The Gaganator Project

[whipper-ag]

Wow, the gear you used for a jig looks so familiar. Are you using golf car diffs?Good job. Looks like it runs nice & true.

Whipper

[Beeman]

Wow, the gear you used for a jig looks so familiar. Are you using golf car diffs?Good job. Looks like it runs nice & true.

Whipper

It's the diff gear out of a suzuki transmission (geos, fireflys... sprints) same place I got the diffs that I'm using. Thanks for the compliment. I think it looks pretty close to being centered as well, much better than my earlier attempts.

I got to building a little more today, setup the diff frame how I liked it and mounted the first chain to see how it all works:





PS. I know the CV axles have to get in some how :P It just made it easier to weld now and cut later than the other way around.

-Beeman

[Beeman]

I had to build some spacers so I could mount the sprockets to the other side of the diff flanges... here are some shots of the spacers and the diffs all together.




Man.. this stuff takes time....

[Mike]

Man.. this stuff takes time....

Looking good Beeman. You've got some major time invested already but I think the end result will be well worth it.

[Beeman]

Mike, theres a good tragically hip song "an inch an hour 2 feet a day"... keeps me going :P

And just a little bit more tonight... mainly the brackets in the last pic.

[Mike]

Mike, theres a good tragically hip song "an inch an hour 2 feet a day"... keeps me going :P

Plus you'll "move through the night in a most fashionable way"

You may have answered this before in the thread somewhere but how much spacing do you have from axle to axle?

[Beeman]

You may have answered this before in the thread somewhere but how much spacing do you have from axle to axle?

If I remember correctly, it's 26.5" - 27.5" - 26.5". The middle is larger for the turning.

[Robio_8x8]

You have some interesting ideas

I am looking forward to seeing how they work out

I never have seen or imagined so many different concepts in just one AATV


The water propulsion has me really curious

[hydromike]

Plus you'll "move through the night in a most fashionable way"

You may have answered this before in the thread somewhere but how much spacing do you have from axle to axle?

Ooooo... Hip fans...
Let's hope that "New Orleans is Sinking" doesn't have any sort of relevance to the 'Gag when she's done...

Slow and steady wins the race, Beeman... it's coming together well.

~M

[Beeman]

On the topic of slow, :P

I'm looking for a gear reduction transmission for this beast, much like a 4 high 4 low transfer case.

I plan on using the 3 speed auto from the sprint for the transmission which will have one output CV shaft going to a 1:1 right angle gear box that will drive a shaft of two sprockets down to that diff frame I'm building. The reduction of the sprocket setup will be 2:1.

I would like to have the option of reducing this another 2:1 or sticking with 1:1. Anyone know of a stock transmission like this?

[Beeman]

I would like to have the option of reducing this another 2:1 or sticking with 1:1. Anyone know of a stock transmission like this?

Meh, still can't find anything. Oh well, I'll leave that option open for later intergration.

On another note, I emailed michelen for custom Tweel tires (check it out on howstuffworks) to see if I could either purchase custom tires, or be part of a prototyping test for the tires I need. They would've been perfect for the application since the tire is no thicker than an inch and the spokes could be easily made into the shape of a prop... but, unfortunatly, they "Michelin does not produce custom tires beyond our product lines.". Oh well, time to manufacture my own! :P

Beeman

[GREASEMONKEY]

The Tcase in my Jeep is a factory 4:1
You may have good luck with this company. They are TC & gear specialists!
Advance Adapters.Com Engine & Transmission Conversion Adapters

For the tires are you thinking of buying blanks & cutting tread?

[Beeman]

Well, I got the diff frame done enough to put it in for a little test. The axles are just a little on the long side so the diff frame needs to sit higher in order to allow for a full turn without buckling, but with the diff frame being higher it solves the problem of the axles hitting the main frame. Hopefully I can find a way to get the engine and transmission sitting a little lower... but anyways, the pics I think are pretty cool... I took shots of how it'll (probably) work when it's done, showing the rear steering, front single steering and the rear propellor setup.

Greasemonkey - what are these blanks you speak of? Like a solid tire?











And a video of it crashing... well, it's ment to be a video to show the turning abilities of it and how the diff frame works with the tires.... bah, anyways, here's the vid:

Gaganator Turning

[hydromike]

Oh, an Argo would've TOTALLY made it over that block of wood Beeman!

That's some complicated geometry, and it looks GREAT! I can't wait to see the steering setup. Keep up the great work...

~m

[Mike]

That is one tight turning radius. Looking good.