME [T], MICROFARADS [C] OR OHMS [R]?" 20 INPUT "ENTER SELECTION: "; X$ 30 IF X$ = "T" THEN 100 40 IF X$ = "C" THEN 200 50 IF X$ = "R" THEN 300 100 INPUT "C1 in microfarads = ";C 110 INPUT "R3 in ohms = ";R 120 PRINT "TIME (seconds) ="; (1.1 *C*.000001)*R 130 PRINT 140 GOTO 10 200 INPUT "Desired TIME in seconds = "; T 210 INPUT "R3 in OHMS = "; R 220 PRINT "Required capacitance in ufd. = "; T/(1.1*.000001*C) 230 PRINT 240 GOTO 10 300 INPUT "Desired TIME in seconds = "; T 310 INPUT "Value of C1 in microfarads = "; C 320 PRINT "Required value of R3 in ohms = "; T/(1.1*.000001*C) 330 PRINT 340 GOTO 10 */ /** typedinput taken from http://wiki.processing.org/index.php/Typed_input @author Tom Carden */ // code was also taken from: // Learning Processing // Daniel Shiffman // http://www.learningprocessing.com // Example 18-1: User input // Variable to store text currently being typed String typing = ""; // Variable to store saved text when return is hit String saved = ""; String typedText = "Find for time [T], microfarads [C] or ohms [R]?"; PFont font; void setup() {   size(640, 480); //bigger window. Orginal code has small window   font = createFont("CourierNew", 18);   //fixed width font rather than other ugly font   //suggested in original code. } void draw() {   /*is this like the equiv to loop in arduino? I don't know I hate this language anyway. BASIC is easier to follow, but I wanted to make this program easiliy accessible for modern people.*/   background(255);   fill(255,0,0);   textFont(font,18);   // this adds a blinking cursor after your text, at the expense of //redrawing everything every frame   text(typedText+(frameCount/10 % 2 == 0 ? "_" : ""), 35, 45);   //nice touch orginal coder! } void keyPressed() {     if (key == '\n' ) {     saved = typing;     // A String can be cleared by setting it equal to ""     typing = "";   }   if (key == 't' || key == 'T') {     typedText = typedText.substring(0,max(0,typedText.length()-1));     TIME();   }   if (key == 'c' || key == 'C') {     MICROFARADS();   }   if (key == 'r' || key == 'R') {     OHMS();   } else {     //value = 0;     typedText = typedText + key;   } } void keyReleased() {   if (key != CODED) {     switch(key) {     case BACKSPACE:       typedText = typedText.substring(0,max(0,typedText.length()-1));       break;     case TAB:       typedText += "    ";       break;     case ENTER:     case RETURN:       // comment out the following two lines to disable line-breaks       typedText += "\n";       break;     case ESC:     case DELETE:       break;     default:       //typedText += key;     }     if (key == 't' || key == 'T') {     typedText = typedText.substring(0,max(0,typedText.length()-1));   }   } } void TIME(){    background(255);   fill(255,0,0);      typedText = "\nC1 in microfarads = ";      //typedText = typedText.substring(0,max(0,typedText.length()-1));      //typedText += key;      //keyReleased();    } void MICROFARADS(){} void OHMS(){}

Question by powerman666 6 years ago  |  last reply 6 years ago


Fridge conversion anyone?

When I see my local scrap dealer I can't overlook the amount of well looked after chest freezers and fridges.I already found out that most either have a failed thermostat or failed heating element for the evaporation of the water during auto defrost cycles.So I started to think about converting a nice and small chest freezer for 12V use.A first check for available 12V compressors showed that they cost an arm and a leg.DIY with a 12 air compressor is out of the question for safety reasons and the fact that these toys are not ment to handle these conditions.My next stop was Youtube and I found some teardown and scrapping of fridge compressors.These things are actually so dead simple in design that without the enclosure we would need ear protection all day long.But durablitly is often really simple, sadly this mean anything to use a frequency generator or similar is not only inefficient but will fail on a condesator motor.However, these motors are quite bulky...In therory it should be possible remove all stator and mains voltage bits to make room around the rotor.And from that we really only need the axle and bearing mounts.Am I thinking too simple?What would stop someone from using a suitable sized brushless DC motor with couplings to the cut orginal axle?Modern, small compressors often use less than 200W, so how hard can it be?Disclaimer:I am aware of the legal side of things and such mods are nothing a tradesman would sign off for.But I do wonder and like to tinker to prove a point or theory ;)

Question by Downunder35m 7 months ago  |  last reply 7 months ago


PCB Repair Process of 3 different kind of circuits

1 Power Supply Circuit: During the circuit board repair process, power supply part should be inspected at the first hand and then come to the other part. +/-5V, Power supply failure can occur under below several situation: (1) NO power supply voltage or power supply voltage is deficiency, NC system is often used +/-5V, +/-12V, +/-15V and +/-24V, a few of them use +3.3V, and the varied or unstable voltage of power supply will cause the system working impropery; (2) Use voltmeter to test the voltage of power supply, and the result show is normal. Voltage waveform detected by oscillograph has shown the existence of big ripple. This situation maybe caused by open circuit of Filtering capacitance, bad rectifier diode or cold soldering, but sometimes it could be caused by an overloaded component which has been brokendown and damaged by power. (3) System can run properly when it is just being opened, after a while of operating, the voltage begin to drop off. This is usually caused by voltage stabilizing circuit and large power triode. (4) The voltage decrease accompany with temperature increase maybe cause by component cold soldering, it is electrical connection can be affected negatively when the temperature high up. (5) NO power supply voltage or supply voltage decreases significantly will cause the system to interrupt or stop working, this fault can be detected and spotted easier. (6) When the capacity of power supply load drop off or filter circuit become invalid, it will cause the system halt suddenly, this situation which is very difficult to justify can bring damage to the equipment and facility even get personnel wound. 2 Clock Circuit: Clock circuit mainly exist on the systematic motherboard, it is the foundation of large-scale integrated circuit system through which it can work, it can generate the constant square signal in the circuit base upon the crystal oscillator (commonly known as crystal), Once the crystal oscillator stop working, it is same as the heart of human being stop beating, the whole system will fall into the status of paralyzed, only after crystal can work under normal condition, the systematic circuit can operate under the command of CPU according to the frequency of crystal. The number and frequency of the crystal could be different due to the variety of numerical control system, but generally will at least one crystal, different clock frequencies required by the other circuit can be solved by frequency dividing circuit or other crystal. Crystal possess a higher rate of failure or damage, below are some malfuntions of crystal: (1) Leakage: Use multimeter and switch to P*10K level to test it, if the resistance is infinite, then it can be viewed as normal; (2) Internal OPEN CIRCUIT: Value of resistance is infinite tested by Use multimeter, can fail to generate oscillating pulse in the circuit; (3) Alternative crystal: Due to the transformation of crytal will cause its internal parameter change which can only be detected by osillagraph or cymometer. Although the crystal can still has oscillation, but the clock frequency is deviated from its nominal value, and the still existing oscillation pulse can’t make system circuit work properly due to the value of oscillation is wrong. Only cymometer can test its tolerance now. (4) In clock circuit, the both ends of crystal would be connected to ground by one ceramic capacitor value range from several picofarads to tens picofarads, failure of the clock circuit result from this capacitor leakage, deterioration is also more common. The best tool to test whether the crystal is good or bad could be oscillagraph or cymometer, multimeter is very difficult to detect the root cause. 3 Reset Circuit Reset circuit also exist in the circuit system of motherboard, it is unique set of large-scale digital integrated circuit. Microprocessor and interface circuit are all possess reset terminal. Reset pulse generate by reset circuit will clear the progam counter, force CPU recall the orginal files from the memory, execute initiation process on all the controller chips, system will occurs the phenomenon of disorder or crash as a result of faulty reset circuit, the method of using cymometer to illustrate the reset pulse is turn on/off power supply repeatly, observe and record the pulse value at the right moment of power supply on/off since it should be the normal square wave-form. If there is no existence of reset pulse, all the resistor, capacitor and transistor in the reset circuit should be detected. The reset terminal of integrated circuit should be regular low or high electrical level, or else, it is probably the malfunctional reset circuit or damaged integrated circuit.http://www.circuit-engineering.com

Topic by circuiteng 7 years ago  |  last reply 7 years ago


Combing Arduino Sketches

Hello, I have a question. I need to combine my code for my Arduino Webserver with the code for my Parallax card reader. When I combine them only the RFID card part works? Can someone help me debunk this. I orginally wanted it to be when someone swiped a valid RFID card, that it would launch the webserver? I don't think that's possible though. Here's my code: #define RFID_ENABLE 2   //to RFID ENABLE #define CODE_LEN 10      //Max length of RFID tag #define VALIDATE_TAG 1  //should we validate tag? #define VALIDATE_LENGTH  200 //maximum reads b/w tag read and validate #define ITERATION_LENGTH 200 //time, in ms, given to the user to move hand away #define START_BYTE 0x0A #define STOP_BYTE 0x0D #include #include char ssid[] = "*******";      //  your network SSID (name) char pass[] = "*********";   // your network password char tag[CODE_LEN];  int readLed = 4; int invalidCardled = 5; int validCardled = 6; int ipCam = 7; int doorLock = 8; int alarm    = 9; int status = WL_IDLE_STATUS; WiFiServer server(1025); void setup() {   Serial.begin(2400);    Serial.println("Please Swipe Your Card.");   pinMode(RFID_ENABLE,OUTPUT);    pinMode(readLed, OUTPUT);   pinMode(validCardled , OUTPUT);   pinMode(invalidCardled, OUTPUT);   pinMode(ipCam, OUTPUT);   pinMode(doorLock, OUTPUT);   pinMode(alarm, OUTPUT);       if (WiFi.status() == WL_NO_SHIELD) {// check for the presence of the shield:     Serial.println("WiFi shield not present");     while(true);        // don't continue    // attempt to connect to Wifi network:   while ( status != WL_CONNECTED) {     Serial.print("Attempting to connect to Network named: ");     Serial.println(ssid);                   // print the network name (SSID);     // Connect to WPA/WPA2 network. Change this line if using open or WEP network:        status = WiFi.begin(ssid, pass);     // wait 10 seconds for connection:     delay(10000);   }   server.begin();                           // start the web server on port 80   printWifiStatus();                        // you're connected now, so print out the status   } }   void loop() {   //Start our main Arduino Loop   enableRFID();   //Enable the RFID card   getRFIDTag();   //Reads the tag   if(isCodeValid()) {  //Validates that the tag is good     disableRFID();  //Puts the RFID reader in to low power mode     sendCode();     //Sends the code read to the serial port     delay(ITERATION_LENGTH);  //Debounce?   } else {     disableRFID();  //Got a incomplete code..   }   Serial.flush();   clearCode();       WiFiClient client = server.available();   // listen for incoming clients   if (client) {                             // if you get a client,     Serial.println("new client");           // print a message out the serial port     String currentLine = "";                // make a String to hold incoming data from the client     while (client.connected()) {            // loop while the client's connected       if (client.available()) {             // if there's bytes to read from the client,         char c = client.read();             // read a byte, then         Serial.write(c);                    // print it out the serial monitor         if (c == '\n') {                    // if the byte is a newline character           // if the current line is blank, you got two newline characters in a row.           // that's the end of the client HTTP request, so send a response:           if (currentLine.length() == 0) {              // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)             // and a content-type so the client knows what's coming, then a blank line:                client.println("HTTP/1.1 200 OK");             client.println("Content-type:text/html");             client.println();                         client.println("");             client.println("");             client.println("Remote Security Solutions");             client.println("");                                     client.println("");             client.println("");                         client.println("");             client.println("");             client.println("Remote Door Control");             client.println("");             client.println("ATTENTION!!! SOMEONE IS TRYING TO ACCESS A SECURED DOOR!!!");                                                             // the content of the HTTP response follows the header:             client.println("");             client.print("PLEASE CHOOSE FROM ONE OF THE FOLLOWING OPTIONS BELOW.");             client.print("Unlock The Door:");             client.print("");             client.print("");             client.print("");             client.print("Lock The Door:");             client.print("");             client.print("");             client.print("");             client.print("Sound The Alarm:");             client.print("");             client.print("");             client.print("");                                               // The HTTP response ends with another blank line:             client.println();             // break out of the while loop:             break;                   }           else {      // if you got a newline, then clear currentLine:             currentLine = "";           }         }             else if (c != '\r') {    // if you got anything else but a carriage return character,           currentLine += c;      // add it to the end of the currentLine         }                 if (currentLine.endsWith("GET /1")) {           digitalWrite(ipCam, HIGH);                       }         if (currentLine.endsWith("GET /2")) {           digitalWrite(ipCam, LOW);                        }          if (currentLine.endsWith("GET /3")) {           digitalWrite(doorLock, HIGH);                       }         if (currentLine.endsWith("GET /4")) {           digitalWrite(doorLock, LOW);                       }          if (currentLine.endsWith("GET /5")) {           digitalWrite(alarm, HIGH);                       }         if (currentLine.endsWith("GET /6")) {           digitalWrite(alarm, LOW);                        }                        }     }     // close the connection:     client.stop();     Serial.println("client disonnected");   } }   /**  * Clears out the memory space for the tag to 0s.  */ void clearCode() {   for(int i=0; i     tag[i] = 0;   } }   /**  * Sends the tag to the computer.  */ void sendCode() {   //This is where I would add a return value (the code) to "validiate" or whatever at.     Serial.print("Valid Card ID Scanned:");      char full_tag[10];     for(int i=0; i       if (i == 9)  //Edits by riley porter         Serial.println(tag[i]);  //This checks to see if its the last byte       else                       //If it is it will print a "new line" so that the codes to jumble together         Serial.print(tag[i]);         } }   /**************************************************************/ /********************   RFID Functions  ***********************/ /**************************************************************/   void enableRFID() {    digitalWrite(RFID_ENABLE, LOW);    digitalWrite(validCardled, HIGH); }   void disableRFID() {    digitalWrite(RFID_ENABLE, HIGH); }   /**  * Blocking function, waits for and gets the RFID tag.  */ void getRFIDTag() {      byte next_byte;   while(Serial.available() <= 0) {}   if((next_byte = Serial.read()) == START_BYTE) {          byte bytesread = 0;     while(bytesread < CODE_LEN) {       if(Serial.available() > 0) { //wait for the next byte           if((next_byte = Serial.read()) == STOP_BYTE) break;                 tag[bytesread++] = next_byte;       digitalWrite(readLed, HIGH);       delay(25);       digitalWrite(validCardled, HIGH);       delay(25);       digitalWrite(invalidCardled, HIGH);       delay(25);       digitalWrite(readLed, LOW);       delay(25);       digitalWrite(validCardled, LOW);       delay(25);       digitalWrite(invalidCardled, LOW);       delay(25);       digitalWrite(validCardled, HIGH);       delay(25);       digitalWrite(validCardled, LOW);       delay(25);       digitalWrite(readLed, HIGH);           }     }                  }    }   /**  * Waits for the next incoming tag to see if it matches  * the current tag.  */ boolean isCodeValid() {   byte next_byte;   int count = 0;   while (Serial.available() < 2) {  //there is already a STOP_BYTE in buffer     delay(1); //probably not a very pure millisecond     if(count++ > VALIDATE_LENGTH) return false;   }   Serial.read(); //throw away extra STOP_BYTE   if ((next_byte = Serial.read()) == START_BYTE) {      byte bytes_read = 0;     while (bytes_read < CODE_LEN) {       if (Serial.available() > 0) { //wait for the next byte                if ((next_byte = Serial.read()) == STOP_BYTE) break;           if (tag[bytes_read++] != next_byte) return false;          digitalWrite(invalidCardled, HIGH);          delay(10);          digitalWrite(invalidCardled, LOW);                       }     }                  }   return true;     }   void printWifiStatus() {   // print the SSID of the network you're attached to:   Serial.print("SSID: ");   Serial.println(WiFi.SSID());   // print your WiFi shield's IP address:   IPAddress ip = WiFi.localIP();   Serial.print("IP Address: ");   Serial.println(ip);   // print the received signal strength:   long rssi = WiFi.RSSI();   Serial.print("signal strength (RSSI):");   Serial.print(rssi);   Serial.println(" dBm");   // print where to go in a browser:   Serial.print("To see this page in action, open a browser to http://");   Serial.println(ip); }

Topic by lonto81 6 years ago  |  last reply 6 years ago


Magnetmotor - really impossible or just supressed?

When someone starts talking about a so called magnetmotor than most people judge right away.Laws of physics, perpetuum mobile is impossible, magnets are static....We all know the limitations nature puts on us... That however did not stop quite a few people since the 1950's to build working magnet motors. Or, to be precise: To make the claim, show them and then somehow disappear. A few though seem to have survived and even claim to make good business. Securely closed machine, stellite tracking and 24/7 online monitoring. Either just a bad and long running hoax or a real attempt to keep a secret secret. Even the somewhat famous Yildiz motor showed off around the world only to disappear.Some like them, some don't. Either way all this sounds like the perfect conspirary theory LOL So lets take a look on what is fake and what might be real but missing some vital clues. You can find several good Youtube channels created by people trying to build a working magnet motor. Some of them have no problems to admit failure and still keep trying and updating their projects. Did long enough and you see two outcomes. The first is giving up or "realising" that it will never work. The second often seems like a user is getting some relly good results and is really close to keep the magnetmotor running. Both disappear without and updates or traces. Now of course this is just confirmation that it will never work, but then again: What if it did already quite a few times? Even Tesla had patents for a magnetmotor and so far none of his patents were a hoax. Although none of his patents allow to actually build a working devices without some additional info and knowledge. And that is the key that I am trying to get: The lost knowledge.How can a magnetmotor never work? That one is quite simple from the start. If a linear model won't work no matter where you start then a rotary version will fail as well. And if a linear version works, it has to do so far at least 5 segments and with preferably increasing or at least constant speed. Having said that and assuming you know a little bit about magnetism: Ever wondered about shapes of magnets?? The common types are block, round like a bar and those disk like ones, some even with holes. A less well known version is the ring magnet. You can look them up as well as their corresponding magnetic field geometry - or what is assumed to be the right geometry. To give you a clue: All those floating spinning toys use a ring magnet in the base and onother one in the spinner. In the center is a dead zone for the magnetic field that is far lower than further out on the ring. And the strnger outer fields also reach further - giving the entire spinner a bowl like area to float on, the spinning just stabilises it like a gyroscope. A similar flat disk magnet wouldn't have this indentation in the field but rather a dome like sphere. The ring just kicks a dint into this sphere if you don't mind the simpification. Similar changes in the field structure happen when you combine two or more magnets. One example we all know is stacking identical smaller magnets. And often we are suprised how much stronger two thin disk magnets are compared to a single. Distance however sets a certain limit. And take those hook magnets... Just a small ring magnet in a metal pot with core. Remove the magnet and just by itself it is far weaker. Why? Quite simple.... The same way a transformer core directs the magnetic flow, the metal part of the hook magnet provides a shortcut for the magnetic field - and in return all is much stronger ;) Now you have some more clues, but still there are tons of options for failure... The most common is the sticking effect. No matter how well you planned and designed in most cases you linear or rotary prototype will stall sooner or later. Even if started manually at high speeds some seem to run very long but once they slow down and stop it is obvious they always stop where the magnetic field won't allow the binding effect to be overcome.Wouldn't dare to say that I have a working magnetmotor, but I might have some clues you want to try if you decide to give it a try yourself. So how COULD a magnetmotor actually work? Like in the Perendiv examples all over the web, you could aloow a moving responder to the rotor. Like a piston the responder will be lifted in areas it would otherwise limit or reduce the speed of the system. Well designed only a few mm would b required but it also means wasted energy to move the responder. Then there is the nice way of modifying fields by adding magnets in different angles and polarities. Lets say towards the end of your stages on the linear model it is hard to overcome the binding effect from the end of the previous stage. The perendiv model would now somehow change the distances. But you can also add magnets to lower the binding effect ;) Like a ring or hook magnet you can shape the field and offer a stronger repulsin field or a lower binding force. Last but certainly not least is the option of adding magnetic metals like iron or somehow weirder ones like bismuth. So, do we have any examples of something very common utilising any of this? We sure do :) Take a speaker apart and you end with the cage, the membrane, the actual work coil and the magnet. We don't need anything but the magnet so take a good and very close look. What in the audio world is called a shield to prevent the magnet from messing with things close by is exactly the same as on a hook magnet ;) Only difference is the tiny gap for the coil. The magnetic field is directed into two paths, one by the metal core, the other by the inner enclosure of the magnet or the magnet itself. The coil operates in the area of maximum flux.Last hints... If you take two identical and strong magnets with north or south facing up then it is quite hard to push them very close together. But check what happens if you try the same wen both soth poles (or both north poles) are placed on a magnetic surface - if in doubt your standard fridge door. Suddenly you can move much closer together with the same amout of force (not considering the added friction!). And similar story for opposing configurations. Where in free air or on a table the magnets would just jump together, on a metal plated you can move them much, much closer before this happens. Copper pipe and magnet fun :) Ideally you would have a straight copper pipe and a cylindrical magnet that has a loose fit in the pipe. Aluminium pipe work too or even a roll of aluminium foil if you have nothing else. A magnet in the pipe will travel very slow down the pipe, friction is not an issue here. So what is slowing it down? The magnet creates a field in the pipe and through that the pipe generates electicity. And funny enough this electricity creates an opposing magnetic field in the pipe - the magnet slows down. Even if you glue it onto a wooden stick it won't rush through it. Trying to push it by hand and you feel the created resistance. The faster you push, the harder it is to push! If you made it all the way down here with the reading then I have to assume you fit into one of three of my categories. a) You are a total sceptic and just read it for your amusement. If so, then please don't post a reply with usual negative feedback, instead see it as the same fun you had reading it ;) b) You are at least curious and like to play with magnets. In this case take the above as inspiration to explore more ways to have fun with your magnets! c) You are more or less frustated because you wasted a lot of time and some money to build a magnet motor that just won't work. A and B might go on and enjoy the fun, C however might want to read very attentive now ;) If you take some indicator sheet for magnetic fields, like these funny green ones, and play with moving magnets then you see a very interesting effect on the "screen". The otherwise static field lines change chape and sometimes even seem to disappear or shrink. With a small rotor assembly it almost looks like flashes when the magnets move past each other. This effect is often totally neglected and to be honest I overlooked it for a long time as well. Being able to see how the magnetic field changes gives the thing an whole new dimension so to speak. Creating a magnet with a complex shape is difficult to say the least. Only ferrite or ceramic ones can be used and you would cut of machine them according to your desired shape and with regards to the orginal center of the magnetic field. So most people revert to the classic way of shaping by adding magnets of various types, sizes and amounts. Modern neodymium magnets make this trial and error process easier as there are many sizes and strengths available. Add a detector shield of suitable size and you have hours of fun time ahead of you. But doing so in any rotary assembly is next to impossible. So what did Yildiz differently and what was missed so many times? Yildiz took it a step further and not only provided "shunts" to create very strong magnetic field from the generated electricity but also a second rotor. Since we all start small lets focus on the basics first. Remember the hook magnet and speaker or the copper pipe? Some examples for shape shifting your otherwise static magnetic fields: 1. A magnetic metal "connection" from one (low in the armature) pole to an opposing (high in the amature) pole with cause the field from the "high" pole to "bend" towards the connected magnet. 2. A magnet with an orientation of 90° to the last magnet is the sequence will severely influence the field of this last magnet! This goes for either orientations! 3. Adding a non-magnetic "shield" around a magnet, like a piece of copper pipe, will not affect the static field of the magnet. However it will severely alter the field of the enclosed magnet when another magnet passes it! It will also affect the overal field during the passing as the moving magnet will also induce a field in the copper by affecting the field of the enclosed magnet! Thickness and lenght of the shield influence the strength of these effects. 4. In a simple perendiv motor design the bar that creates the attraction for the spinning part is a magnet too. Either a long bar type or two small ones with an iron or nickel rod between them. There is no need for a piston or something that drives the bar up or out of the way ;) Just use the right magnet at the right spot on your rotor to repell the bar ;) Mount the ar with suitable springs and you suddenly can have multiple stages on your rotor instead of just the usual one! Don't forget the moving magnet on the opposing side of the segment in question though as otherwise you still will get stuck. (Hint: You can place a small but powerful magnet in the center of the opposing bar ;) Just make sure you limit the springs movement so the bar won't be pulled closer)Ok, hold on now! Does a magnet motor actually work or not? I can only give hints and say the laws of physics as we know them apply to magnetmotors the same way as everything else. Unlimeted motion without supplying energy is not possible. Limited motion with adding or using energy however is still possible and real. The same is true for being able to machine, 3D print or otherwise manufacture at very tight tolerence and accuracy levels. This includes bearings or bearing systems with very little friction losses. Just check these floting and rotating magnet toys that look like a spindle. Only a tiny needle like pin makes contact with a glass surface - next to no friction loss. A proper and supposedly working magnet motor should provide more energy than what it uses - one way or the other. No law of physics lets us get around the fact that such a motor could only keep spinning if the produced power or motion energy is at least the same as what is required to make it move. Magnets lose their strenght over time, they are like a very slowly depleting battery. So, isn't it funny that all magnet motors so far that claimed to work also had the requirement to replace the magnets once the things fails to work or start? And if you leave a very strong neodymium magnet shielded from outside fields or magnetic stuff than your grandkids will still find a quite strong magnet. Do a little performance test with your new magnets, like how much force is required is required to lift them off a steel plate. Make the same test with the magnets once you played around extensively with them in your motor. Now take a spare magnet that was never used from the orginal batch and compare both against each other ;) If the motor would not use energy then why are the magnets depleted to a certain degree, realted to runtime and usage time? Wait a minute! Does that now mean it actually works? Lets just say energy is certainly used. We only know similar effects from electromagnetic systems. But did anyone ever really check how much actual energy is in magnetic field generated by a non electric magnet? Get a good sized N52 neodymium magnet and check how much force is required to pull it off a steel surface. Now try to get the smallest sized electromagnet capable of that force and check how much energy it consumes at the level that equals the pulling force of the N52 magnet ;) Makes no sense to even try to compare these you will say now. I just say energy is energy and we were formed to only think in certain ways and don't even try silly things like this ;) To keep the fun up let us imagine we would actually have a similar energy available than what our electro magnet would require. In reality more because we wouldn't have electrical or flux related losses in the metal around the coil. Or is the imagined reality, no clue ;) If true it would mean even a motor with very bad efficiency would be able to create huge amounts of torque. Well, torque is basically acceleration. Which would mean our motor would not just be happy to spin, it would speed up until the bearing fail or the thing is ripped apart. Imagine a dental drill of that size and weight suddenly falling apart at full speed... Every example of motors claimed to be working, that are not fakes, seem to be happy no matter what the load is. It the thing turns a generator than it would have to slow down a bit with the increased load but they don't. With no limited factors otherwise this makes them a fake. Even a perfect motor would have to react to load changes.... Don't we agree that the stronger the magnetic force or field in a conductor the stronger the resulting magnetic and opposing field of the conductor? We use the difference to either drive a motor or take out electricity... But if you take the "open" shielding of a magnet in a changing field than the influence of the shield on the overall field gets stronger with stronger field changes. And properly desinged and orientated they would actually double as a natural limiter for the rotation speed. Once the electrical energy in the shield becomes too strong it will be able to cancel out the field of the enclosed magnet...If we assume a magnet motor is really possible and works with the intended output to keep it spinning or even take energy out: Then what would be possible downfalls that stop this thing happening in everyones garage? We can explore the stars but so far no one bothered to invent anything to visualise magnetic field in a 3 dimensional way other than by simulation. No realtime and true observation like this. The few working technologies that exist rely on sensors, interpretaion and filling in gaps. But imagine something like a detector shield as cloud! And then even better with selctive spacing to get a realtime view of where exactly the field lines go. All we can do is forget our teaching and try it out anyway ;) If by some mistake a magnet motor would really work right away, then chances are high the inventor would wonder why that thing takes off like mad and how to stop it. Unless well prepared it would certainly end in the destrution of the motor. But the inventor would know what to look for in the next prototype. The logical conclusion would be to the couple the energy taken to the speed while physically limittin the free load speed. The other one would be the design the electrical generator around the and within the motor. To even get close to this point you would have to spend endless days and nights working on finding a solution. The closer you get the more disappointment when the final model still fails to keep spinning for more than a few hours. Most people will then accept defeat and move on... Still not saying it actually works but if you made it to this point in time where it could be easier to move on and do other things:Ever wondered what would happen if you "shield" a magnet with a coil? Of course nothing would happen as we know. But try this in some fixed assembly that allows you move another magnet through the field of the shielded one. Perferably witha force gauge or some option to read out the energy required to move it through the various stages of the field. See what happens if you short the coil or add a resistor to it ;) Now if this coild is able to produce electricity then the more we use the more the effects on the required force would change. What do you think would happen if you combine common coil relations of electric motors to a "coil shielded" magnet motor? Right, all these coils would interact with the magnetic fields of the coils they are connected to... And through that with the overall field surrounding the enclosed magnet..... I leave up to you to imagine how these interacting coils could provide "resistance" or "acceleration"/"surplus electricity"...Like they say: You can only find out if you try ;) To keep up the positive thinking: A permanent magnet just sticks to any magnetic surface and does so with the same force. But the real energy loss in terms of getting weaker can almost be neglected. Any electromagnet capable of the same holding force woul require ongoing energy supplies to keep it up. It is using energy the same way the permanent magnet does! The difference is the permanent magnet is not seen as anything that would provide us with energy.... And if it can't provide energy other than passing through coils then why the heck does it keep sticking to the fridge year after year? It does require energy to keep this weight up doesn't it, even if you add a thin teflon disk and oil to reduce friction? ;) No magic, no "free energy" bogus, just plain physics viewed from a slightly different angle than what we learn in school ;) Have a good laugh and a good beer, then read it again and just consider some of the things here that are not mentioned in any literature about magnetism that we commonly use. Now I got you thinking, didn't I ? ;)

Topic by Downunder35m 3 months ago  |  last reply 2 months ago