3Racing Cactus Build

[The Dark Knight]

Originally Posted by Tom3012

Nope, didn't modify the chassis in any way to fit the speedo there...

I've been running Team C wheels on mine since I got it, I don't like yellow wheels and that's what come in the box

Cool, thanks for the info. If I go for this kit, I'll most likely mount the speedo where you have.

That's good to know that other brands of wheels will fit.

[The Dark Knight]

I've decided to give the kit a go, I've been happy with my 3Racing XI Sport touring car so I should be happy with this.

What breakages have you guys had? Just wondering what spares to get, I'm almost tempted just to buy 2 kits.

[DJR2096]

Originally Posted by The Dark Knight

I've decided to give the kit a go, I've been happy with my 3Racing XI Sport touring car so I should be happy with this.

What breakages have you guys had? Just wondering what spares to get, I'm almost tempted just to buy 2 kits.

Just the rear shock tower for me. After a boil the tower seems fine!

[albella]

Originally Posted by The Dark Knight

I've decided to give the kit a go, I've been happy with my 3Racing XI Sport touring car so I should be happy with this.

What breakages have you guys had? Just wondering what spares to get, I'm almost tempted just to buy 2 kits.

I have only broken the rear axles. Right where they come out of bearing. I am selling mine. PM me if your interested.

[fencer39]

Nice looking kit!
Is it shipped from Hong Kong?......and is there any import duty to pay?

[DJR2096]

Originally Posted by fencer39

Nice looking kit!
Is it shipped from Hong Kong?......and is there any import duty to pay?

Yep shipped from Hong Kong.
Some end up paying customs, some do not!

[albella]

Integy also sells the Cactus as well as all 3Racing products.

[The Dark Knight]

Would you guys say that mounting the esc in front of the battery, is the best place to mount it? The only negative I can see about mounting there, is that the wires to the motor are quite long.

[DJR2096]

Originally Posted by The Dark Knight

Would you guys say that mounting the esc in front of the battery, is the best place to mount it? The only negative I can see about mounting there, is that the wires to the motor are quite long.

Lower COG, more weight up front. I put my receiver there & the ESC up the back above the battery tray. had to dremel out the back of the folding trey so I could open it up & put my LIPO in.

[The Dark Knight]

Originally Posted by DJR2096

Lower COG, more weight up front. I put my receiver there & the ESC up the back above the battery tray. had to dremel out the back of the folding trey so I could open it up & put my LIPO in.

Have you any photos of your current set-up?

What would you recommend as a good starting point for shock oils? 30wt front & 35wt rear?

[DJR2096]

Originally Posted by The Dark Knight

Have you any photos of your current set-up?

What would you recommend as a good starting point for shock oils? 30wt front & 35wt rear?

Stick with stock set up & oils is what I did.

[Clive Loynes]

Can anyone tell me if the gearbox internals use the same gear module as Team-C?

I want to put a geared diff in it.

[DJR2096]

Originally Posted by Clive Loynes

Can anyone tell me if the gearbox internals use the same gear module as Team-C?

I want to put a geared diff in it.

Never tried to be onest.

[Khan48]

Any way to rehost the build images? Image shack seems to have eaten them =( (Use imgur!)

[Darrin70]

Some new upgrades to be realeased soon..

http://os.3racing.hk/search.php?prod...el=cac-&page=4

[DJR2096]

Originally Posted by Darrin70

Some new upgrades to be realeased soon..

http://os.3racing.hk/search.php?prod...el=cac-&page=4

Yeah I seen them. Can't weight. Glad you added that link buddy!
New shock towers is what I'm going for first!!

[Khan48]

Hey all, i just finished the build, but i'm getting a weird and nasty transmission sound. See video below, and turn down the volume, its kind of loud.

https://www.youtube.com/watch?v=tR3HkOK7uTE

I rebuilt the trans after i first heard this sound. Exact same sound after rebuild. I tried to keep the case screws looser but that doesn't seem to help.

I've detached the motor, CVDs, and slipper and ran the thing with a hand drill and it still making the noise.

I will say turning the trans by hand it has some sticking points and people did say that the trans in this thing isn't very smooth at first, but this seems a ridiculous. Is this just the gears wearing in?

[mr. ed]

I'd take the topshaft , idler(s) and diff out of the trans and inspect those for burrs and flashes. Run an exacto knife through the recess between the teeth.
If there's one difficult area per turn of both wheels; it would be on the diffgear.
If it's roughly 2 to 3 times per turn of both wheels: check the topshaft and idlers first.

You could also try taking the gears out and reassembling one by one: driving the wheels and spur by hand you'd feel the problem disappear when the guitly element is removed (if it's only one)

[Khan48]

Originally Posted by mr. ed

I'd take the topshaft , idler(s) and diff out of the trans and inspect those for burrs and flashes. Run an exacto knife through the recess between the teeth.
If there's one difficult area per turn of both wheels; it would be on the diffgear.
If it's roughly 2 to 3 times per turn of both wheels: check the topshaft and idlers first.

You could also try taking the gears out and reassembling one by one: driving the wheels and spur by hand you'd feel the problem disappear when the guitly element is removed (if it's only one)

Thanks for the advice. Its the most helpful info I've gotten from a couple sources. I had greased the transmission gears so what i noticed was that on the idlers and diff gear there were places where the grease had been pushed all the way to the "bottom" of the teeth. I figured this was where there was some binding so I ran the exacto through these areas.

After reassembly it was much better, but still some binding. I've run a few packs through it and now its much smoother.

[Essex2Visuvesi]

A little top tip from the olden days
Get yourself an old brushed 540 motor and a couple of D cells from you local pound shop
Fit the motor and run the transmission on the bench connected to one D cell (1.5V) for the life of the battery.
swap the wires round and and run it in reverse for the life of the battery
This will give a much gentler run in