Kontronik Fun 600-17
 

Anybody have any thoughts on this motor? It looks to be the size of a L can motor. ~1700 rpm/v and what really caught my eye was that it can operate at up to 300 degrees F. http://www2.towerhobbies.com/cgi-bin...&I=LXGCW7&P=ML

That might be a good motor; segmented magnets like Lehners. Give it a try and let us know.

Yeah, Alawi is curious about the results as well, my guess is it will preform pretty good. I would buy one if the price here in Europe was more decent.

Kontronik can make you individual builds of this motor with 2100, 2500 or even 3200kV. The best for the E-Maxx would be 2100. This motor is very popular around the folks on rc-car-driver.de.
You'll need to make a flat spot on the shaft though.

That would depend on the amount of cells you want to run.

On 5S the 1700 is a nice in betweener for good runtimes.

Speaking about custom winds; You can get the plettenbergs maxx/bigmaxx in different configurations as well; the bigmaxx as a ~1650kv, and the maxximum as a 2200Kv.. (both available in 3 winds instead of 2 winds)

With a 2 year warranty! I would try one if they had a higher kv.

I am most impressed with it's high operating temp. 200 degrees is hot for other motors. This one is ok up to 300?

If it dies at 250, send it in for warranty replacement!

300 may be magnet temp, outside will likely be cooler though.

There is a movie of the 600/21 (2100kv) on youtube, here this is a nice addition as well;

15 bucks;

http://www.kd-modelltechnik.de/shop/...es/KT09400.gif

Is it OK to run it hot because it gets too hot like a Feigao? Being segmented magnets I would think it would run cooler like a Lehner of Neu.


EDIT:

Links to the movies Serum Mentioned.
http://www.youtube.com/watch?v=7wTyBPd7jo0
http://www.youtube.com/watch?v=h7FAnT7RMkI
http://www.youtube.com/watch?v=XsDxaA0vjPk

Hi,

This is my first post on your forum. But i am reading it since quite some time as i converted my 12 year old Crono S6 1:8 buggy 6 months ago. Perhaps i can share some insights on this type of motor as i am using a Kontronik fun 600/25 (2500rpm/v) with a kontronik jazz 80 controller.

This is a pic of my setup using 2 2s4p Konion 1100
http://www.braintrust.at/2007/ds/rc/crono_s6.jpg

I would compare this motor to a lehner 1930. 2 poles, dimensions: 36 x 59 mm (1.42in x 2.32in), Weight: 270 g (0.6lb), Output shaft 5mm. As already stated the rotor consists of segmented magnets and the overall feeling is that you have a quality motor in your hands.

Kontronik sells a custom heat sink which fits perfectly around the motor can. You can see it installed on my motor on the pic as well. Mine lies flat on the chassis so there is some heat transfer to the chassis plate.

The fun 600 motors have an open front/end bell which may concern some of you. So if you want to you may install some kind of protection comparable to the NEU motors one. Since i've driven another motor with open end bell in another offroad car and never had an issue with it i didn't even bother to protect this one. I think it has a good impact on motor temperature when the holes are not covered. But it sure depends on the position of the motor in your chassis.

I'm using 12 GP3700 NiMh cells or 4s4p Konion 1100 (from a Bosch 36V power tool battery). Gearing is 12/52 which translates to a top speed of around 37mph. As i'm using an eagletree datalogger i can provide you with some detailed informations.

Graph using my Konion 4s4p setup driving on concrete up and down: (accelerating, top speed, breaking, turn, accelerating and so on)
http://www.braintrust.at/2007/ds/kon...ste_minute.gif

As you can see my peak performance on this run was around 1000 Watts. When driving on a forest road which is similar to a small race track i usually see peaks of 1200 Watts using my GP3700. At the end of my runs (after 6 to 12 minutes depending on the batteries i use) my max motor temperature is around 70°C (158°F). Outside temperature here is around 30°C (86°F). Average Watts: 350W. Average Amp draw: 25-27Amps. My mah draw varies between 350-450mah per minute. The buggy wheighs around 4Kg (8.82 pounds) as my batteries are wheighing between 740g-826g (1.63-1.82lb).

From my point of view i can recommend this motor for buggy use. I think in any application where you can fit a lehner 1930 a fun 600 motor would also do the trick. Benefit: fun 600 sells at 150 Euro whereas a lehner 1930 sells at around 200 Euro. And the kontronik motors are usually shipped in less then a week.

When you use a Kontronik Jazz 80 controller (integrated switching BEC up to 18 cells, so no Ubec needed, cont Amps 80, burst amps 100, up to 18 cells, Car, boat, flight, heli mode) with a fun 600/25 you have a perfect match since both are built by Kontronik. This means no cogging at all even if you hit full throttle from a standstill.

Before i used the fun 600/25 i used an 8 pole Graupner 600M (2600rpm/V) and although Kontronik told me the Jazz 80 do not match with this type of motor (RPM issue since i got around 36000-42000rpm with an 8 pole motor which gets beyond the jazz 80s RPM limit of 150000rpm for a 2 pole motor) i could drive the Graupner Motor and also saw peaks of around 1000 Watts. But you have to fit a heat sink on the controller (otherwise it will thermal) which really is no big deal then it's perfectly suited to be used as a car controller.

Bottomline: the fun 600 and jazz 80 is a good combo for 1:8 application.

And for you guys wondering how the car looks with body ... there you go:
http://bt2007.braintrust.at/ds/crono_s6sl/img04.jpg

But the last few weeks i converted the car back to its original buggy look.

Greets from Austria,

Othello

Thanks for your post Othello, and welcome to the forum!

What is the diameter of the magnet of this motor?

A lehner 1930 uses a 19mm diameter rotor, which is 30mm long, judged by the can of the fun 600, it might be closer to the 1940 than the 1930? But that would depend on the diameter of the rotor.

Good question!

As i never had to open the motor, i can not answer your question. But i have found the following image on kontroniks website showing an open motor. Could also be a fun 500 not fun 600.

http://www.kontronik.com/Grafik/offen1.gif

The rotor is 19mm size, and yes it's between the 1930 and 1940. Kontronik released the Fun-600 with built in heatsink and they called it the Mambo.
http://www.kontronik.com/Mibo/250Mambo.gif

Hi Othello, I believe I have seen a video of that buggy somewhere, in the woods, on road and on grass with some outtakes at the end. I was most impressed, in fact it gave me a big push towards me getting my own scale 1/8th buggy project going.

Any chance of a link to it here?