Latest brushless motor news
#1
Posted 29 November 2021 - 03:44 PM
- Alchemist likes this
Cry like a baby, drive like a girl, walk like a man.
Give me enough rope and I'll build a fast car... or hang myself?
#2
Posted 29 November 2021 - 04:58 PM
That's great to see that other slot car enthusiasts are looking into making the brushless motors work.
Thanks for sharing Mike!
Ernie
#3
Posted 30 November 2021 - 10:34 AM
This setup seems to be a big advance in the design. I guess it didn't work that well as they raced a different setup.
- NY Nick and NSwanberg like this
???-2/31/23
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#4
Posted 30 November 2021 - 11:23 AM
At this point it is no news.
when someone comes up with a package that you can put in your car for X#$, or at least detailed instructions that the average individual can follow then it will be something.
Until then it is just some guys playing around with some different tech. Cool but so far it has no real effect.
#5
Posted 30 November 2021 - 06:48 PM
destroyed a couple of motors figuring how to replaced the shafts, but sourced the right tools and it is a snap now.
the only caution is to wire the polarity correctly, or you blow the esc!
sort of fun to be hot rodding this thing...
it will be more accessible when more esc for slot cars becomes available
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Cry like a baby, drive like a girl, walk like a man.
Give me enough rope and I'll build a fast car... or hang myself?
#6
Posted 30 November 2021 - 07:57 PM
Where can I get a brushless motor setup like you have, MIke? I've seen some of the other threads on it, and it looks interesting. And what kind of performance do you get with it?
#7
Posted 30 November 2021 - 09:00 PM
motors are available from any drone vendor. 110x series motors. they are about 4000 - 8000kv specs.
xxxxkv x track volts = rpm
I am using Emax, check their website -- https://emax-usa.com...06&type=product
that's the easy part...
the hard part -- esc must be tweaked or designed for slot cars application.
Mack and company are using an esc designed for slot car, not available for the general public as of yet.
Tom "Bags" has a tweaked esc ( I have been using it )
the Mack esc turns on at 2v I believe, which make it very usable for flat tracks ( the chips turns on at 2v )
the Tom esc turns on at 5v (pretty much standard drone/rc car ), a bit difficult for flat track ( but he is still playing with it to make it more friendly ), very usable for high downforce high speed tracks
as for racing them... eurosport and G7 are the only classes they are legal in as of now
Mack and Budge has shown they are competitive in eurosport
theoretically, I worked out G7 times are possible and have a motor that is strong enough to do it, but I have no G7 experience... but will try to put together a G7 package
- Half Fast, Alchemist, Samiam and 2 others like this
Cry like a baby, drive like a girl, walk like a man.
Give me enough rope and I'll build a fast car... or hang myself?
#8
Posted 01 December 2021 - 02:31 AM
#9
Posted 01 December 2021 - 04:45 AM
The motor "base" with the mounting holes is aluminum, I made a brass bracket that the motor screws to and soldered that to the chassis.
Mack is a chassis designer/manufacturer and he made chassis specifically for brushless motors.
- Bags likes this
Cry like a baby, drive like a girl, walk like a man.
Give me enough rope and I'll build a fast car... or hang myself?
#11
Posted 01 December 2021 - 07:14 AM
- Alchemist likes this
#13
Posted 01 December 2021 - 08:26 AM
Thanks Mike, that looks interesting. At this point, I'm not as interested in racing it as in having a very low-maintenance play car.
Tom, I assume that you're the Bags that Mike mentioned? Where do you have the ESC available to buy, and what is the cost?
#14
Posted 01 December 2021 - 09:21 AM
the only caution is to wire the polarity correctly, or you blow the esc!
So if you come out of your slot and go into another slot going the wrong way you blow the esc?
If so you might want to install (I think they call it) a bridge relay or something like that. It will only allow electrical current to go one way. I'm not much on electronics so don't chastise me unto death if I'm wrong about this.
Jim "Butch" Dunaway
I don't always go the extra mile, but when I do it's because I missed my exit.
All my life I've strived to keep from becoming a millionaire, so far I've succeeded.
There are three kinds of people in the world, those that are good at math and those that aren't.
No matter how big of a hammer you use, you can't pound common sense into stupid people, believe me, I've tried.
#15
Posted 01 December 2021 - 10:05 AM
In life and in technical advances:
"First they ignore you, then they laugh at you, then they fight you, then you win”
Cheers
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Bill Botjer
Faster then, wiser now.
The most dangerous form of ignorance is not knowing that you don't know anything!
Never attribute to malice that which is adequately explained by stupidity
#16
Posted 01 December 2021 - 12:35 PM
Thanks for the info Mike
Barney Poynor
12/26/51-1/31/22
Requiescat in Pace
#17
Posted 01 December 2021 - 03:09 PM
All this is a learning process and will get refined.
As with neo HO cars, when Nick Toma drop one of the first ones in the slot,,, it was fast, but hit the wall it became a kit. Now they are missiles and bulletproof
Cry like a baby, drive like a girl, walk like a man.
Give me enough rope and I'll build a fast car... or hang myself?
#18
Posted 01 December 2021 - 03:26 PM
So if you come out of your slot and go into another slot going the wrong way you blow the esc?
Or a newbie track marshall !
Don Weaver
A slot car racer who never grew up!
The supply of government exceeds demand.
L.H. Lapham
If the brain-eating amoeba invades Washington
it will starve to death...
#19
Posted 02 December 2021 - 03:59 AM
Seems like there ought to be an opportunity to use the dynamic braking voltage to keep the ESC powered longer while in race conditions or has somebody already thought of that?
Remember the Steube bar! (ask Raisin)
SUPPORT YOUR LOCAL RACEWAY!!
"The denial of denial is the first sign of denial." Hank, from Corner Gas
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Nelson Swanberg 5618
Peace be with all of us and good racing for the rest of us.
Have controller. Will travel. Slot Car Heaven
#20
Posted 02 December 2021 - 01:51 PM
Do these motors/ESC's permit electronic braking?
Cheers
Bill Botjer
Faster then, wiser now.
The most dangerous form of ignorance is not knowing that you don't know anything!
Never attribute to malice that which is adequately explained by stupidity
#21
Posted 03 December 2021 - 08:22 AM
Do these motors/ESC's permit electronic braking?
Cheers
Yes plenty of brakes just like a brushed motor.
#22
Posted 03 December 2021 - 09:04 AM
A diode can provide protection, planning to install on power lead.
All this is a learning process and will get refined.
Would the diode in the power lead effect the breaking?
#23
Posted 03 December 2021 - 04:32 PM
Hmm... Maybe a thermal fuse? MOSFET?
Cry like a baby, drive like a girl, walk like a man.
Give me enough rope and I'll build a fast car... or hang myself?
#24
Posted 07 December 2021 - 04:33 PM
raced rhe car in UK ISRA eurosport race at the weekend ,finished 6th which is a good start
about where i would have finished if id run my regular euro car .did everything i wanted ,mainly it was a reliability test .
ive probably done well over 1000laps ,no loss of speed just keeps going
whole car is 5 grams lighter than brushed car .
Tom
ill have a chat when im not working next
need to build a drag car for friday
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Richard Mack
#25
Posted 09 December 2021 - 08:40 AM
Hmm... Maybe a thermal fuse? MOSFET?
If a mosfet can be used, will it be normally open or closed ? Which side would it be put on, positive or negative?