The M - Chassis TOPIC

[Alex97 193]

4 minutes ago, Honza said:

I think that main problem is, that Tamiya themselves couldn't decide whether it'll be a rally car or an offroad truck - and made a compromise that doesn't work well in either way 

Facts ^^^^ 

Plus it had to work with TL01 + M05 parts so they were kinda limited in some aspects from the get go. 

 

I've seen the mid motor conversation, are you responsible for it? 

[simalarion 2196]

Starting to get an overview over my next build M-08R, and i have some question’s ofc.

I thought i bought low profile servo online but it was not, bummer.  As im new to using the low profile ones what is the optional hight for use in this chassis?. And yes i have a digital mm meter & know standard size for them but i was 100% sure from the picture so i did not check size.

Do you really need to both drill & cut in this build?, i heard rumours that you really did not need to cut parts 

Planning on the Escort MK.II body and PS 32 Corsa white with Black PS-5 “primer” on top (as i do not want it to bright & white, what do you think?

I believe i will go for a SuperStock or use a Torque tuned i have that might be fast enough for these Small RC Cars (?) 

[Carmine A 2046]

8 hours ago, Nikko85 said:

I think I might be the only person here who really likes the MF01x. Yes the rear droop issue is a pain but otherwise works well, takes a range of opinions and handles pretty well, plus super modular in terms of wheelbase and width.

You're not the only one.... it's a fun little Chassis. But it does have limitations, and you won't find the solutions from Tamiya. 

Look on Thingiverse or Shapeways. Some guys have come up with interesting 3D Printed solutions!

[Honza 936]

5 hours ago, Alex97 said:

Facts ^^^^ 

Plus it had to work with TL01 + M05 parts so they were kinda limited in some aspects from the get go. 

 

I've seen the mid motor conversation, are you responsible for it? 

Yep, there's a topic in TC designs that follows the design process - It's designed to use as few extra parts as possible (ap set of M05 gears, a 40mm shaft, some screws and bearings) and to look like an injection moulded part - just to prove that Tamiya could do it too, if they wanted 😃 The biggest issue with my current design is motor cooling - I'd like to fix that in the future design.

2 hours ago, Carmine A said:

Look on Thingiverse or Shapeways. Some guys have come up with interesting 3D Printed solutions!

Or Printables, I migrated there after I couldn't  find even my own creations on Thingiverse 😃

[Andreas W 1555]

6 hours ago, simalarion said:

Planning on the Escort MK.II body and PS 32 Corsa white with Black PS-5 “primer” on top (as i do not want it to bright & white, what do you think?

I believe i will go for a SuperStock or use a Torque tuned i have that might be fast enough for these Small RC Cars (?) 

I think of course the Escort MK2 is a brilliant shell for this car. You cannot go wrong with white (but I have a soft spot for silver metallic infuenced by the 1600 Sport a neighbor had when I was a kid).

 

When you have a TT put it in and see how you like it. On a 2S lipo I think it would perform just fine for now. The most important thing now is to gain experience and learn to drive consistant with good lines. You do'nt need a million hp to do that. Look at Tamiyastef who is running a Silvercan on 2S and getting decent results again and again. 

 

If you want some more a Yeah Racing Hackmoto 23t will be faster, but not so wild as a SS. Straight out of the box it is nothing to be afraid of. Turn the timing to max and it wakes up. I would put the SS in your Top Force if I were you. 

 

Later you will probably take the leap over to BL. I am about to do so in short time. 

[simalarion 2196]

Thanks for info

Yes you are right, first off all i need driving training. I have a SS in my Top-Force that i installed not long ago, runs much better than i first thought with it,
 

Another thing that is new to me is using low profile servo, I believe M-08R require (?). One i found on Ali has 40*20*28, but i see it vary as one Savox have 40*20*25, im thinking as long as it around 20 high that is the main thing?

[twaleta 161]

18 hours ago, Alex97 said:

I was also toying with one considering how hard it is to get some M03 parts now. 

I just wish that Tamiya gave us the option to turn the MB01 into a 4wd kit, seems like a miss opportunity IMO. I know we have the MF01X however is was extremely disappointed with it. 

yes i agree.When the mb01 will be released maybe we will see how easy it is to modify (and turn into 4wd especially since you can switch between fwd and rwd should be easy?)

[Carmine A 2046]

2 hours ago, twaleta said:

Yes i agree.When the mb01 will be released maybe we will see how easy it is to modify (and turn into 4wd especially since you can switch between fwd and rwd should be easy?)

Not saying I know.... but it might be as easy as getting another Gearbox. One in front, one in the rear. 

[simalarion 2196]

I think another Gearbox will do it:

https://www.rctech.net/forum/electric-road/1107644-tamiya-mb-01-a-6.html

If it comes as a Hop-Up as Ball Diff also it would be great 

[simalarion 2196]

Regarding M-08R - this is the pinion - https://www.tamiya.com/english/products/53509/index.htm -

I exchanges all my pinion gears on my previous kits to the Steel Carson 0.6 Module they sell on Tamico for a good price and they not smear out aluminum dust all over the gear box ofc, but how is this Floruine coated ones (probably the same stuff they use in frying pans), do these hold up as good as Steel?. 

This chassis ia already very Hop-Uped i can see so it seems to be worth the extra money - https://www.tamiya.com/english/products/47480/index.htm -  But could it still need a hop-up to Steel pinion you think?, i do not want all that metal dust all over the gears

[Pylon80 2628]

49 minutes ago, simalarion said:

Regarding M-08R - this is the pinion - https://www.tamiya.com/english/products/53509/index.htm -

This seems to be the hard coated version already. That should not be a problem especially if you run the TT motor. One thing to note is the smaller you go in teeth the more it will wear out as the forces exerted on the teeth are higher for a given torque. I use hard coated pinions down to and including 20t then steel below.

[Kowalski86 3030]

On 6/9/2023 at 2:31 AM, Nikko85 said:

I think I might be the only person here who really likes the MF01x. Yes the rear droop issue is a pain but otherwise works well, takes a range of opinions and handles pretty well, plus super modular in terms of wheelbase and width.

I liked the adjustability of my 01Xs and the fact that they come with metal dogbones/driveshaft. They're just very flawed as far as rallying goes, but more than anything I just didn't like working on mine.

[Kowalski86 3030]

1 hour ago, simalarion said:

 https://www.tamiya.com/english/products/47480/index.htm -  But could it still need a hop-up to Steel pinion you think?, i do not want all that metal dust all over the gears

I use steel pinions steel in everything, the grub screws in hard coated aluminum gears seem to round out easier, and the steel pinions that I use are wider so easier to mesh.

[Sogogi 3217]

Just saw a vid released for mb-01.

diff/drivetrain/ suspension arms (except center shaft) remind me of tt-02… even drive shafts are those plastic with metal pins.. hmm

[simalarion 2196]

 

[Alex97 193]

2 hours ago, Sogogi said:

Just saw a vid released for mb-01.

diff/drivetrain/ suspension arms (except center shaft) remind me of tt-02… even drive shafts are those plastic with metal pins.. hmm

They really missed a trick not giving you the option for 4wd, it could of been one chassis that could be FWD, RWD, 4WD, front facing motor, rear facing motor, 210mm, 225mm and 239mm wheelbase. That would have made one very versatile little model. 

Everything being plastic is pretty standard of Tamiya and gives you something to upgrade so although it's annoying I personally don't think it's a deal breaker. 

[ChrisRx718 4470]

13 hours ago, Alex97 said:

Everything being plastic is pretty standard of Tamiya and gives you something to upgrade so although it's annoying I personally don't think it's a deal breaker. 

I think sometimes we need to remind ourselves of what it says on every single box that Tamiya print - Tamiya Plastic Model Company. Being made from plastic also means we get a greater range of different models from one company as the cost of machining lots of metal components only pushes the price up. The "majority" plastic RC kits from Tamiya are (or should be) very accessible from a cost perspective. 

[Badcrumble 4201]

At last, pre-release attention turns to the MB-01.

Keen to find out which hop-ups will fit -  dampers, etc

Hope the manual appears soon.

[Rinskie 510]

I'm just stoked knowing this body is coming soon. 

[Kowalski86 3030]

On 6/27/2023 at 10:53 AM, Sogogi said:

Just saw a vid released for mb-01.

diff/drivetrain/ suspension arms (except center shaft) remind me of tt-02… even drive shafts are those plastic with metal pins.. hmm

Yea...the suspension arms on the TT-02 are a big source of its sloppiness, can't say that I'm looking forward to them on a fidgety M-chassis.

Also, sourcing decent pinions might be difficult.

[Honza 936]

4 hours ago, Kowalski86 said:

Also, sourcing decent pinions might be difficult.

It seems that the TT-02 spur holder from high speed set should fit - that would allow for large variety of spur/pinion options.

I'm also a bit underwhelmed by the chassis. There are numerous ways to make a fwd/red car, and Tamiya chose the worst one. If it was actually a 4wd, it'd be a bit more interesting..

[Kowalski86 3030]

6 hours ago, Honza said:

It seems that the TT-02 spur holder from high speed set should fit - that would allow for large variety of spur/pinion options.

I'm also a bit underwhelmed by the chassis. There are numerous ways to make a fwd/red car, and Tamiya chose the worst one. If it was actually a 4wd, it'd be a bit more interesting..

The high speed gear set would help fix that, but you still have to contend with getting an aftermarket spur gear to fit.

The higher center of gravity motor position is interesting, I guess? Wonder how many people will build theirs like that.

Rant/Tangent incoming:

Tbh, I'm not feelin' any of Tamiyas recent releases. This particular release doesn't fix any of my gripes with Tamiyas on-road chassis. It's cheaper to make (sharing TT02 parts, filling the role of rwd and rwd), but none of the savings on Tamiyas end have translated to...oh I dunno, some cheap steel bearings standard? Maybe a steel or hardened aluminum pinion standard?

I get that friction shocks are easier to make and easier to export since you don't need to supply oil with them.

[Alex97 193]

On 6/28/2023 at 9:14 AM, ChrisRx718 said:

I think sometimes we need to remind ourselves of what it says on every single box that Tamiya print - Tamiya Plastic Model Company. Being made from plastic also means we get a greater range of different models from one company as the cost of machining lots of metal components only pushes the price up. The "majority" plastic RC kits from Tamiya are (or should be) very accessible from a cost perspective. 

I get that however there is zero excuse for them not making bearings standard considering they cost a few pence each. 

[Raman36 1655]

15 hours ago, Kowalski86 said:

Yea...the suspension arms on the TT-02 are a big source of its sloppiness, can't say that I'm looking forward to them on a fidgety M-chassis.

Also, sourcing decent pinions might be difficult.

M Chassis suspension have always had a lot of slop, with exception of the M concept cars.  

Most top racers argue against taking the slop out of an M03/M05.. they simply worked as they were.  For RWD such as M06 however the slop was an issue as the FWD cars were being pulled and steered by front wheels. RWD which pushed the car, created more issues in accuracy of steering etc. 

The slop also makes these cars more forgiving in crashes. Stiffer / tolerance parts break with ease.

[Pylon80 2628]

19 minutes ago, Alex97 said:

I get that however there is zero excuse for them not making bearings standard considering they cost a few pence each. 

Tamiya typically don't include anything that is outsourced from cheap third party suppliers, such as cheap bearings. They would rather provide plastic bushing. I don't think that chassis is meant to perform or be run more than on a very casual, scale model basis.