6X 775 - 6X 1.625" Drive

[pwnageNick]

Because I don't design outrageous things enough...

each drive side is 8.03lbs with everything shown (only thing that should be missing is the M4s to mount the 775s. Didn't design out the full frame because meh.

Ratios is a 12:100 off the 775's with a 24:24 spacing ratio down to the wheel.
I chained the wheels together before that gear spacing so that the chain did not have to be routed up after every wheel for ground clearance;
so there is a stage of gearing down to each individual wheel.

Feel free to tell me how ridiculous this is.

Sorry for the large pics

[saikiranra]

Needs smaller wheels.

[bkahl]

Would you consider making custom wheels if they're that small?

[Gregor]

Originally Posted by bkahl

Would you consider making custom wheels if they're that small?

Stop being so negative, let him do what he wants

[Chak]

I think you need moar power .

[cbale2000]

What is this I don't even...



Seriously though, with so little ground clearance, couldn't this get stuck on something as small as an uneven spot in the carpet?

Also, you missed a golden opportunity to make a 38 wheel (19 wheels x 2 sides) gear-drive.

[pwnageNick]

Originally Posted by cbale2000

Seriously though, with so little ground clearance, couldn't this get stuck on something as small as an uneven spot in the carpet?

1/2" ground clearance, there's been lower.

[asid61]

Why is there a pox of these going around? This is the 3rd such chassis thingy I've seen in the last week.

In any case, looks good. The weight in particular is fantastic. The only thing I would question is the use of 775pro drives due to availability and effectiveness, but apart from that it actually looks quite solid.
Why socket heads over buttons or flatheads?
What does the free speed look like?

EDIT: I always look forward to your models. They tend to be very innovative and pretty!

[RoboChair]

Originally Posted by cbale2000

What is this I don't even...



Seriously though, with so little ground clearance, couldn't this get stuck on something as small as an uneven spot in the carpet?

Also, you missed a golden opportunity to make a 38 wheel (19 wheels x 2 sides) gear-drive.

Our 2013 robot had less than 0.25" clearance above the floor and the pan extended forward and behind our wheel base >_>

Yes carpet was an issue. But by comparison this has loads of ground clearance, and even more importantly it has leads in the front and back.

[Bryce2471]

Why use plate and standoff construction only to cantilever the wheels? Is the easier wheel change worth more difficult bumper mounting and greater stress in the structure?

I don't mean to poke at something that is meant to be slightly whimsical. But if there is a legitimate reasoning, I would just like to know what it is.

[Greg Woelki]

Originally Posted by Bryce2471

Is the easier wheel change worth more difficult bumper mounting and greater stress in the structure?

Yes, since the wheels have to be replaced between every match .

Nick most likely used plates instead of a piece of extrusion because it allowed him to maintain a decent amount of ground clearance. In order to do the same with a tube you'd end up tacking little plates on anyway, so you might as well simplify it.

[Richard Wallace]

Such pockets!

[Eric Scheuing]

Can we get a render of just the gearbox itself?

I'm also concerned with the gearbox mounting method. Would there be any issues with the fasteners bottoming out on each other before you can get a solid joint?

[ASD20]

Originally Posted by Richard Wallace

Such pockets!

And talk about all the weight savings on those wheels!