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Go Karting
#21
Thanks, DP.
A wheel will skid if I don't have one - I understand that now. How bad will that be? Will it just screech and maybe shudder a bit, or will it actually make me lose control of the Kart or put deadly strain on the engine/body/gears/axles?
f only life let you press CTRL-Z.
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Freebasic is like QB, except it doesn't suck.
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#22
Quote:Will it just screech and maybe shudder a bit, or will it actually make me lose control of the Kart or put deadly strain on the engine/body/gears/axles?

That depends on the width of the cart and the weight of it. A wider cart will make the wheels spin at very different speeds, whereas a thin cart (wheels close together) will not have as much of a difference in between wheel speeds.

Also, the weight. The wheel may just skid if the cart and you are light, but if it turns out quite heavy, then the wheel will have a lot of grip and may cause damage to the frame, axle or gears.

You may be able to get a small drive train at a scrapyard, consisting of a drive shaft (leading from the engine) to the differential which is in a case, which branches to the wheels. This is found on most rear wheel drive vehicles, although you will need to find one that fits. The good thing about this is that you never even have to see the diff, as it is all wrapped up and linked already.
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#23
Wait a second - you realize that only one wheel is being powered? The back-right. The back-left is compeltely seperate and spins on it's own. The back two wheels are not connected, they spin seperately at whatever speeds they want - so wouldn't that make a differential not required?
f only life let you press CTRL-Z.
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Freebasic is like QB, except it doesn't suck.
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#24
Read my post...

Separate wheel spinning is the factor making the cart run around in circles


Lock the rear wheels togheter...
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#25
Have you decided that you myst have four wheels? or else
use only one back wheel in the middle (knowing nothing about
car physics)


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#26
Quote:Wait a second - you realize that only one wheel is being powered? The back-right. The back-left is compeltely seperate and spins on it's own. The back two wheels are not connected, they spin seperately at whatever speeds they want - so wouldn't that make a differential not required?

This would work as well. Not a very good design principle, but it would definitely work for your purposes. I'd just be concerned about getting the wheels mounted firmly when you don't have them joined.

And with regards to the 'screeching', whether it screeches or doesn't, that's the best case scenario. The more likely outcome is that the car refuses to turn at all -- the rear wheels keep pushing it forward and the front wheels slide helplessly along. (straight ahead, but in the 'steered' position.

I might look more into the tri-wheel approach... either as Marvin stated, or with a single front wheel to steer.
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#27
OK, then, so now I have one wheel in the front, for steering, and two in the back. It'll be way too much of a pain to lock them together, so they spin seperately.
f only life let you press CTRL-Z.
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Freebasic is like QB, except it doesn't suck.
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#28
Quote:OK, then, so now I have one wheel in the front, for steering, and two in the back. It'll be way too much of a pain to lock them together, so they spin seperately.

In effect, a motorcycle with a side car. Sounds good.
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#29
The lawnmower is at my grandparents' cottage, and my mom forgot to bring it home...crap! Guess it'll have to wait. I can start on the body first, though.
f only life let you press CTRL-Z.
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Freebasic is like QB, except it doesn't suck.
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#30
good luck man! :lol: Big Grin
cant wait to see how it turns out. :bounce: :bounce:
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