Problemchild
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Posts posted by Problemchild
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sweet
and wahst the difference (see my link to pdf spec sheet) between 8.5R and 9.5T
JJ
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well its LiPo compatible BUT may look for a better solution when i get LiPos (inc connectors)
i have a laser thermometer for my road car to monitor temps as its highly modified so will keep my eye on it
so much of the info on these BL motors is confusing...... some using T some using KV some 380 and some 540
JJ
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the motor says "max ampage 55amps" though and the ESC deals with up to 60amps (which will have a degree of safety margin in there)
the tamiya ESC is disposable at £15 anyway
JJ
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aw - sorry
i feel guides are important to encourage people to try and once they do they will try more off their own back and start to think outside of the box and maybe come up with their own fab solution
power to the people!!
JJ
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ok - done.... wasn't exactly clear what was needed and why initially and when the DF part number was searched it only brought up the large gear (which i already have)
Thanks
JJ
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15 hours ago, Backlash said:
Exactly.. (I'm guessing that is the main reason why you suggested that he buy a Speed Passion 10.5 motor in your earlier post..)
Maybe he should have bought a Speed Passion Reventon S Motor and ESC combo instead.. It would have been cheaper than buying a motor and ESC separately...
I am here you know
haha
confused then as the Tamiya ESC is rated (just @ 60A) past what the max draw of the motor says here...
JJ
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ok......after hours of scanning youtube and the tinterweb of brushless setups on the TT02B i've made some purchases
(i really shouldn't stay up late along with a credit card!!)
ordered
1 x Speed Passion V3.0 Competition BL 8.5T (modelsport £34)
1 x DF02 Parts Bag A (modelsport £20)
1 x DF02 gear bag (ebay £6)
1 x BL 4.0mm male bullet set (ebay £4)
2 x LiPo buzzers (ebay £4)
the diff parts are on back order with modelsport so hanging off buying LiPo batteries until next month i think
thanks for all your help guys
JJ
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such a lovely car
JJ
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1 hour ago, Jason1145 said:
I don't think you can beat the cheap EBay combos around at the moment if you want a plug n play brushless motor and ESC... Like these ones here:
3000kv
3930kv
These come with deans connectors and all motor wires pre soldered so you only have to locate them in the chassis and programme them as you wish ( lvc, punch, drag brake etc)
But these are the smaller 380 sized rotors in 540 size cans so some people don't like to use them, I think they might be ok for these lightweight Tamiya's though, but not in heavier 1/10 short course trucks etc.
just throwing some ideas out there. With of those two systems would be happy on 2s, a GPS top speed recorded and a heat gun are handy tools to have too. ( I've destroyed an Iphone using it as a GPS, never again!)
these seem to be Leopard copies - which as you say are only really 380 motors packaged in a 540/heat sink wrap
the Leopard BLs seem to get good reviews
looking at LiPos on ebay thats another minefield haha
JJ
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thanks
i am fully expecting breakages (i habe a full TT02B kit spare)
i'm not expecting to drive full speed everywhere - just would like to surprise people
in its current state, a drop curb will flip the car anyway
not sure if the ebay specials are worth the punt are they?
i guess i started this thread to see what people are running brushless and i'm getting some good pointers
JJ
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oooooooh - mad bull not monster beetle - apologies
JJ
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also..... it seems as the diff itself is tough enough but its the end bevel gear that suffers
so is it not just worth getting the large GPM gear for the TT02 @ £9 and a metal input/shaft gear?
JJ
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4 1/2 is pretty young
so the MB is defo for you haha
its a GREAT vehicle and v forgiving but easy to flip
make sure you get the gearbox mod too
JJ
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bit of a trim along the lower edge of the bumper and it will look like every fast 90s pug on the road haha
JJ
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yeah - its the MS so
- TT-02 Aluminum Propeller Shaft
- TT-02 Aluminum Propeller Joints
- TT-02B FRP Front Damper Stay Set
- TT-02B FRP Rear Damper Stay Set
- TT-02 FRP Battery Plate & Transponder Stay Set
- DF-02 Two-Way Aluminum Rear Uprights
- Full Ball Bearings
JJ
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cheers pete haha
i do need a LiPo one if I go there BUT they aren't a big outlay
people have been v surprised at the speed of the car already so maybe i'm throwing good money into a few mph more
maybe i should see what speed the car is doing as is..... surely there must be a gps speed app for the iphone (plus a load of bubble wrap haha)
so (on top of all the parts already coming) i think my shopping list currently is.....
1 x 5000kv brushless (£30)
1 x 5000mah LiPo 2s + charger (£40 or same price for 2x on ebay)
1 x LiPo low charge alarm (£3) think i will try the tamiya ESC
and try and work out this metal diff set up (£30 - or £34 if i get the gpm 8 piece kit specially for the TT02)
JJ
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good vid and love the colour of the pink one
BUT
my TT02B MS is already quicker than that with brushed and nimh
i'm in the UK - entered the details on my profile when registering - will try again
JJ
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On 21/06/2014 at 11:22 AM, mike_o said:
Yes, I believe you'll need the DF-02 #9400152 metal parts bag A (and the DF-02 #51080 Gear Bag (Rising Storm Spur Gear) if you want to build the entire diff.). The 0.6 module motor pinion is not part of this assembly.
I received mine yesterday, and incidentally I broke one of the gears today when trying out a 36mm outrunner...
Note the missing tooth on the left hand side of the bevel pinion gear
I have noted that some of the other members only replace the plastic bevel pinion gear with a metal one, so very few of the parts are being used. However, the A parts also contain a steel motor pinion and 8 nice brass ball connectors, which can replace the sloppy step screws that holds the oil shocks, so it's not a total waste
question..... as this is confusing me somewhat without more detailed pics
so what we are doing is TOTALLY replacing the TT02 diff (4 bevelled gears) with the DF02 diff (3 bevelled gears) and then modifying the bevelled drive gear so it fits? struggling to find the parts bag for the housing - seem to come as separate parts with the casings being #0555104
and all this works with the TT02 high speed spur gear?
AND, i'm assuming the front can remain plastic BUT there are enough parts in BagA to do both or have a whole spare diff??
oh - and i have the MS that has the alloy drive shaft and prop joints
JJ
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21 minutes ago, Effigy3 said:
Conclusion
If you want a suggestion for your TT-02B based on my personal experience that will result in a fun, balanced and seriously quick rig, here it is:
- LRP Spin Super ESC
- Speed Passion 10.5T Competition v3.0 MMM motor
- Any decent brand 2S, 5000 mAh LiPo with Deans connector
- Do the DF-03 gear box mod or install the GPM metal gear hop-up
Good luck with your TT-02B rocket project. May it not go the way of Elon Musks Space-X recent launch attempt.
fan- -tastic
the gear box mods were on my to do list (just researching it more)
thank you lots
JJ
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god thats complicated haha! i remember my dynatech motor was the same.....all i knew was the battery died really quickly if fully rotated ha
JJ
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jason thats all excellent info
i want fun - 50mph isn't essential
the TT02B is currently running the 3300nimh and a firebolt 15Turn brushed and its fast but not quite there
i have a 20T pinion on its way, yeahracing motor mount and a highspeed spur
the speed passion is slightly tunable - thoughts??
JJ
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rob - fab!!
i've seen the combos and they also range from £40 to £200 .... aargh!
i've seen the charger bag (fire protection i'm assuming) and modelsport has LiPo chargers from £10
I think the ESC has the low voltage cut off built in (maybe i'm wrong)
JJ
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oh - thoughts.... when a T rating is given on a BL motor is this referring to the pinion??
JJ
and wahst the difference (see my link to pdf spec sheet) between 8.5R and 9.5T
Brushless, ESC and LiPo #confused
in General discussions
Posted
ha - but its rated for the current draw .... just
the ESC doesnt really have any hatred (or turn-ism) against the physical amount of wire within the motor
tbh the specs of ESCs shouldn't really state what they can handle in terms of turns (its only really there to guide you to motors that should be compatible as that is how they are marketed). turns are not directly correlated to current draw as wire quality and thickness can play a part on its ability to draw current
having said that, RC guidance states i should have 20% spare draw in my ESC but i will only have 10%
JJ