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Thread: Johnny Builds a Brat

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Old 01-10-2019, 02:31 PM   #1
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Default Johnny Builds a Brat

I'm on a quest to build the most capable least capable trail rig I can. Building the MST CFX Bronco with its tiny tires was a ton of fun, but it's still a great performer out on the trails. I want a challenge!

"How about an even tinier tired Subaru Brat?"

Yes! Now you're talking, man inside my head! I love the Brat. I know there was a period of time when everybody and their mother built Brat scalers, but I missed that boat. Besides, most of those were built as solid axle rigs (at least in the rear). I want to do one that's pretty much what a stock Brat would be. That sounds like a wonderful awful idea.

"Enough chatter, chatterbox. Show me a picture."

OK...


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr

"That doesn't look like a Brat."

No, but it is a 4wd platform with independent suspension and a wheelbase pretty close to the Tamiya Brat body, so let's do this! I've been playing around with this off and on for a few months. It hasn't really gone as planned, so I've tried to just go with the flow and see where it takes me. No point in getting too stressed out over tiny trucks.

Wish me luck.
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Old 01-10-2019, 02:41 PM   #2
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Default Re: Johnny Builds a Brat


IN.
that sounds RAD. i am also into doing cool stuff that seems dumb hahaha
cant wait to see where this goes! i mean i know where it will go but its the journey, right?

seriously cool idea. i will be checking back on this for sure.

*oh and if you don't use 1.55 dirt grabbers you are being to easy on yourself lol
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Old 01-10-2019, 02:59 PM   #3
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Default Re: Johnny Builds a Brat

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*oh and if you don't use 1.55 dirt grabbers you are being to easy on yourself lol
Shhh...
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Old 01-10-2019, 03:43 PM   #4
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Default Re: Johnny Builds a Brat

Fabulous! I love the Brat! The Tamiya Brat was my first rc car. Still have the body, which was meant to go on some MRC axles. Yeah, solid axles, the easy way
I like your Bronco and your Cherokee, so I am curious what you will do with this one
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Old 01-11-2019, 07:12 AM   #5
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Default Re: Johnny Builds a Brat

Nice. Built one a while ago - same chassis, same body using the Shapeways body mounts, and some little Baja MTZ's. The wheelbase was off a bit which kind of turned me off to the project. Fun little chassis though!!
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Old 01-11-2019, 08:16 AM   #6
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Default Re: Johnny Builds a Brat

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Originally Posted by Stollenritter View Post
Fabulous! I love the Brat! The Tamiya Brat was my first rc car. Still have the body, which was meant to go on some MRC axles. Yeah, solid axles, the easy way
I like your Bronco and your Cherokee, so I am curious what you will do with this one
No harm in a solid axle version. There are plenty of 1:1 examples out there. It would be far more capable than what I'm cooking up!

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Nice. Built one a while ago - same chassis, same body using the Shapeways body mounts, and some little Baja MTZ's. The wheelbase was off a bit which kind of turned me off to the project. Fun little chassis though!!
I looked at those mounts and thought about going that route at one point. That was one of many changes in direction with this build. Like I said, things haven't exactly gone as planned. I've had to tinker with things quite a bit and make some compromises. Sometimes it's good to share the things that go wrong along with the things that go right. Hopefully everything works out in the end.
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Old 01-11-2019, 12:20 PM   #7
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Default Re: Johnny Builds a Brat

Here are the first few pics from the build. So far pretty much straight up according to the manual. I did lock both differentials with the gear method. I also added a set of bearings.

I may end up unlocking the diffs at some point for a couple of reasons. One, I think this tiny truck is going to be challenged in the turning radius department. Two, I think it might be "fun" with a more limited slip type of setup out on the trails. I'll make that decision after I've run it a bit.


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr
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Old 01-11-2019, 01:03 PM   #8
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Default Re: Johnny Builds a Brat

More please! Looks good so far. Seeing where things went wrong can save others a lot of frustration, can we hear more about what didn't work and why?

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Old 01-12-2019, 02:47 PM   #9
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More please! Looks good so far. Seeing where things went wrong can save others a lot of frustration, can we hear more about what didn't work and why?

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Oh, my struggles will be in plain view. Fear not.
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Old 01-14-2019, 01:53 PM   #10
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Default Re: Johnny Builds a Brat

Here are a few more pics. Again, pretty much a straight up build according to the manual at this point. I used these DS3218MG servos in my CFX, TT02 and Dancing Rider builds. They've worked OK in those applications, so I thought I'd try one here to keep the costs down.

The pogo sticks won't be staying...


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr
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Old Yesterday, 12:44 PM   #11
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Default Re: Johnny Builds a Brat

Here's the last batch of pictures before we start getting into some of the challenges. Here we've got a Holmes Hobbies Trailmaster Sport and a Hobbywing 1080 ESC. For my money, together they're a great value to get you up and running.

At this point I had a basic, functioning vehicle. The speed seems to be right in the ballpark of where I want it (we'll see if things run too hot due to the gearing once it gets on the trails). Overall, the build provided a lot of that "quirky" Tamiya fun.


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr


Tamiya MF-01X Subaru Brat Build by johnny anguish, on Flickr
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