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Tbird232ci

TA01/02 Shenanigans

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In my youth, I wanted a TA02. I ended up getting a TA03 and using that to get into racing. From there, I never looked back at the TA02. After many years, something popped into my head and I wanted a TA02T. Somehow, I ended up with seven TA02's and some TA01's and their variants. This thread will be about the builds, rebuilds and dumb stuff I do along the way.

First up is a very sad looking TA02 I found on eBay. It looked as if it was hung up in a shed and neglected for many years.

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I got it fairly cheap and was mostly excited for it to be complete and in decent shape.

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With the electronics out, you can see the absolute filth and a little hillbilly engineering.

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With it blown apart, I inspected the plastics and found most of the common stuff broken. The rear gear case, the chassis, and a few other little things.

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These are the parts I was intending on using after the ultrasonic bath.

I had a long and hard debate on my next step. I had a new tub chassis. I also had an FRP kit sitting around. I didn't want to use the FRP kit on such a crappy specimen of a TA02, but I also have a few carbon chassis and other builds to do.

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So this was the choice I made. The FRP kit, with the replacement parts I needed.

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The FRP kit is quite nice.

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The chassis build was very nice and enjoyable.

On to the next installment!

 

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With the main chassis built; it was time to turn to the shocks. The shocks got disassembled and took a bath in the ultrasonic cleaner as well. The shafts were a little rough, but they polished up just fine.

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In all honesty, I think the shock vacuum chamber is a waste of time. It seemed as if it made no difference to me.

With the shocks done, I could get to the electronics.

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These things are a time capsule. I was impressed that everything was in tact, and in good shape.

I pulled the cases off of the electronics and unpinned the motor connectors as I intended on reusing them. Those all went into the ultrasonic bath as well.

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They came out very nice. Almost new looking. I did have to glue the black gasket back together which wasn't my finest work.

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The servo with a new High-Torque servo saver. The length of the servo lead offended me.

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So I fixed it.

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My initial intention was to solder in a new lead for the ESC until I opened it up and saw how difficult it was going to be. I used the extra servo lead and some braid to hide the splice job.

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Nice and tidy.

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I doubled up the servo tape so I could have the antenna pass under the ESC.

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I've always liked the ESC being up top on a TA02. It seems to showcase the ESC. While I was at it, I shortened the battery and motor wires on the ESC.

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I was pretty happy with the outcome thus far, but the wire length on the battery also offended me.

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So I fixed it.

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I used the extra motor wire length and some fresh terminals to make new wires for the motor. Unfortunately, I didn't take any pictures of the motor. The motor just got wiped down and a light polish as I didn't want damage the label. It's a B&R Bullet.

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I'm happy with the outcome of the electronics at this point.

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Some random wheels and tires, and this one is done for the moment. I have a few more parts waiting for it, but that's for another day. I'm working on getting some practice painting bodies so I won't have one ready for this one for a while.

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The next victim is a Humvee. I found this on eBay in a listing for a big box of RC stuff. In that box was this thing,two other cars and a bunch of misc stuff.

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It's a little rough, but mostly complete. This vehicle was on I lusted over when it hit the magazines.

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Now to focus on the chassis.

I blew the thing apart, and found the shock towers and main chassis were toast. The MSC is also hitting the trash can as it was scorched and who really wants to use one anyways?

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This was the keep pile. Aside from being scratched up and dirty, most of it is in very good shape.

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And the trash pile.

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I have never seen a dog bone bent like this. Both rear dog bones were bent almost identically!

The good parts took a bath in the ultra sonic cleaners and came out looking mostly great, until I noticed one thing...

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What kind of MONSTER doesn't trim off the excess plastic from the parts tree?!

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One of the tasks with this build will be going through these ESC's and figuring out which are good and which ones to use in this build and one or two others. I love these Futaba ESC's.

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I ordered the parts I need for this from Tonys Tamiya Parts so unfortunately I'll be waiting for a little while.

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I did build the gear boxes. Luckily, I had a 17t pinion left over from another build that I could use in this. It came with a 16t that was worse for wear. It also had a Trinity Midnight motor, that came with the box and everything. I decided a silver can would be plenty for this thing. It may get run once or twice.

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I remembered that this did have an ESC with it. It was stuck to the upper deck, but was removed after a wreck took it out and the MSC was put back in it. I'm going to try to repair it...

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This will be fun...

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And so will be the receiver.

I've never replaced an antenna on a receiver before. Looks like I get to learn.

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On 6/10/2023 at 10:41 PM, Tbird232ci said:

I've never replaced an antenna on a receiver before. Looks like I get to learn.

It's just a normal wire - should be easy. Just make sure it's the right length. 

And speaking of antennas:

On 6/10/2023 at 9:38 PM, Tbird232ci said:

I doubled up the servo tape so I could have the antenna pass under the ESC.

This sounds dangerous - won't you get horrible interference from the power electronics? When I used to race, having the antenna wire too close to the other electronics caused glitching from interference. 

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On 6/12/2023 at 5:34 PM, Novamadcars said:

Great content keep it coming 

I appreciate it. I'm in the middle of waiting for some parts unfortunately. I'll have a few updates coming soon when I get to sit down with the soldering iron.

5 hours ago, rich_f said:

It's just a normal wire - should be easy. Just make sure it's the right length. 

And speaking of antennas:

This sounds dangerous - won't you get horrible interference from the power electronics? When I used to race, having the antenna wire too close to the other electronics caused glitching from interference. 

After some research, I did see that the AM radios used a single conductor antenna wire. I kept finding information on the newer radios which lead me to assume it was a coaxial wire. 

I did this antenna routing method a few times before with success, but I never did it in any of the cars I raced. This one will likely get ran once or twice in my driveway, so I'm not overly concerned. If it is bad, I'll have to come up with a method to run it under the upper deck. 

 

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I decided to do a little bit of work tonight. Not a huge amount of progress, but some is better than none.

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This ESC has seen some days. I did a little redneck engineering and tested it. To my surprise, it worked!

I de-cased it and gave it a decent cleaning with a toothbrush and a foaming glass cleaner. I used a small file and smoothed out some of the damage on the fins, then used a Sharpie paint market to touch up the heat sink. It was gloss black when the original was a low gloss, but it's better than bare aluminum.

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This was my first time using a desoldering braid. With a little flux, it worked incredibly well. I was very pleased.

Originally, this ESC had the flat, 3 wire lead with a Futaba J connector. The previous owner cut and spliced a Futaba G lead on it as the receiver and servo used that style. I previously purchased some old servos with the G leads to steal for this ESC. Unfortunately I didn't take pictures of the solder job afterwards. It was pretty pleasing.

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It cleaned up pretty well. I'll be soldering on a Deans connector for the battery. If theres enough length, I'll directly solder the motor wires.

The next debate is if I'm going to shorten the servo leads or not. I've really enjoyed cleaning up the wiring in these old cars.

 

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I'm still waiting on parts so I shifted focus onto the transmitter. Just like everything else, it has had a life.

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The poor thing is filthy and had the wrong antenna.

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I had an old Futaba antenna kicking around in my tool box for many years. It's about 1/8" too long to lay down on the top, but I call it good enough.

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The next big issue is the battery holder, but I had a solution.

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After a little bit of soldering, I had a battery that was almost meant to fit.

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I may get some foam to tighten it up in the battery compartment, but I'm quite happy with it.

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After a big scrub down and treating it with some car interior protectant, I'm very happy with the result. It doesn't look like it's been in somebodies garage for 20 years.

 

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Two updates in one day?!

I got a useful delivery today.

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Because of this, it was time to get to the receiver.

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It wasn't in terrible condition. The biggest issue was the antenna obviously.

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It blows my mind how they were able to cram so many surface mount components in one small space.

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The antenna swap was much easier than I expected. Unfortunately I didn't have any clear or white heat shrink.

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The case of the receiver went through the ultrasonic cleaner. The servo got scrubbed down very well by hand. I decided that I'm not shortening the servo lead. It's a little too tedious for me.

 

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It's been a little longer between updates than I would like. The chair I use at my work station is a folding kitchen chair. After spending a few hours a day on it for a few days, my back was demolished. I ended up ordering a new chair that should arrive in a few days. I did tough it out to do some building today.

Before continuing the Hummer, I got a Shapeways shipment.

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This switch adapter allows me to mount the Novak switch in the location Tamiya intended. It was designed by AMpro. I know he's on here, but I cannot remember his user name on here.

Anyways, on to the Hummer.

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Most of these parts came from Tonys Tamiya Parts. Aside from the chassis tub, I've had these parts waiting for a few months.

I didn't take any progress pics as it's a basic tub chassis build. I enjoy posting pictures on here, but I don't want to make these threads too hard for those of us with sluggish internet.

This is the project thus far.

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I'm pretty happy with the electronics thus far. I'll be soldering the motor wires directly to the motor and using a Deans connector for the battery. I was going to use some black Deans that I got from China, but I think I'll use the traditional red to be more era correct.

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Finally, update time!

I received the parts I was waiting on from TTP but somewhat nipped at the project little by little. Between work, automotive projects, having guests over and other normal life stuff, I just didn't dedicate much time to RC stuff. Anyways, the chassis is pretty much complete. It's not perfect, but I'm still very happy with it.

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Soldering that Deans was a nightmare. I'm properly chuffed with how well the wires for the motor turned out.

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The electronics have a little wear, but they're good enough for me.

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I had to pop the body on it. The body is filthy and needs a little love. My painting skills are horrid so it'll likely stay solid green unless someone local would have the skills to make it nice.

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On 6/26/2023 at 8:25 AM, Tizer said:

Nice work on restoring the old electrics :) Ampro would be @Pintopower on here

Someone looking for me? If I owe them money, I have no idea who that devilishly handsome AMPro guy is....

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