IljaPlayerP Posted September 10, 2006 Report Share Posted September 10, 2006 Hi to all of you guys!i'm new as you can see and i don't know so much about electronics, so i want to ask somethin'I have an RC Car it's small (12"x6") and it uses 6xAA 1.5V bateries (9V together)And i want to make it go faster...any ideas, do you guys know how can i make my car go faster? Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 10, 2006 Report Share Posted September 10, 2006 Hi Ilja,Sure we know how to make your electric car go faster:1) Replace its motor with a more powerful one. It will probably use a higher battery voltage which will burn out the existing motor. The new motor will be bigger and won't fit.2) Replace the battery with a higher voltage one. The radio receiver will then need a circuit to reduce the voltage down to the same as before.3) Replace the electronic circuit that drives the motor because the new motor's higher power will burn out the original circuit.4) Replace the wiring between the electronic circuit that drives the motor, and the motor.5) Use larger battery cells because the original cells won't last long with the higher power to the new motor. The bigger battery won't fit.Simple, isn't it? Try to make a real car go faster. Quote Link to comment Share on other sites More sharing options...
IljaPlayerP Posted September 10, 2006 Author Report Share Posted September 10, 2006 Well that would be not so simple...and i think i can't put other motor in it...how to push this motor to be more powerfull? Quote Link to comment Share on other sites More sharing options...
Guest nanop Posted September 10, 2006 Report Share Posted September 10, 2006 Try using/ playing around with different gears? You'll have to trade speed for torque or torque for speedor tires?different frictionTry varying the capacitor that's in parallel with the motors?No idea what those caps are for, but who caresOr just short some resistors?Have FUN!!!!! ;D Quote Link to comment Share on other sites More sharing options...
Guest nanop Posted September 10, 2006 Report Share Posted September 10, 2006 Or just take off everything that you see as unnessacary!!!They weigh the car down and slows..... them down.......................[move] ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D ;D[/move] Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 10, 2006 Report Share Posted September 10, 2006 Well that would be not so simple...and i think i can't put other motor in it...how to push this motor to be more powerfull?There are a lot of things to consider to make an electric car faster. They are not so simple:Using a battery with a higher voltage will push the existing motor to be more powerful. But the higher voltage will burn out the motor, its electronic drive circuit and the rasdio receiver. The higher voltage will cause the motor's current to be higher, therefore the battery won't last as long unless its cells are bigger than now. The bigger battery will weigh more and cause the new speed to be less than you think. Quote Link to comment Share on other sites More sharing options...
Guest nanop Posted September 10, 2006 Report Share Posted September 10, 2006 What's the capacitor for, that's in parallel with the motor? Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 10, 2006 Report Share Posted September 10, 2006 What's the capacitor for, that's in parallel with the motor?Permanent magnet DC electric motors on RC toys usually have two 0.1uF ceramic disc capacitors connected from each wire to the metal case. The capacitors arrest sparks from the motor's brushes. The sparks would cause radio interference so the RC doesn't work. Quote Link to comment Share on other sites More sharing options...
IljaPlayerP Posted September 10, 2006 Author Report Share Posted September 10, 2006 And can i put 6xAA 1.5V 1800mAh bateries instead of the 750mAh bateries?Will this damage something or it will last only longer? Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 10, 2006 Report Share Posted September 10, 2006 A 1800mA/hr battery's charge will last 2.4 times longer than a 750ma/hr battery's charge.The cheap little motor will burn out 2.4 times sooner if you run it at max speed all the time. Quote Link to comment Share on other sites More sharing options...
IljaPlayerP Posted September 10, 2006 Author Report Share Posted September 10, 2006 Hey, look what i found on net, but i don't really understand this guy...can you explain to ma what is he trying to say???MAKE YOUR CAR FASTER, WITHOUT ANY UPGRADESFor electric cars, break-in the electric motor beforerunning the car. Break-in seats the commutator brushes andlessens the friction between the armature shaft and the bearings or bushings at both ends of the motor.The result is a faster and more powerful electric motor.There are many "techniques" for breaking-in a motor. Mypersonal guideline is to break in the motor by using a 3-voltsupply and running the motor for 2 hours or until the brusheshave "seated" or conformed to the shape of the armature.Make sure you keep the motor cool during the break-inprocess. This should be worth 10 - 20% increase in power.==========================================so did you understanded? Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 11, 2006 Report Share Posted September 11, 2006 He says to take a brand new motor and runit slowly with a 3V supply and cooly for 2 hours. He says then the brushes will make better contact, the bearings will have less friction and make the motor more powerful. I doubt that you would notice any difference. Quote Link to comment Share on other sites More sharing options...
IljaPlayerP Posted September 11, 2006 Author Report Share Posted September 11, 2006 OK, thanks. Quote Link to comment Share on other sites More sharing options...
IljaPlayerP Posted September 11, 2006 Author Report Share Posted September 11, 2006 hey audioguru i considered that changing the whole engine would be the best option for me...so i will go to an electronics shop and ask them if they have bigger, stronger, more powerfull motor...and if they do, i will put it in the car, and it will go faster, no?i wanted to push this one to the max, and if it burned i would change it, but i'll just put a new one, and if something goes wrong, i will still have the orginal motor, right? :)So thanks to all of you guys for your time and knowleage...and especially audioguru for the fast replies :)see ya! Quote Link to comment Share on other sites More sharing options...
audioguru Posted September 11, 2006 Report Share Posted September 11, 2006 hey audioguru i considered that changing the whole engine would be the best option for me...so i will go to an electronics shop and ask them if they have bigger, stronger, more powerfull motor...and if they do, i will put it in the car, and it will go faster, no?A bigger motor won't fit.The battery would also need to have more voltage and more current and also wouldn't fit.The electronics and wiring that drives the motor would also need to be re-made to pass the higher current.Then the car would be so heavy that it might not go fast.i wanted to push this one to the max, and if it burned i would change it, but i'll just put a new one, and if something goes wrong, i will still have the orginal motor, right?Of course the motor will burn if you try to get more power from it than the amount for which it was designed for. Quote Link to comment Share on other sites More sharing options...
ante Posted September 11, 2006 Report Share Posted September 11, 2006 The motor does not have to be bigger to be stronger, the magnets and the armature winding decides the torque and power. You can re-wind the rotor (armature) with less turns of a greater gauge wire to get more power. It will of curse consume more power from the batterys too! ;) Quote Link to comment Share on other sites More sharing options...
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