Someone jump on this deal!!!KonTronik
 

Hey for all you guys looking for really good deals for high quality motors


this is not my add but it is sure worth it

http://www3.towerhobbies.com/cgi-bin...&P=WR&I=LXGCW7

Based on what I've heard, the quality of the Kontronik motors is equivalent to the quality of Feigao motors. This motor reminds me of the Feigao ferrous-loss free 580 6 pole motor.

Umm, where's the deal? The Fun600 motors have always been that price.

Yep, the kontronik motors are not worth 2 bills. Thier escs are nice. That is the same price that they always are. Now if you know what tower pays for them, well you would laugh.

No offense to you, BrushlessBoy, but you probably thought that since the motor was "big" it's a deal at $190.

Actually it is about the size of a L can feigao. So not that big. Probably a good buggy motor on 6s.

It's more of an L sized motor indeed..

Also $40 cheaper here...

http://infinitehobbies.com/moreinfo.php?part=KONG2200

Our own Sherlock..

I was about to say the same thing! Arct1k certainly does find some stuff, he must have nothing better to do, or an army of trolls that do his bidding! All he has to do is command them, "find kontronik motors cheap" and they will!

Opps sorry guys, i thought there quality was up to par with there speed controller, srry for that :D :slap:

I like my FUN600s. The FUN600-1700 worked awesome with 36V for a while. They are higher quality then Feigao.

I dissassembled my Fun 600/11 which i used in a 1:8 buggy with 10s1p A123. It only lasted a few runs. On it's last run it kind of overheated (hot sommer day) while the temperature probe of my eagletree recorded 70°C (158°F) placed on the heatsink. RPMs suddenly went crazy high. The motor started to cogg at startup and it sucked twice the amps it used before this incident.

After seeing a smaller Kontronik Twist Motor opened, i was wondering if the bigger Fun 600 was built the same way. The twist motor had an insulation wrap around its windings which is not ideal to transfer heat to the can.

I always wondered what happened exactly to my Fun 600 motor and why it did "overheat" while only showing 70°C (158°F) at the heatsink.

Here are the pics:
http://bt2007.braintrust.at/ds/rc/fun600_01.jpg

The end bell is glued with silicone
http://bt2007.braintrust.at/ds/rc/fun600_02.jpg

The magnet is divided in 3 segments (still had a strong magnetic field so i didn't demagnetised the rotor -> my first theory). But look at the black marking on only one magnet segment.
http://bt2007.braintrust.at/ds/rc/fun600_07.jpg

One of the magnet segments came unglued and was not properly aligned anymore. On its last run one magnet rotated around the shaft.
http://bt2007.braintrust.at/ds/rc/fun600_04.jpg

http://bt2007.braintrust.at/ds/rc/fun600_06.jpg

Front bell was also glued
http://bt2007.braintrust.at/ds/rc/fun600_08.jpg

The windings are wrapped with a yellowish foil and then placed inside the stator
http://bt2007.braintrust.at/ds/rc/fun600_09.jpg

I wasn't able to push the windings outside its stator. But have a look at how the windings of a Kontronik Twist motor are wrapped.

picture taken from another forum (offroad-cult)
http://www.offroad-cult.org/Bilder/2...Twist_28_3.JPG

I think this is the reason why the magnet inside the motor came unglued. Heat builded up inside the windings. Heat could not be idealy transfered to the can. This is why i measured a much lower temperature on the outside of the motor.

My conclusion is: Those Fun 600 motors easely can push a 1:8 Buggy or a New Emaxx. But do run hot and can not be effectively cooled from the outside. In Heli forums those motors are known for their almost impossible way to be cooled. So if you run them properly geared in a not to heavy vehicle they will show good performace and heat built up will not get critical. But if you slightly overgear them or are planning to run them for a longer time, temperature built up inside the motor could become critical as their seems not to be an effective way to cool them from the outside.

Here are some comparision pictures between the Fun 600 and a Neu 1512

http://bt2007.braintrust.at/ds/rc/fun600_12.jpg

http://bt2007.braintrust.at/ds/rc/fun600_11.jpg

I now would always choose a Neu 1512 over a Fun 600 because temperature of the Neu windings is directly transfered via the stator to the motor can. So it makes sense to cool the motor from the outside (Fan, heat sink ...).

The Kontroniks are not that bad and I still believe they are better than the Feigaos. You should know that the Feigaos are heavily based on the Kontroniks more than the Hackers.

I once said that they are as good as the Lehners, but after what I've seen and heard, I proudly take back my words.

The Lehners and Neus are unlike any other. Hands down.

Hmm, they really do look like a feigao inside, but the Neu looks very much like the Hvmaxx motors inside. For the money too, the Neu wins hands down.

I just wish more people used the pletts- precious little experimenting done due to the high prices....

Well Neil, I have a maxximium in my crt.5 on 3s and have been very happy with it. I will be trying it out in the new emaxx on 4s, as I now have a novak hv6.5 with the 5mm shaft for the crt.5.

I have a pair of trakpower lipos and a quark 125b to run the plett. I will gear for about 40mph.

Great Information Othello! Thank you for the post and the comparing pictures. :yes:

I've always heard Neu Motors as being the "rage". Now I understand more of why. It's a much better design.

That's a multipole field if I'm seeing this correctly. Is that a 12 pole field? How many poles are there?

Also, How many poles does the Neu armature have?

I might come to appreciate the quality of Neu now that I understand better. Hmmmmmmmm..........

Cool- just dont go blowing it up on my account! :lol:

From the limited info I have read, it sounds like the Pletts prefer a larger load on them compared to other motors (higher pole count), but that kinda makes me nervous about how many amps it will draw through the esc it is connected to and such... so sexy though, I love those motors.

Don't worry, I have no idea what I am doing so it will be ok!

Here is the suggested setup in the calc. IIRC the motor is 3100kv, correct me if I am wrong!

Differential Ratio: 2.8461538461538462
Transmission Ratio: 1.8333333333333334
Other Ratio: 1
Spur Tooth Count: 65
Pinion Tooth Count: 18
Total Voltage: 14.8
Motor KV: 3100
Tire Diameter (inches): 5.75
Tire Ballooning (inches): 0
Motor Current Draw: 0
Motor coil Ω: 0
Spur/Pinion Ratio: 3.61 : 1
Total Ratio: 18.84259 : 1
Tire Circumference (inches): 18.06 inches (458.83 mm)
Total Motor Speed: 45880 RPM
Vehicle Speed: 41.65 mph (66.91 km/h)
Effective Speed Rate: 2.81 mph/V (4.52 kmh/V)
Estimated Adjusted Speed: 39 mph (63 km/h) - 5% loss
Effective KV Value: 3100

http://www.plettenberg-motoren.com/U...tschrauben.htm

They dont make it easy to find the Kv data, but I tracked it down.... :yes:

hi

the maxximum on 4s in the maxx will be nice. under real load i 'calculate' more with around 2700 rpmv.

btw here a pic of the inside of a plettenberg. looks kinda 'similar' to the neu.

http://62.2.107.106/~beat/images/24-...imaxx_(13).jpg

bye
rhylsadar

@sikeston34m
correct: 12 pole field and 4 pole rotor

http://www.braintrust.at/2007/ds/rc/neu1512_img04.jpg

The only thing i don't like about those Plettenberg Maxximum/Bigmaxximum motors is their high KV. Those motors need good batteries and suck a lot of Amps (due to their high kv rating). But i red they can be wound differently at Plettenberg to get lower kvs. Other than that, they are one of the only motors truely built for offroad use. I almost bought one, but due to their integrated fan they were too long for my buggy project. Neu motors do have a good selection of windings to fit the motor to the choosen voltage.

Yep, that is the only thing that puts me off really, and I dont fancy messing around trying to get a custom wound item- could cost alot of money and time, especially since Im over the pond. I wonder if anyone makes a motor heatsink of that design for Neu diameter motors... :whistle:

Hmm, wonder what the inside of an aveox motor looks like? I have a few, any ideas how to remove the endbells? I am guessing the front is screwed on, and the rear pressed on due to wires coming out the end?

Thanks, I figured the spec was unloaded. It required me to step up 2 teeth on the pinion from what i figured in the crt.5 to get the desired speed. It works well on 3s, and never even gets warm. So I figured more load would not bother it. Plus I want the c50 hacker 14l out of the max and in the hyper8 buggy for testing on 6s lipo.

I toasted a Kontronics FUN1800. The thing got hot faster than the feigaos. It got over 300 degrees F on its last run. Oops....:whistle:

Amazingly it still runs, but the burning smell never went away.

Took it apart and it still looked OK, just smells funny. Its been sitting in the motor box for quite a while now. If anyone needs a pretty paperweight or good hard drive eraser I'll let it go cheap. :mdr:

http://i66.photobucket.com/albums/h2...z/CIMG2040.jpg
http://i66.photobucket.com/albums/h2...z/CIMG2043.jpg

i don't know how many A they really draw. your are right however on the very limited windings. but remember when those motors showed up. i can not date it exactly but when i made my first brushless savage in 2003 they were already there and quite common. so i guess they appeared around 2001 or 2002 or earlier? and what were the applications those times? mostly (3906) e maxxs running with 12 or 14 cells. a maxximum or bigmaxximum is perfect for such a setup of voltage and weight. by now things have developed and now converting truggies etc is common and the people have seen that high voltage setups are more efficient etc. especially due to the increasing use of lipos that made it more easily to go HV without too much weight. and so lower kv motors were needed and used. so plettenberg maybe should react to this with a lower kv bigbigmaxxium with around 1500rpmv.
when i started i got even recommendations of a C40 10L hacker for a savage.... and there were not few that used lehner basics in etc. of course there were also others like promod that already were with the big lehners and many cells. however it was not common to use HV setups with low kv motors at back then and i guess this is part of the reason why there are not more windings available.

bye
rhylsadar

Plettenburg Motors
 

I have a Plettenburg "Big Maximum" motor on the way now, so once we get settled into our new home in Korea (July) I will post up some photos, vids, and stats from my experiences. From what I have seen and heard they are probably at the top of the heap in quality and performance. We shall see.:yes: