Mental Idea Accelaration And Top Speed!

scottyboyfun · #1 01-06-2003, 08:35 PM

Ive had a brill idea, we could have a car with 2 gearings, 1 for extreme acceleration, and the other for top speed!!!!!

It would work like this-

Get a purely torquey motor and torque gears, put these it, then instead of having a reverse, have another motor,!

look at the diagram!!!!

U would have to modify the axle so that both sides have a gear, also replace the pin which the idle gear sits on, so that you can have an idle at both ends, what do u all think?

Nathan · #2 01-06-2003, 08:41 PM

The torquey motor spinning only one wheel would produce X-treme donuts though.

t-squared · #3 01-06-2003, 08:56 PM

I think its supposed to be a modified axel, so both wheels are still joined and not seperate.....

RC4FUN · #4 01-06-2003, 09:09 PM

LOL! I thought of the same idea...but I didn't wanna go into spending the time with the project.

It is a nice concept tho. I wanted to do it to stop the car from doing donuts all the time.

JTM · #5 01-06-2003, 09:25 PM

except the motors dont only go half way through the chassis they r the complete width. also youd have to lengthen it to allow for the extra motor.. unless u mounted it on top like the dual motor mod that is already out.

bill · #6 01-06-2003, 09:37 PM

Interesting idea. So who's going to try it? Maybe you can use two motors with an axel that isn't joined together. Then you can use the DigiQ variable speed/steering PCB. Hmmmmm....

scottyboyfun · #7 01-06-2003, 10:07 PM

What I meant was to have a SINGLE JOINT axle on which both gears would b connected, one at either end with their own gearings, AS T-SQUARED said, and the other motor woul b mounted on top.

So essentially we have 2 gears!

Oh bill lol! I thought u was banned lol!

Nathan · #8 01-06-2003, 11:17 PM

If the axel were solid, then one motor will drag the other! But it may be insignificant in which case this could be done

#9 01-07-2003, 01:34 AM

Exactly, you would be limited as far as top speed goes by the slower motor with slower gears. The higher geared motor would be working to spin the other motor as well, and you'd actually lose top speed. Also, since both sides of the axel would be trying to spin at different speeds, your motors might get screwed up and burn out.

I recommend dual motors, dual batteries, or both. Not mix and match.

scottyboyfun · #10 01-07-2003, 06:41 AM

I know what ur saying, only way we'll all know is by trying it out! but we'll need a real transmitter for the range it will cover.

t-squared · #11 01-07-2003, 07:02 AM

shocon2k, he's not planning to run both motors at the same time (I think...

). I think he'll run the motor with high gearing and high troque etc. when he presses forward, then when the car's up to speed, he'll press reverse to use the other motor with is geared for high speed to make it go even faster.......

scottyboyfun · #12 01-07-2003, 07:26 AM

Thats it t-squared!

binaryterror · #13 01-07-2003, 11:09 AM

And there is friction to turn any motor that has no power to it. and if the throttle Trim (used on bigger proportional RC's) was off youd be screwed.

Also note in his drawing youd need one clockwise motor and one counter-clockwise motor. And definately youd need more contact points and lengthen the motor bay to allow this.

#14 01-07-2003, 12:10 PM

At least binaryterror knows what I'm talking about...

if you have 2 motors engaged to your axel at all times you will create friction, end of story.

scottyboyfun · #15 01-07-2003, 12:23 PM

I don't think the engine bay would have to be lenghtened, look at the pic , ive placed a motor on top just so we can get a rough idea, I agree that there will be friction, but it may or may not b enough to make this mod worthwhile or not.

Wiring the other motor in will not be hard.

Just it all depends on that friction force of the other motor now.