an exercise in minimalism. ZZMT Crawler

Clint · Post by **Clint** » Mon Oct 10, 2005 9:56 am

didnt use a whole lot of parts, but this worked out well for a crawler.

2 xmod bearings
1 lipo
1 zzse pinion gear 6tooth
1 zzse transfer gear blue, for slow crawling speed/high tq.

pretty much just keep cutting until it works.

all 4 wheels touching.

bearings, one to stabilize front, one to stabilize rear, ca'd in place. aluminum tape wrapped around the driveshaft to make it slightly thicker so that it snugly fits the xmod bearings.

next step is a spring suspension/body mount and to fill the wheels with BB's for weight. so far it is going well.

-Clint

hue35 · Post by **hue35** » Mon Oct 10, 2005 10:52 am

Wow man, that's looking great. I'd love it if you could get a coupla more pics of the bottom, but with a little more light so we can see what's going on a little more clearly.

Also, I hope you plan on shooting some video of this thing in action.

Sporttracguy · Post by **Sporttracguy** » Mon Oct 10, 2005 12:04 pm

I love it!

Any chance you can pivot it and get a shot from the inside too? just so we can see all the gears and how you did that.

I had this project in the works too, I really like how you went about doing it.

Keep us posted

STG

sg219 · Post by **sg219** » Mon Oct 10, 2005 12:17 pm

Looks like a winner.

Get some tiny tennis balls, cut them in half, and a pile of little rocks and get to crawlin'!!

Maxximum Attack · Post by **Maxximum Attack** » Mon Oct 10, 2005 12:23 pm

That's great

I KNEW xmod bearings would work

. Great work clint. I'm waiting on stuff in the mail so that I too can get started on my articulation

Maxx

Post by **CaboWabo** » Mon Oct 10, 2005 1:07 pm

Damn Clint, way to step up to the plate.
I'm with the others on the more shots thing, would love to see more.

Sporttracguy · Post by **Sporttracguy** » Mon Oct 10, 2005 1:26 pm

One other question, since the drive shaft is off centered in the zzmt have you noticed any difference in articulation on either side? Does it tend to swivel easier on one side more than the other?

STG

Tuner1989 · Post by **Tuner1989** » Mon Oct 10, 2005 1:33 pm

Damn clint so far so good man, this thing looks like a keeper keep us updated!

Maxximum Attack · Post by **Maxximum Attack** » Mon Oct 10, 2005 2:48 pm

Wait a minute,
Aren't 2 pivot points over kill?
There's nothing for the area between them to do. Is there?

What is your reasoning behind using 2 bearings?
Oh yeah

way to break out of NOOB '05.

Tuner1989 · Post by **Tuner1989** » Mon Oct 10, 2005 3:18 pm

Maxximum Attack wrote:Wait a minute,
Aren't 2 pivot points over kill?
There's nothing for the area between them to do. Is there?
What is your reasoning behind using 2 bearings?
Oh yeah way to break out of NOOB '05.

He did that when he posted his xmod lol

Clint · Post by **Clint** » Mon Oct 10, 2005 7:03 pm

thanks guys.

i'll get some clearer pics tonite.

Maxximum Attack wrote:Wait a minute,
Aren't 2 pivot points over kill?
There's nothing for the area between them to do. Is there?
What is your reasoning behind using 2 bearings?
Oh yeah way to break out of NOOB '05.

Only the rear bearing is pivot, the front bearing is to locate the driveshaft and keep the front end stable. I did not want any lateral pressure on the driveshaft and diff gears, as lipos can get quite beastly.

I'll have to calculate the new rear end gear ratio, but I suspect it's about
100:1? +/-
I'm using the red zzmt motor btw.

EDIT: Slightly better pics. but eh. sorry. I need real light, not the floor lamp.

overhead shot of the gear setup

Front bearing is glued to the housing. lets the driveshaft ride true without clunky left/right motion of the front chassis.

The whole front chassis will rotate around itself without hitting anything.
(not with the steering motor in place. of course)

Might be able to see the aluminum exhaust tape I wrapped around the
driveshaft to fit the bearings.

i'll get some video later tomorrow.

Tuner1989 · Post by **Tuner1989** » Tue Oct 11, 2005 11:16 am

God this thread is addicting, i have to go pick up a chassis and start cutting my own little monster.............

Oh and i pm'd you back clint.

hue35 · Post by **hue35** » Tue Oct 11, 2005 11:47 am

Clint wrote:EDIT: Slightly better pics. but eh. sorry. I need real light, not the floor lamp.

Way better pics, man... thanks. I'm really looking forward to seeing this thing fninished.

Post by **CaboWabo** » Tue Oct 11, 2005 12:44 pm

hue35 wrote:Way better pics, man... thanks. I'm really looking forward to seeing this thing fninished.

Yup, much better shots, looks like Clint's married.

betty.k · Post by **betty.k** » Tue Oct 11, 2005 12:52 pm

blood group: ab positive