Questions answered, and pictures added
@airuno2l
Yeah, it’s rather large, it is 48 inches from bumper to bumper and if I remember correctly will stand roughly 20 inches from pavement to roof. I’ll put pictures at the end of the comment.
Apparently I can make a filter of sorts out of a resistor and a capacitor wired in parallel to each other, and wired in series to the tilt sensor which will eat up short pulses from the sensor and only let sustained contact pass through… I should have thought of that as I use the same thing in other applications, namely Digital Command Control (DCC) for model railroading.
About using a micro controller in the project, that adds a whole level of complication that I was trying to avoid. With the RC straight to the SyRen, there is really nothing to program, just a couple DIP switches to flip. With a micro controller added, I am going to have to get someone to write code for me as I am horribly terrible at doing so myself… How would the RC interface with the micro controller? It may be the easiest way for some but I am not sure if it is worth the effort for me.
The way this truck is eventually going to be built, the seat from the original wheelchair/mobility scooter will still be able to be lid into it’s place through the center of the truck bed. Alternately, when the seat is not in place, a fifth-wheel trailer hitch will go in it’s place to A.) look accurate in scale detail, B.) hide the otherwise obvious wheelchair seat post, and C.) allow me to tow a fifth-wheel trailer behind the truck. Either a single child or adult could sit in the seat on the truck with their feet on the ‘running boards’, or the trailer could be put on and maybe 2 or 3 children could sit on it. Before I took the original scooter apart, I did play around on it with mostly-dead batteries and was able to go practically anywhere in my 2-acre yard with it, bumpy grass, some soft spots, inclines I would have expected to go over backwards on (if the old batteries were charged to their absolute max, the chair would pull my nearly-200-pound carcass up the ramp in our “bulkhead”, which rises 6 feet in about 12 feet of travel… If I am thinking right, that’s a 22 degree incline!) so it shouldn’t have an trouble pulling one or two hundred punds behind it on flat ground. In pavement, I see no reason why it couldn’t pull much more, if careful about wheel slip and current etc…
As for the speed governing, here’s where I am coming from… I doubt I will be letting many kids ride AND control it at the same time, but I have s nephews all under the age 13, and they are going to think this thing is rather epic and want to at least be able to drive it. These same three children are the ones who killed the batteries in the wheelchair at least 4 times “testing” it for me Mind you, they had NO speed control and just hardwired the two tired old batteries directly to the motor. When they needed to stop they’d just turn sharp and tip up on two wheels and put their foot out to balance, with the third wheel just spinning in the air. These kids are crazy, yes My concern is, I REALLY don’t want anyone rolling the thing over on it’s side. I hope to have a NICE paint job on it eventually … Hot rod quality metal flake and clear-coat, etc.
@birdmun, sorry to take so long getting to you. You bring up a very valid point that I hadn’t actually considered, being easily able to adjust top speeds at the microcontroller… How easy would it be to do so ‘on the fly’ without hooking up to a PC or programing board or something? What’s the likelyhood I could use something like the Atmel Butterfly that has the digital LCD screen and actually be able to move through a menu system and adjust things? I can’t imagine who I might get to write me a program for that, though … though I do have a Butterfly laying around somewhere . . . but no way to program it anyway so … square 1 again.
Anyways, hey really, thanks for responding to my thread! I really need to get some conversation going about this thing to help motivate me to get it done! I have tractor shows I want to bring it to this spring/summer!
Mike, at DieCastoms
Ten Year Old Cameron, and the truck body:
http://i3.photobucket.com/albums/y89/Valkyn/QuarterBigfoot/IMG_20110918_115101-1.jpg
Side View of Truck Body sitting on a mover’s dolly / hand truck
Note that this is just ‘for looks’ and will not be built this way. The front wheel and tire is simply leaning against the dolly.
http://i3.photobucket.com/albums/y89/Valkyn/QuarterBigfoot/IMG_20110918_145317.jpg
3/4 view on the mover’s dolly
http://i3.photobucket.com/albums/y89/Valkyn/QuarterBigfoot/IMG_20110918_145340.jpg