4.5v Zipzap Dragster!!!
 

Ok! I got tired of waiting for the F&F kit and since I had 3 1.5v batteries left over from my lap timer project I said What the heck!
I'll go for the zipzaps land speed record!!!

Read all about my Zip Dragster at my site!!! Yet another CHEAP project!

Cheap Top Fuel Pro Stock zip Dragster!

enjoy :D

That is a great mod !!!
I will have to try that soon.

Re: 4.5v Zipzap Dragster!!!
 

Damn YOu do get what you pay for, My site is locked because it exceeded the data transfer limit....What does one has to do to find some GOOD free service in this life! :(

Dude, once again another reason I love this board. I've been waiting forever for this mod on the other boards. Finally started spending my time over here and wouldn't you know it....all questions have been answered thanks to you. You da MAN!!!! I'll show pics of mine when I'm done. Very NICE MOD!!!!

two thumbs up
 

Kudos!!! Awesome job!

Now...are you going to be able to recharge those babies, or will the money you make blowing everyone's doors off pay for the fuel? :D

Re: two thumbs up
 

:D
Thanks guys, :( sadly these are throw away NOS bottles, no recharging unless you guys come out with a rechargable battery pack! ;) I did work last night on making the battery pack easily swapable from the circuit, SO if someone can find rechargables this size they can be easible removed and pluged back in.

I used IC socket pins to attack it to the circut I'll have pictures SOON!

Very nice, sir. Very nice indeed. So, does the stock battery las tlonger on a charge since it isn't pushing the car anymore?

In theory yes, the car battery will only have to worry about the constant 100ohm resistor load and about turning the wheels. Again, let me caution you guys on running this over a long period of time, the pager motor is probably rated to handle 1.5v and we are really pushing it to its limits at 4.5v, hell I'm surprised my has lasted this long! This should only be done as a last resort to prove ones manhood on the track..... :(

I know that the extra speed and power could be intoxicating and could cloud ones judgment but we are all professionals here...right...we can control ourselves.....
;)

You've brought up a good point. Does this configuration work with another regular zip battery? I'm not interested in the 4.5v. I just want to get the battery current going directly to the motor. That in it's self is a HUGE boost.

I've had a similar configuration sitting for a few weeks now. Just the mod without the reverse though. How I've managed to charge the second batt is solder a female connect that fits my old rc plane charger. Charges in seconds and runs for atleast 20 minutes. If you have old ac charges for your old regular RC's, take the connectors off the old batteries they use to charge and solder them on your mini rc' batts. Since most were made to charge the larger batteries, you'll have to be careful with charge times. Only leave them on for under a minute. Slowly increase the times if your run times aren't long enough.

Re: Re: 4.5v Zipzap Dragster!!!
 

Heh, well shrinking file sizes down is the best way to get the most out of these free sites. I hate geocities, but tripod isn't bad.


BTW: that car is insane!! i bet if you turn the slightest it will flip over 5x with that crazy engine/batt setup :eek:

I don't see why not, the transistor is just a switch. You can try this yourself without the car. you can use a regular AAA, AA or any 1.5v source to trigger the transistor, and the motor should turn! In fact I encourage you guys to try the circuit outside the car first using this method, I usually hook an LED and corresponding resistor. I had no luck with the voltmeter because the damn thing reads voltage regarles of the transistor being on or off. Most be some inner working of transistor or what not the LEDs or motor will not tun but the volmeter picks up voltage....I'm not an EE so I can't tell you why this happens. just that it drove me nutz for a while until I noticed all my transistors were behaving this way! :rolleyes:

:D I try not to turn much, I did hit an uneven tile on the floor and the thing jumped from the ground flipped forwands landed upsidedown and flipped a few times....

This is VERY nice and very simple too. I have added your schematic to my files and plan to do this myself as a way of running more power around the PCB to the motor. Now, if you only had an old playstation 1. They have a very tiny motor inside that would take the juice from your setup and are so efficient as to be insane. They are slightly bigger than the usual motors used in these cars, so some chasis modding would be needed. But, it would more than triple run times and torque.

A worthy addition...

Ok, forgive my (ignorance?), but why in heck is there a motor in a Playstation? Was it responsible for spinning the CD-ROM? If so, couldn't you get one from any old disc drive? Just kinda lost here....but triple torque sounds good.

Maybe he's talking about those vibrating controllers!!! :D
Anyways, now we can look at faster or high torque motors and not worry if we have the juice to power them.