One possibility is that you could increase the cooling somehow, and
You could possibly purchase replacement magnets of higher strength,īut this brings other problems with back emf and so forth. You would need some serious form ofĬonductor, and each extra turn you add will increase the your burstĪs 'Glyph' has said, the material used by the manufacturers will haveīeen chosen to suit their intentions, and it will almost certainlyĪlready be magnetised to saturation, or near saturation. You will not get the sort of current you want unless you put several However i think that fortunately the current only needs to be presentįor a short time, thats why its called 'zapping' It may very well assist the process to heat the magnet under attentionĪs 'Dean Huster' has already said.
You cannot do this to all the magnets while they are in the assembly. Then you are not going to be able to deal with each magnet separately. If they will not give you permission to take their motor to bits, If you're really hellbent on reengineering you're motor for enough strength and speed to lift a model helicopter then type in "Cd-rom motor" into google and you'll find a community of individuals that modify Cd-rom motors for that task. Magnetic replacement is probably the most viable option for increasing your motor strength. But at this point you're reengineering you're motor. The more current you apply the stronger you're motor will be. so while the motor is running the electromagnetic field is constantly applied. You can get around the saturation problem by using an electromagnet instead of permanent magnet. Its doubtful that you can magnetize your magnets to a much higher degree than was set during their manufacture unless the motor you're using is very old and its magnetism has decayed. Neodymium magnets are magnetically the densist commercially available magnets. but in order to obtain maximum affect you'll need to heat the magnet to above its "Curie" temperature to reset all the magnet domains.Īnother issue is that the material the magnet is made of will have a saturation density above which it cannot be magnetized further. you'll need to take apart the motor and apply the field to each magnet seperately.Īs optikon said heating the magnet and then cooling it while the field is applied will help to magnetize it. Simply wrapping the motor with some wire and running a current through it will at best magnetize only one magnet properly while at worse reverse the polarity of the other magnets. The problem with simply applying an electromagnetic field is that you have to apply the field in the same direction as the magnet you're trying to strengthen. Obviously you have to get the shape and orientation right for this to work. It might be more straightforward to purchase neodymium magnets (ebay has loads of them) and replace the magnets inside the motor with those magnets.
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