Micro-t crawler/trail rig

ibjamn · Post by **ibjamn** » Wed Jul 25, 2007 12:15 am

Well, I am buying Dad's micro-t since he bought the micro-baja.
So, having 2, I figured I'll do something nobody has done yet.

I'm hacking away to do a true 4x4. It will be a 1/32 scale TLT-style RC.

Body is a Tamiya mini 4wd Juggy Jr.
I am using the tires and wheels from this Tamiya Prado mini 4wd kit. As well as the "pumpkin" areas from it's chassis, and the Wild Willy chassis. They are designed to have a gear there for the axle, driven by a worm gear. So that is why it seems that they were made for that gear in the picture. That is a slot car crown gear and pinion that I trimmed up to fit in it. I think it'll give a decent gear reduction for a trail rig using the micro-t tranny. The axle shaft is from a piece of steel rod I had picked up from the LHS some time ago. I forgot the thickness.... The gray plastic pieces are parts of the rear axles I robbed from a couple of those "mini machines" 4 wheeler diecasts. The steel rod fits nicely in them, so I use them on the ends of the axle.

This shows the trimming I did to some of the parts. The pinion gear is shortened and drilled out for the shortened stub axle from the micro-t. The crown gear has been drilled out to fit the steel axle, and has tiny holes drilled cross-ways to allow CA to be applied when I do the final assembly of the axle housing. Not quite scale, but close I think.

This is how the rear sits for now. I slid on 2 of the old micro-t plastic bushings and pressed the pinion gear on the stub axle. Then used Bondene styrene/ABS glue and built up support(made from scrap plastic)to hold things in place.. It still needs some trimming and what-not, but it won't be fully closed up until I get the whole mock up done on the truck, mainly because I need to see where the links will be attached.

bottom side

Here is the layout of the front axle. I'll be using the steering knuckles, dogbones and output shafts(?) from a ZZMT. The knuckles already have bushings, so it'll make building the front easier, since that step is done.

I let someone borrow my camera for a couple of days, so these pics are it, until I get it back. Enjoy

SHAUN · Post by **SHAUN** » Wed Jul 25, 2007 12:39 am

ibjamn wrote: I let someone borrow my camera for a couple of days, so these pics are it, until I get it back. Enjoy

Hope it doesn't come back looking like this

Great work you have. I really wish someone would come out with some good small scale axles.

sidewinder · Post by **sidewinder** » Wed Jul 25, 2007 1:38 am

Shaun wrote:

I really wish someone would come out with some good small scale axles.

I've been playing with sand casting and I was thinking of doing som axel housings using aluminum (Ok, so I haven't actualy tried aluminum yet, just you basic bronz, but it looks like the same process) I havn't decided what axels to copy...I've been trying to gat ahold of a set of SSMT's and casting the housing, then like in the post I was thinking slot car gears/axels. I fond a place where I can by small u-joints and a hub could be cast as well. If I ever get these done I'll post some pics...maybe even do a few for some of the people here. my biggest problem is the doner parts so, if you know anybody who has a stripped SSMT axel housing and want's to donate it to a good cause, let me know please.
There is a company called PTI making an 1/18 scale crawler called the golliath...maybe if anyone here get one they could post the replacemnt parts list somewhere on the forum...might be a good source, if you wanted to go smaller you could just narrow the axel.

ibjamn · Post by **ibjamn** » Mon Aug 20, 2007 10:48 pm

A bit of an update. Spent several hours on the front axle.

I took the bushings off of the rear axle of the junk doner ZZMT, cut them down and used them in the housing to carry the axle shaft. (would you believe it was from my only attempt of an articulation mod that failed miserably?

)

It was pretty much cut this, see if it fits, trim some, glue it and wait. Then repeat for every other piece of plastic until I came up with this. I tried to add a little strip of plastic here and there, for strengthening.

The ZZMT front carriers were turned 90* and then trimmed here and there. The wheels are hacked up to fit ZZMT wheels inside of them. I did cut them down a good bit, to pretty much use only the center portion. Only CA holds them together, but it's a pretty secure.

After more sanding on the plastic to try to make them prettier, I mounted the wheels. Not perfect, but not too bad for something practically made from scratch, using what I could.

Still have to figure out the steering and link attachments, then I'll close them up for good.

sidewinder · Post by **sidewinder** » Tue Aug 21, 2007 1:36 am

Shit, that looks like its going to be great..............................................................

nazcom83 · Post by **nazcom83** » Tue Aug 21, 2007 3:13 am

wooow... great job on them axels they look killer

ynad · Post by **ynad** » Tue Aug 21, 2007 5:59 am

yep, like they said ^^^

ibjamn · Post by **ibjamn** » Tue Aug 21, 2007 4:58 pm

Thanks

I can't wait to finish it and actually drive it..

SuperFly · Post by **SuperFly** » Tue Aug 21, 2007 5:28 pm

Lol, for some reason all those plastic shreds all over the place makes me think you're like Edward Scissorhands with chassis parts. A flurry of blurred activity with shit flying all over the place, and a nice little gem emerging.

I can't wait to see how this comes together.

civicsr2cool · Post by **civicsr2cool** » Tue Aug 21, 2007 5:53 pm

fuckin sweet dude! what you got thought for paint?
and how big are these tires compared to the zip ones?

TheMechanic54 · Post by **TheMechanic54** » Tue Aug 21, 2007 9:07 pm

civicsr2cool,
Check first pic, ZZMT upper right corner.
Son

, looking good

civicsr2cool · Post by **civicsr2cool** » Tue Aug 21, 2007 9:27 pm

yes i seen that was just maybe wanting to see actual diffrence side by side. got me a willy jeep coming, il see then

crazydave · Post by **crazydave** » Wed Aug 22, 2007 12:27 am

That's some scratch building right there. Looks good.

Should be all downhill from here.

ibjamn · Post by **ibjamn** » Wed Aug 22, 2007 12:37 am

Thanks guys.

except with scissors, my dremel and flush cutting snips are throwing shreds of plastic everywhere. You should see my floor

Paint?...... I was thinking 2 tone. silver on the bottom and either the Garnet Red or Metallic Copper on top. Not sure on that yet. I don't want chrome anywhere on it, so all the tubular parts will be black.

The wild willy jr tires are actually bigger than these, if I remember right.
I'll try to dig them out tomorrow and get comparison shots.

It figures that after I am done with mounting the rims, that I would find a new diecast offroad truck that has the perfect tires and wheels for this truck.

bitPimps.lixlink.com

Micro-t crawler/trail rig

Micro-t crawler/trail rig

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