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Manda’s (Amachan) RC Adventures

Manda’s (Amachan) RC Adventures

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Project Blog by amachan

Recommendations: 348

About the Project

This project follows along my adventures of getting into the world of RC crawling.

This Project is Active

RC Truck Update

Tutoring 1
Skill 1
Idea 1
No Comments

Does it work? Kind of…. The ESC tends to go into LiPo low voltage cut-off while running on the NiMh setting with a NiMh battery. I think one of the soldering jobs I did on my bad day was not as good as I had hoped. So it may be getting a low voltage from that. Now it still should go into LiPo low voltage cut-off when running on the NiMh setting, but the entire programming of this ESC seems to be bust and it just uses whatever setting it pleases it I think. The ESC will need to be replaced, especially if I want to run a LiPo battery on it, this is most likely from the water damage it took from the swim it took early on in its life.

Is the suspension fixed, NOPE! The one shock that I was having problems with before I rebuild them was still not functioning well and seems to be leaking and lost a lot of oil by the feel of it. I adjusted the pre-load on the spring to compensate a bit, but I feel like these need to be replaced.

I can run it for now like this, although I will redo my soldering job, but then comes the question. Do I replace the broken parts and wait for the next ones that I may not be able to find replacements for to break or do I just hold on a bit longer and buy a new truck? I am leaning to buying a new one and it definitely will not be an FTX. I don’t think I will ever buy an FTX ever again.

RC Truck Update

RC Truck Spring Cleaning Day 11

Tutoring 1
Skill 1
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All back together and ready to go out once the battery is charged….

RC Truck Spring Cleaning Day 11

RC Truck Spring Cleaning Day 10

Tutoring 1
Skill 1
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I got my shocks all rebuild and refilled with a stiffer oil. They are really smooth now. All I need to do now is but the whole truck back together and I can go out with it again.

RC Truck Spring Cleaning Day 10

FINALLY!!!

Tutoring 1
Skill 1
Idea 1
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I finally got the tops of all of the shocks…. They were on so fucking tight, my hands hurt like hel. Anyway, I can now continue my RC truck spring clean tomorrow.

FINALLY!!!

RC Truck Spring Cleaning Day 9

Tutoring 1
Skill 1
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Today is not my day. I tried taking apart the shocks and was only able to get 1 of them apart. I am going to have to get some tools tomorrow to help me with that.

RC Truck Spring Cleaning Day 9

Then I thought, I want to at least get something done today, so I started replacing the Deans T-plugs with XT60 plugs. That didn’t go smooth, I messed up one of the plugs.

RC Truck Spring Cleaning Day 9

But I did at least get the ESC and 1 battery soldered up properly-ish. It’s on okay, they aren’t coming off. I only got enough plugs to do what I had not thinking I could mess this up. But today I can mess everything up it seems. Today is not my day….. 😞

RC Truck Spring Cleaning Day 9

RC Truck Spring Cleaning Day 8

Tutoring 2
Skill 3
Idea 3
1 Comment

Taking the rear drive axle apart again to replace the scruffy bearings and re-grease the diff with some marine grease.

RC Truck Spring Cleaning Day 8

RC Truck Spring Cleaning Day 7

Tutoring 2
Skill 2
Idea 2
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Taking the front drive and steering axle apart again to replace the scruffy bearings and re-greased the diff with some marine grease.

RC Truck Spring Cleaning Day 7

RC Truck Spring Cleaning Day 6

Tutoring 3
Skill 3
Idea 3
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I got the motor and gearbox assembly all back together, lubed up and ready to go.

RC Truck Spring Cleaning Day 6

My RC care package from Finland has arrived!

Tutoring 3
Skill 3
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I got a new spur and pinion gear, new bearings to replace the scruffy ones I found earlier, new shock oil to rebuild the shocks and make them a bit stiffer, XT60 plugs to get rid of these dreaded Deans T-plugs that I really start to loathe with a passion and some additional accessories.

My RC care package from Finland has arrived!

RC Truck Spring Cleaning Day 5: Impatiently waiting for replacement parts to arrive and finding random things to fix in the mean time....

Tutoring 3
Skill 3
Idea 3
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One thing that always bothered me is that the motor seemed to run smoother and faster in reverse and that there was a red dot thingy, not a light, where the black cable was soldered on. So I decided to de-solder both motor wires and re-solder them on the other way.

BeforeBefore
AfterAfter

This Really Grinds my Gears....

Tutoring 3
Skill 3
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I went out driving near the dunes yesterday and 15 minutes in this started happening….

You can hear the motor still turning and the drive shafts stop, this is a breakage in the main gearbox, most likely the spur or pinion gear connecting to the motor.

After taking it apart it became obvious that the pinion gear (small) had lost most of it’s teeth, the spur gear (large) however looked like it still had all of them. On closer inspection though, they are also ground down a bit shorter, you can see the splinters of the gears in the dirty lube on the side of the casing.

You can’t blame this on bad maintenance or that I put it back together incorrectly when I took it apart last. I had a picture of the pinion running the spur gear from then and you can see the pinion’s gears are already mostly gone. Somehow due to me being fairly new to this I missed this and thought it was fine. Learning along the way I suppose.

Before my car started grinding its gears I did get a nice picture though, so there is that to enjoy. Now it is waiting for replacement parts and then we continue the spring clean or spring repair updates for my RC truck.

This Really Grinds my Gears....

On a side note, I did fix the rear light on my RC truck…

Exhaust problems on an electric RC car...

Tutoring 3
Skill 3
Idea 3
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Exhaust problems on an electric RC car...

While driving around yesterday and rolling around on the ground, some damage happened to the exhaust stack on my car as you can see in the picture above.

Exhaust problems on an electric RC car...

It didn’t take long before it broke off.

For a while now I have been thinking of wanting to change the exhaust stack as I had a feeling it was going to break at some point. This kind of forced my hand in making a change.

First I removed the exhaust stack and the box it mounts on. Those aren’t glued together as they are both fixed to the body with screws. I wanted to go for a more factory stock exhaust that hangs under the body. So I sawed most of the stack off, drilled a hole and widened that with a craft knife. I smoothed the hole a bit and then blued it in the exhaust box.

And this is now the new exhaust on my RC truck.

I am aware that the exhaust might start grinding on the rear tire under full suspension compression, but I think it will be fine. I am rebuilding the shock early next month anyway and they should be a lot stiffer then. I will just have to see how it goes.

One of my favourite RC crawling spaces.

Tutoring 4
Skill 4
Idea 4
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One of my favourite RC crawling spaces.

I thought I’d show off one of my favourite RC crawling spaces. It is pretty steep and the roots offer a great challenge to climb or descent and it is less than a 5 minutes walk from my house.

I forgot my actual camera, so phone pictures will have to do today which struggles a lot more with over exposure from the sunlight, but here are some more pictures from today.

Going out again.

Tutoring 5
Skill 5
Idea 5
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I found a new way of parking.I found a new way of parking.
I found a big twig.I found a big twig.
Duck!Duck!

I have broken it!

Tutoring 5
Skill 5
Idea 5
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Went out driving earlier this week and one of the wires feeding power to the motor came loose. To be fair the bond looked pretty weak when I got this car anyway. So I had to buy a soldering iron and solder it back on. I haven’t soldered anything since my school days and I think I did a pretty good job, it feels pretty solid and everything works again. I am going to leave it to the soldering experts to judge my soldering and hopefully give me tips for the next time I have to solder.

I have broken it!

Off the road again...

Tutoring 7
Skill 7
Idea 8
1 Comment
Off the road again...

On a side note, I am definitely tanking the rear spare wheel off again. The centre of mass and thus the weight balance is so much better without it. It may get a lot better when I rebuild the shocks, but for now, it’s coming off.

RC Truck Spring Cleaning Day 4.

Tutoring 5
Skill 5
Idea 5
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That is one dirty axle.That is one dirty axle.

That is the front drive and steering axle done the same way as the rear axle. I found a couple more scruffy bearings that will need to be replaced. The shocks still need to be done as well, but I need shock oil first, so those will have to wait for a bit and hopefully I can get some bearings at the same time. So that’s the spring clean for now, but I should hopefully continue it next month to finish off these loose ends. In the mean time, let’s enjoy some crawling and getting it all dirty again.

RC Truck Spring Cleaning Day 4.

RC Truck Spring Cleaning Day 3.

Tutoring 6
Skill 6
Idea 6
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I was planning on doing both axles, but one axle was more work than I expected, so I just cleaned out the read drive axle today. I got all the bearing cleaned and coated with white lithium grease and put some more grease around all the cogs in the differential. Unfortunately I found 2 bearing that were rolling a bit scruffy, I don’t have any replacements right now, but I took note of it and will replace them in the future. Despite that the axle and diff are running smooth now.

RC Truck Spring Cleaning Day 3.

RC Truck Spring Cleaning Day 2.

Tutoring 6
Skill 6
Idea 6
No Comments
That is one dirty cover.That is one dirty cover.

The gearbox went through the same cleaning as the transmission box went through yesterday and is running smooth. Now the motor is a different story. I cleaned off all the dirt on the outside and then proceeded to blow through electrical contact cleaner until it ran clear. When that was dry I lubricated the bearings with some white lithium grease, put it all back together and it is running smooth.

RC Truck Spring Cleaning Day 1.

Tutoring 6
Skill 6
Idea 6
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I took the transmission box apart, completely cleaned out any dirt and old grease. I then lubricated the bearings with some white lithium grease and added a bit more grease in between the cogs for smooth running. I now have a nice clean and smooth transmission box for my RC truck.

RC Truck Spring Cleaning Day 1.
RC Truck Spring Cleaning Day 1.

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