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bozdee

Another TT02B - McLaren F1 inspired!

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Just finished my McLaren F1 inspired TT02B. Unfortunately it only goes for about 30 seconds before the ESC goes into overload protection but new esc is on the way. I messed up the paint slightly due to impatience but it’s a basher so she’s going to see some use! Also, for the keen-eyed, you’ll notice I’m using spare ball bearings between the gearbox casing and the diff cups. This is so the universals don’t flick out of the drive cups!

Hop-up parts list:

-Tamiya GRP; tub, gearbox covers, body mounts, lower suspension arms front and rear.

-Tamiya stainless shaft suspension bridge (front only - doesn’t fit the rear).

-GPM full steel diffs front and rear.

-Custom stainless steel single piece machined 68T spur.

-Plaig Bearings Premium V2 ceramic bearings.

-Tamiya prop shaft and prop shaft joints.

-Surpass Hobby 28T pinion.

-Yeah Racing; short outdrives, universals, c-hub (front), front knuckles, rear knuckles, front shock tower, rear shock tower, alloy steering kit.

-GPM shocks.

-Tamiya slotted dish wheels painted gun metal grey and wrapped in Tamiya Dual Block C tyres.

-Tamiya; alloy servo mount, full turnbuckle kit, servo saver kit with alloy horn, servo saver cap.

-Yeah Racing; battery posts, battery holder.

-RC Scrauben high-tensile steel hex screw kit.

-Tamiya TBLM02S 10.5T with Tamiya alloy heat sink.

-Tamiya TBLE02S; power switch deleted, tamiya plug deleted replaced with Deans plug, added TFU-01 fan.

-Futaba T3PV transmitter and receiver.

-Savox SC-1256TG servo.

-Ovonic 6200mah 2S lipo battery.

-Tamiya Neo Scorcher Body painted (poorly) to resemble (kinda) McLaren’s last few generations of Formula 1 car (inspired by @ALEXKYRIAK Formula Neo buggy).

I will be replacing the Tamiya ESC with a Hobbywing Xerun XR8 SCT Pro.

Other future upgrades include retro fitting a TT02 style foam bumper to give more of a ‘front wing’ appearance to the front.

Biggest issues with the build were; impatience with painting and resulting poor finish, impatience with sandpaper on the wheels and using 120 grit sand paper instead of buying something much finer resulting in poor finish, TBLE02S constantly going into protection mode after fitting 28T pinion.

Overall it was a really fun build and now need to get back and help the kids finish their TT02B (anodised pink Dual Ridge Body)!

Here are some posts that cover the build starting with the original kit the kids built then as morphed into 2 once I realised I’d bought enough upgrades to make 2 cars!

The kids assembling the diffs:

XWrs68T.jpg

The standard kit taking shape:

ebLjNul.jpg

The kids car with the pink anodised Dual Ridge shell finally receiving some upgrades after I forced them to build it completely stock (even with bushings). We decided to go LiPo after originally starting with NiMh hence the connector adapter:

OjxApBl.jpg

Kids car off to the side now and I’ve started with my kit starting with the GRP tub:

Xce1xrQ.jpg

Unfortunately I didn’t get a photo of the GPM gears. They were a nightmare as one of the bevel gears was poorly machined and I had a hard time getting on the end of the prop shaft joint. I had to spend an hour with the dremel trying to machine it out.

qC8XG4q.jpg

Stainless spur gear:

C21Zz06.jpg

Tamiya 10.5t motor in place:

gAZcQl8.jpg

Originally went in with an 18T pinion. The metal pinion on metal spur makes a horrible noise:

29OfEOO.jpg

I had the YR alloy arms but decided against these in lieu of the Tamiya GRP arms:

QqX7rzv.jpg

Started with the Xtra Speed shocks but dropped them in favour of the GPM ones:

1HoqJfA.jpg

I purchased longer M3 screws with nuts and fed them into the aperture on the underside of the tub. This is the only way to really get the slop out of the TT02 steering. Along with the ground clearance (TT02B only), this is one of the weakest parts of this design:

cleyqMv.jpg

Some TBLE02S hacks; removed the Tamoya plug and went with Deans, also shortened the motor wires and soldered the Tamiya plugs directly to the wires, finally I deleted the power switch and soldered the 2 contact points that switch the ESC on. I didn’t bother with the LiPo cut-off hack at this point:

RvNZNpW.jpg

As you can see I opted for a LiPo alarm instead:

Omy6BIs.jpg

I managed to crack the tub on its first outing, oops:

MM1CJEN.jpg

I tried to get the YR universals to work but for some reason they flew out. I have another post going about this but before I worked out my ballbearing hack, I tried the standard dogbones which worked up until a point. That point was when they fell out in the long grass. Thankfully I found them and the one diff cup that fell out too. The standard chunky wheel cups also gouged a hole in the lower suspension arm (not too clear in the photo):

yenpw0h.jpg

I went back the YR universals and jammed a spare ballbearing in here to stop the driveshafts from flying out. Funnily, I had to do it on all 4 corners on my car. On the children’s car (largely identical) it’s only the rears that need the bearing spacer as the end of the universal fits snugly on the front:

85ESrFp.jpg

YR shock tower rear:

zIJV0wI.jpg

Front view with bearing spacer hack:

HRQHK8B.jpg

The finished product:

qmvPPI9.jpg

McLaren MCL33 inspired paint:

KQi7XIo.jpg

Front view:

PuaV1yL.jpg

You can see where I had issue with overspray and blotches where I was too impatient between costs of paint. I painted the orange first and when I had done a few coats I took off the masking and went to blue. Then I backed the whole thing with silver. What I should’ve done was finish painting orange, silver, black (or gun metal in my case as no black has been available for ages in Australia). Once complete, I should’ve then removed the masking and then repeated that process to effectively seal both colours. The rear wing turned out a lot nicer:

ewiEPtk.jpg

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The finished product in the sun. As I bought the neo scorcher shell on its own I didn’t get any decals. I have a few and will probably add a few tasteful decals to the wing and the ‘carbon’ gun metal grey stripe down the side:

yC4Uyjr.jpg
 

KQi7XIo.jpg

rdXXvEE.jpg

Thanks for viewing! I’ll post some updates soon and perhaps the kids car too once the rest of their upgrades arrive!

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Love the Ball Bearing Hack!! 👍👍  That might work well when I start on my extra Ground Clearance Hacks. 

I've definitely done my share of paint bloopers! Nothing a few well placed Decals can't fix. 😉

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On 2/28/2021 at 9:22 PM, Carmine A said:

Love the Ball Bearing Hack!! 👍👍  That might work well when I start on my extra Ground Clearance Hacks. 

I've definitely done my share of paint bloopers! Nothing a few well placed Decals can't fix. 😉

I think the paint splotches are rather unfortunate but they’ll add to the slightly haphazard character of the build!

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So a bit of an update. I’ve ripped out the Tamiya ESC and dropped in the Hobbywing Xerun XR8 SCT. I have some soldering to do this weekend but it looks to be a nice snug fit:

c7ir3jb.jpg

mGHy54W.jpg

The children are slacking off a little but need them to swap out the remaining steel bearings in their car for the ceramic ones. Still waiting for their Hobbywing Xerun XR10 to arrive though:

NB8mDYV.jpg

The nose of their Dual Ridge shell was starting to crack and break. Regardless it doesn’t fit in nicely between the uprights of the YR shock tower so I circumcised it and made it look like the Neo Scorcher:

WfUB1sH.jpg

That’s it for now. I’ll post some more updates once I’ve soldered my wires and perhaps a video of it running as it should be pretty quick!

Next upgrade attempt is a urethane bumper. I’ve purchased the standard TT02 B-parts and hoping to make them work with the bumper so let’s see how we fare!

 

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On 3/4/2021 at 9:19 AM, bozdee said:

So a bit of an update. I’ve ripped out the Tamiya ESC and dropped in the Hobbywing Xerun XR8 SCT. I have some soldering to do this weekend but it looks to be a nice snug fit:

c7ir3jb.jpg

 

 Nice build. What metal spur gear is that please ? Part number or any info would be much appreciated.

I’m about to start mine soon, not a cheap build is it ha

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2 hours ago, Rixsta said:

 Nice build. What metal spur gear is that please ? Part number or any info would be much appreciated.

I’m about to start mine soon, not a cheap build is it ha

I found and purchased from eBay. The chap doesn’t have it listed presently but I’m sure you can get in touch so he can machine it for you.  eBay user is cannonsdinh. The actual spur itself is dimensionally identical to Tamiya High Speed Spur #54500.

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6 hours ago, bozdee said:

I found and purchased from eBay. The chap doesn’t have it listed presently but I’m sure you can get in touch so he can machine it for you.  eBay user is cannonsdinh. The actual spur itself is dimensionally identical to Tamiya High Speed Spur #54500.

Messaged him, thank you.

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