Utility cart?

[Doc Sprocket]

A lot of what's going to work for you would depend on terrain. Sometimes there is such thing as too much tire floatation- like wide tires on snow. Times like that (and mud) where it can be advantageous to have a tire that will dig down to a firmer layer.

Either way- I want to see this thing take shape. I love this kinda stuff!

(My tire comments with regards to gearing were a commentary regarding diameter, by the way- not width)

 

[carter]

I know big tires are important so that this thing will actually move, but I will need some grip too.

 

[Doc Sprocket]

We may be thinking in opposite directions here- I'm not suggesting HUGE tires. Aggressive, yes- but not massive.

 

[carter]

Well the tires will need to be big for there to be enough speed to get this thing anywhere, however the tires also should be aggressive and wide, so to get more contact surface on the ground, I'll probably under-inflate a tad to help with grip if that's ever needed.

 

[Doc Sprocket]

How much speed you need? Assuming you're going to use a multi-speed transmission, you should be able to get it to where you need to go.

You could even do something really trippy, like include a transfer case from a small 4x4. This would buy you a high and low range, and leave the door open for 4wd in the future.

 

[carter]

I like the way you think. I would be thinking only like a regular walking pace, maybe slower, I just want to make it so that kicking it into neutral and pushing it is the only way to move it.

 

[Doc Sprocket]

Good stuff... One step closer to the plan materializing!

 

[carter]

I could probably just use the pulley input for the transmission to fine tune the speed of it, but I'm thinking I'm going to want to go with some big pulley's to minimize slip, maybe 4"-5" on the engine, and maybe a 12"-15" on the tranny so that it won't slip once it grips, I'm thinking a decently wide belt with a tensioner like maybe 1 1/2" wide, I figure that should off all of the grip that would ever be needed, and it might slip enough to not bog down the motor if it goes under really hefty load.

 

[Doc Sprocket]

Frankly, there's nothing stopping you from using 2- or even 3- sheave pulleys. More belts, more grip.

 

[DaiSan76]

imo

 

[carter]

Frankly, there's nothing stopping you from using 2- or even 3- sheave pulleys. More belts, more grip.

Again with that helpful insight, Look at you go.

And those were actually some tires I was looking at. except a no-name brand that sells them cheap. luls

 

[Doc Sprocket]

Again with that helpful insight, Look at you go.

What can I say- It's a topic that interests me. I have thought about it in the past, and have several ideas to put forth...