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caprimanuk

im new here .

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Hi all , I just found this site I never knew it exhisted ! i have been enjoying tamiya cars for quite a while now . My 1st ever was a Cheetah , then I had grasshopper , hotshot , hornet and a few others which i cant remember !

I now have a twin detonater , just finished building it yesterday, put all the radio gear in from my old Mini cooper ( which is now for sale) then found out that the one servo installed for the steering has decided to give up working ! Just keeps on spinning for some reason >!??! Just thought id say hi !

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hi there,

Welcome to the club! And welcome to the Twin Detonators Driving Club (I just made that up so we're the only members thus far...) What spec is yours? At the moment, as I have only one Super Stock Type S motor, mine is rear wheel drive, 20t pinion, Nothing in the front gearbox, and all that added to gether means a very wheelie happy truck!

Anyone want to join the TD drivers club (not really a club, just a chat on here every now and again.)

I'd add pictures of my detonator, but i need to:

A: get £15 saved up

B: subscribe, from what I hear, its worth every penny.

If anybody has got a twin detonator, wild dagger, baja chimp champ or a baja king, I could do with two front Lower suspension arms - good prices paid!, its for a top secret project [:)]

bye for now

James

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I'm in the TDDC too [;)]

My Twin Detonator would've been hopped up with a nice pair of matched Kyosho 22 turn motors this morning, if I hadn't found the old screws were stripped, which stopped me from putting the new motors in, and I couldn't find any 25mm x 3mm bolts to replace them [:(]

Once I get the motors in, I might up the pinion from the kit 18T to 20T as it gives a better speed too, the truck handles well, but is a bit too slow for my liking...

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Welcome caprimanuk! Sounds like you are a Tamiya veteran! It also sounds like you have stripped gear in that servo!

James, It's Baja Chump not chimp! [:o)] And yes the membership is worth the £15 ($27.60US)!

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new servo needed..

Dead cheap nowadays in your local model shop.

Also, like your user name !

I might of been escortmanScotland(mark 2)[:D]

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thanks for the replies guys ! Are you all located in the UK ? My T/D is totally standard , but would like an esc installed but dont know what to buy as it has 2 motors as you guys know !

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quote:
Originally posted by caprimanuk

thanks for the replies guys ! Are you all located in the UK ? My T/D is totally standard , but would like an esc installed but dont know what to buy as it has 2 motors as you guys know !

id="quote">id="quote">

Hi Caprimanuk. TC members are from all over the world, but there are a large number of UK members. There is a get together planned for the August Bank Holiday weekend if you're interested - do a forum search on 'Kidderminster' to get the details. As for an ESC for the T/D, the 'standard' for twin motor trucks seems to be the Novak Super Rooster but that's as expensive as the kit [xx(]. I've also heard that this one:

http://www.modelsportuk.com/?CallFunction=...on&ItemID=11311

is worth a look. Again, if you have a dig through the forums with the search function and look for 'ESC' along with 'Clod' or 'Dagger' you'll probably find more suggestions. HTH. David

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Hi Caprimanuk,

welcome to the club. Not all members are from the UK, I'm living in Belgium and the rest of the club members live around the whole globe. After seeing some of their work I sometimes think some of them are extra terrestrial [:P]

Maybe Chris could make some kind of statistic about the different countries which are represented by the club members. I'm sure the UK will probably be the first in the list but it would be nice to see which countries follow...

cheers,

ShowRide

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thanks for that ! Ill do a search and i will also have a word with my local friendly model shop , got to go there tomorrow to get a new servo so ill ask about the esc at the same time . I dont have loads of models only the one like i said the T/D , as the radio gear came out of my tamiya mini cooper so thats for sale if anyones interested , its the MA01 chassis . No longer needed so its cheap for someone here maybe ? What are the meetings like , are they fun or a nightmare with roudy youngsters ?

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Welcome to T/C hope you have an enjoyable stay!!

The meets are loads of fun, as the majority of us are all around the 30+ mark there's no rowdy kids at the meets, just a load of rowdy NON-grown ups!!

There's a saying I heard recently that sums us all up...

GROWING OLD IS MANDATORY,GROWING UP IS OPTIONAL!!id="red">id="size3">

Oh sorry nearly forgot Ryan, now there's a menace, real troublemaker that one!![;)] (only joking!! He's the Chief T/C Marshall!!)

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quote:
Originally posted by caprimanuk

thanks for the replies guys ! Are you all located in the UK ? My T/D is totally standard , but would like an esc installed but dont know what to buy as it has 2 motors as you guys know !

id="quote">id="quote">Yep, I live in Essex.

For the ESC, you can either spend a small fortune on one made specially for twin motors (they are generally called "truck" something or another) or alternativalely use the excellent resource at Novak which shows what you need to specify for running twin motors off a normal ESC. The basic rule is that you half the number of turns you will be running, double the amps and get an ESC which can handle that. So for me, running 22 turn motors, I need an ESC which can handle 11 turns or lower.

I got an Mtronics Sport RV last year when they were knocking out the old version at half price. It's designed for (I think) down to 7 turns, and has been reliably running 2 stock cans for a few months now, and doesn't even get warm after a long stressful run. Once I get the new 22 turn motors wired up, I'll let you know if it blows [:P]

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thanks again , the wifey thinks im a bigger kid than our 8 year old daughter ( she may be right ! ).[:P] As for modifications on the T/D dont know what to do 1st , as I previously stated ive had so many tamiyas through the years , and all of them stayed totally standard ! Sounds like a good day out that meeting in august , how many people usually turn up ? Looks like I will have to buy some sort of quick charger I can use in the car !

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quote:The basic rule is that you half the number of turns you will be running, double the amps and get an ESC which can handle that. So for me, running 22 turn motors, I need an ESC which can handle 11 turns or lower.

id="quote">id="quote">

Unfortunatelly those aren't in a linear relation, a 13T motor draws significantly more then double current then a 27T, had read that a good rule of thumb was to add 10 turns when driving 2 motors with one ESC and yesterday at a test with a Clod with 2 stock motors (27T) it seemed correct as a 17T limit ESC I used was at its limit.

Cheers

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quote:
Originally posted by caprimanuk

thanks again , the wifey thinks im a bigger kid than our 8 year old daughter ( she may be right ! ).[
:P
] As for modifications on the T/D dont know what to do 1st , as I previously stated ive had so many tamiyas through the years , and all of them stayed totally standard ! Sounds like a good day out that meeting in august , how many people usually turn up ? Looks like I will have to buy some sort of quick charger I can use in the car !

id="quote">id="quote">

Ditto here - my 15 yr old gets very exasperated by the 'playing with toy cars' although the 10, 8 and 6 yr olds that my g/f and myself have between us are a bit more enthusiastic!


The first mods for the T/D (or any car for that matter) should be ball-bearings, an ESC and oil-filled shocks of some sort. The first two will help with run time and control and the shocks will help the handling. I guess motors would be then next - I can second the vote for the Kyosho Mayhems as they are powerful and (relatively) cheap, although I've only used them in a 2wd car. They also come in a 'reverse' version which is important for a twin-motor truck
If you keep an eye on this thread: http://www.tamiyaclub.com/xforum/topic.asp?TOPIC_ID=11366 you'll get an idea of who's going. I get the feeling that the turn-out will be quite good - look forward to seeing you there [:)]
Yes, a 12v quick charger would be a good idea [;)]

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quote:
Originally posted by DJTheo
quote:The basic rule is that you half the number of turns you will be running, double the amps and get an ESC which can handle that. So for me, running 22 turn motors, I need an ESC which can handle 11 turns or lower.

id="quote">id="quote">

Unfortunatelly those aren't in a linear relation, a 13T motor draws significantly more then double current then a 27T, had read that a good rule of thumb was to add 10 turns when driving 2 motors with one ESC and yesterday at a test with a Clod with 2 stock motors (27T) it seemed correct as a 17T limit ESC I used was at its limit.

Cheers

id="quote">id="quote">Good point DJTheo, I should've missed out the bit about current as I tend to base that on a completely unscientific gut feeling based on the price and make of the ESC rather than calculation. As far as the turns go though, it depends on the way in which the motors are wired (for more torque or speed), but for the "normal" way of wiring them in parallel, the half turns is correct - it's explained in a lot more detail on the Novak site but I was (over)simplifying it, as I found it confusing at first....

I've found from experience with ESC's, that "add a bit for luck" should always be added to any calculations, as they don't like being driven on the limit (so I would never use an ESC rated at 27 turns on a 27 turn motor, instead I would choose one rated at 20 turns).

Re caprimanuk's question about the order to hop up:

  • Bearings

  • Oil shocks

  • ESC

  • 20T pinions

  • hopped up motors with lots of torque and one designed to run in reverse

would be the order which I would hop up the truck.

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Thanks again , what a good forum this is ! !I have purchased a new servo for the steering so tonight is going to be the 1st run with it , in the back garden . I asked in the model shop about an esc , and bearings and a quick charger . They said that an unlimited esc will be ok for it which is about £30 , bearing another £30 , and the dual purpose quick charger which can be used in the car or at home in the mains another £30 , he said that this particular charger charges the battery pack in 15 minutes ! ! Didnt think they charge that quick ?

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Careful with the charger, it depends on the capacity of the battery, but it won't charge in 15 mins! Also, make sure the charger is a "delta peak detect" type of charger (at 30 quid it should be), as these monitor the batteries and switch off the charge when they are full, avoiding damaging them.

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quote:
Originally posted by jozza

Careful with the charger, it depends on the capacity of the battery, but it won't charge in 15 mins! Also, make sure the charger is a "delta peak detect" type of charger (at 30 quid it should be), as these monitor the batteries and switch off the charge when they are full, avoiding damaging them.

id="quote">id="quote">

so may i ask whats the normal time on quick charging , and normal charging ?

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That's a difficult one to answer, as it depends on the output power of the charger, and the capacity of the cells you are charging. As a rule of thumb, the cheaper peak detect chargers will charge a 2400 stick NiCd in about 35-40 mins at 3amps, a 3000 NimH pack would take an hour to charge from being completely flat.

The chargers I used to have for Nicd cells (1700 and 2000) would take about half an hour to charge the pack, and they were (still are) "quick" chargers.

The peak detect ones are far better though, as they charge the battery fully by testing it continually, rather than just working on a timer circuit.

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quote:
Originally posted by caprimanuk

They said that an unlimited esc will be ok for it which is about £30 , bearing another £30 , and the dual purpose quick charger which can be used in the car or at home in the mains another £30

id="quote">id="quote">

An unlimited ESC at that price is probably of dubious quality - which make are they offering? Ripmax? Ball bearings sound pricey - try ebay seller *pipistrelli* - he will do a set for £17 (assuming same as the Dagger?).

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thanks for the replies , think ill come here 1st to see what people have for sale before I buy ?

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Always a good idea, and check out some of the online model shops for chargers too. I like to use Apex and Modelsport for a lot of stuff like that.

There are a few topics about chargers to use, if you use the forum search and look for "chargers", "batteries" etc you should be able to get some useful information..

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Just a quick update, the Kyosho Mayhem motors are in now, the speedo didn't blow and I've left the stock 18T pinions in. The truck flies now, and it wheelies! I'm well pleased with that. After 15 minutes tearing around the garden the 2000 battery pack was still going strong, and the motors and speedo were cool to the touch.

I doubt if I will bother moving up to the 20T pinions now, as the 18T ones give a lot of fun and it seems that everything is running nicely now.

Well happy [8D]

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Ripmax 'Pro Peak' chargers are great, I've got 3 of them and they have never given me any trouble.

They will peak charge my Sanyo 2400's in about 40 minutes from dead, they run off 240v mains and 12v car battery which is well handy, they do another version that allows you to vary the charge current for a faster charge or slower for MI-MH packs.

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