Meathead316

Awesome! Looks well fast!

20-30mph O_O I could always gear mine down if its too fast, or use less volts. Wont know till i build it tho. Hhhmmm I wonder how much weight it could carry... Did you ever try riding on yours deadmeatuk? I'd imagine the motor wouldnt be able to handle it and would burn out before you moved an inch...

So it will make no difference in performance with 2x6v or 1x12v? Im just thinkin it will be less faff only having to charge 1 battery instead of 2. Speaking of chargers, any recomendations? Pref an auto cut off one thats good for batteries of different voltages should a future project require a smaller/larger lead acid battery Do you have a build thread for the ride on you made? What sort of speed did you get out of it? (Obviously dont want it too fast, a little over walking speed would be good)

I guess all transmitters are similar but each put together slightly different, it will be just luck of the draw if the one i get allows me to rotate a stick with minimal butchering of the casing As for forward and reverse i think each motor will be linked to 2 relays and 2 switches, one for forward and one for reverse. A bit of a faff as far as wiring goes, but also quite simple

Whoops forgot to ask... DeadmeatUk Why did you suggest 2 x 6v as opposed to 1 x 12v battery?

Yeeeeaaah so that'll save me a few quid then, and you guys have learnt something new too Ok as for the running of a kids ride on vehicle, whats a "good" battery life? Obviously i can easily up this by gettin a higher ah battery, but they do cost more.... I was kinda aiming for a good 20-30 mins on a full charge, do ya recon that will work with 2 x 6v 12ah batteries as suggested? (Keeping in mind a tank has two motors) I cant wait to get started, gotta finish my current project first though... But its all good as i want/need a couple of weeks to plan it all out and source parts.

Whoa loads of replies! Ok so nimh is out, lead acid is in. Drills motors appear fit for purpose which us good. I wasnt gonna use the drills own trigger, i was gonna use a 12v automotive relay with a small lever switch to trip it via a servo as mentioned. As for the transmitter does anyone know a uk stockist that sells the type i need with reciever for around

Sorry for sounding like a total noob! Some of the questions ive asked i kinda assumed what the answer was, but i want to be sure, becausr like you said i dont wanna throw loads of money at this and then be scratching my head wondering why it doesnt work. Its true that i dont know the fundamentals of r/c control. But thanks to you guys i know more today than i did yesterday

I wasnt lookin at a trigger and wheel receiver, i was lookin at this one: http://www.modelsport.co.uk/core-rc-code-2.4ghz-2-channel-fhss-sport-stick-combo/rc-car-products/38218 As for the drill being variable speed, im not sure as i havent bought it yet, but if thats a problem i could just wire the power directly to the motor That link to the reciever is no good to me im afraid as it doesnt seem to be a UK stockist... Thanks anyway To begin ill use what ever reciever i can get cheap, and once working, try to find a more suitable one Im still unsure whether or not servos self centre when you release the trigger. And whether both channels (with the reciever i linked) can be a servo (as opposed to a servo and a drive motor)

Ok right i think i get it... So running 12v through it is a no no Connecting drive motors (drills) to it also a no no So the switch method it is A few more queries if i may. Can i use a steering servo in channel 1 and another steering servo in channel 2? If i can then i can see how it will work Do these servos re centre them selves one i releasr the control stick thus it will stop pressing the switch powering the drill Do i "need" a special controller? Or will an up/down left/right one work?

Waaaaait a minute Arent servos used for steering cars?? Shouldnt i be lookin at using a drill to replace the cars drive motor?

Ah cool. Im still confused with the servo. I want it to just go one way when i press up and the other when i press down and to stop when i dont press... Cant i take the brain (signal wire etc) from a servo and splice it to a drill? I msg deadmeatuk, hopin he gets back to me

So i cant use a standard transmitter (say for a car)?

Riiiight, sounds complicated O_o but do servos know how to do all this clever stuff on thier own or do they need to be told? Do you "need" a signal wire? Is there not a way to just reverse the current?

So i cant just use the drills in place of a servo? I think i understand the micro switch idea. Have normal servos have the arm hit a switch to make the drill go, the drill will essentially be a seperate circuit. Do the servos go back to their start position as soon as you release the trigger? Surpress the motors? "Dirty"???? Also why does a servo have 3 wires? + and - is obvious, but whats the yellow signal wire all about?