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-   -   14s Brushless Savage (https://www.rc-monster.com/forum/showthread.php?t=26826)

Jahay 06.21.2010 11:09 AM

hmmm i remember strapping tape being quite gd... but the only time i used it, i put only 1 layer or it around the centre, and it was obviously not enough as it came off my 3rd high speed pass.... The gorilla tape looks like my next option and using plenty of it!

bigsteel 06.21.2010 12:42 PM

If that doesn't work you could always put fishing lone around the outside.I've never tried it but the ones I've seen don't seem to stretch even less.--Josh

mckrill 06.21.2010 12:43 PM

The Tesa 4289 seem to be pretty strong as well:
http://www.tesatape.com/industry/pro...a(r)_4289.html

Don't know if I can get it locally though

Andrewg 06.22.2010 04:14 AM

The eagle tree loggers are pretty much the same price wherever you go

The micro logger is in my experience much easier to use. Its also cheaper to do most things with. The V3 150amps will read to 190 amps - the stand 100 amp loger reads to 120 amps - after that tere is no more data as the sensors saturate

The 150 runs much cooler, however where the wires solder to the boards is the fragile spot. It can get hot enough to melt, so check heat before sending it off for an indefnite run.

BTW have you tried the glass fibre reinforced tapes? Also 3M make some excellent polyester tapes backed with acrylic adhesive. Pricey but very tough.

Jahay 06.22.2010 05:13 AM

I can not wait to see the water cooling installed!!! Should look crazy!!!

Recently i have been having problems bending dog bones (not from the torque) but from doing cartwheels and the A arms would bend (as they should) but my drive shafts would take the force. So im wondering how you find the FLM Kit? and is it the extended kit which makes the truck wider? Are they strong? (i probably wouldnt ever jump my truck if i had alloy a arms but they would be good for driving around and maybe very small jumps...)

mckrill 06.22.2010 10:20 AM

I really have not had the time to do some challenging stunts yet, so I do not know if the FLM's will hold up or not. The drive shaft seem to be very strong though..

I contacted EagleTree and got the suggestion to get any of the Loggers with HV option and 300 amp option => 350 bucks more.. Not an obvious investment (yet)..

As for tape - I started searching the 3M homepage but had some problems navigating in it. These tapes are very expensive, but so is a number of blown out Tires, especially if it results in a crash. I'll guess I have to consider this some more time as well.

At the moment I an just awaiting the new wheels and the parts for the water-cooler, perhaps I should put on a pair of old 1/8 buggy wheels just to wear the out while waiting..

lutach 06.22.2010 11:04 AM

There's also a company in Germany that makes high AMP dataloggers, but I can't remember their name right now. I'll look for the website I saved and post it here when I find it. If someone knows it, please post it.

I thought the new Schulze controllers came with data logging capability.

Edit: Found it, it's http://www.sm-modellbau.de/shop/inde...1468f4423f03f6

mckrill 06.22.2010 02:30 PM

Thanks a lot - I will look into it.

The Schulze logging is not available on the wk-models, if I understood it correct. The EagleTree would be very nice though..

mckrill 06.22.2010 02:35 PM

Whaow!! Looks extremely convenient!

http://www.sm-modellbau.de/shop/prod...1468f4423f03f6

"have to buy - have to buy - have to buy"..

Much cheaper as well - Thanks again!

mckrill 06.22.2010 02:43 PM

Just bought a set... Lets see how fast the Germans are - I'm curious on this stuff

snellemin 06.22.2010 03:35 PM

That looks good man. Give us an update how it works when you do get it.

mckrill 06.28.2010 04:34 AM

Tired of waiting I ordered some 23mm Hex and Truggy wheels from the local supplier. I belted and glued the tires quickly so I could do a new test run. The tires wont hold up to a full throttle straight run, but for sure it is fun anyway..

http://rsb.se/gallery/files/1/5/3/nya_hjul.jpg

mckrill 06.28.2010 04:38 AM

As I was alone when driving, the vid. is quite bad - it is alway difficult to drive the cars with one hand only and then shoot the video with the other - hope you can enjoy it anyway...

Temperature is OK on all parts, but on grass the ESC will over-heat for sure.

[YOUTUBE]RZWM9tHLQ6E[/YOUTUBE]

Jahay 06.28.2010 04:53 AM

Looks like those tyres are holding up ok... i dont buy those tyres any more because i find they are bald after 3 runs or so on dirt.

I know waht you mean about gras, but because i run primarily on grass and dirt on occasion, i have geared it to stay cool on grass and therefore its extremely cool on dirt and on tarmac.

Did you record your temps?

mckrill 06.28.2010 05:09 AM

The motor was 50C (by sensor), but the ESC was hot "by hand". Lipos was warm in the range of 35C "by hand". I have a larger spur gear to put on as well, but as for pinions the 12t I'm using is minimum due to the 8mm bore.

The tires was cheap even if they don't last, hopefully they last until I get the new ones from US.

Jahay 06.28.2010 05:20 AM

what spur are you using? and what are you geared too? i was going to use a 12t pinion and a 46t spur. That shouldnt cause you any probs on you massive motor and esc??? i think you would be fine.

mckrill 06.28.2010 05:30 AM

I also bought a new 400w charger from Hobby king for 79usd.. When charging my 6s G3's on 5c it just took 13 minutes, perfectly balanced. Great value!

http://rsb.se/gallery/files/1/5/3/ny_laddare.jpg

mckrill 06.28.2010 05:34 AM

I think it is 46t spur at the moment. (The truggy spur is 52t)
The diameter of the wheels have a huge impact as well, so I will have to wait and see when I get the new wheels.

I would like to be able to use full throttle more often as the ESc and Motor will run cooler - but at the moment the tires is the weak link.

I did some racing on asphalt as well, the truck behaves really nice now. More videos will come.

ANGRY-ALIEN 06.28.2010 10:04 AM

That thing is just ballistic man:yes:... how was the 'handling' with those tyres in comparison to the previous ones?

nitrostarter 06.28.2010 10:19 AM

How do you like that charger? I have a brand new one, but every time I try charging something, it says "Connection Break." Any clue?

mckrill 06.28.2010 10:20 AM

Handling is surprisingly good, I think there are three reasons compared to last test-run:
1. Sway bar => general turning & stability
2. Belting of tires => better control at high speed
3. ESC - the schulze has a very direct and precise throttle response compared to the Jeti => overall control

I just got the message that the Germans sent the data-logging stuff - I hope to have it here next week..

mckrill 06.28.2010 10:23 AM

The charger has worked really, really good. (I have just tried on the Hyperion G3's, but they are surprisingly difficult for my e-Station to balance)

Nitrostarter: Check all connections including the balancing cable - otherwise I have no clue

ANGRY-ALIEN 06.28.2010 10:55 AM

Quote:

Originally Posted by mckrill (Post 371550)
Handling is surprisingly good, I think there are three reasons compared to last test-run:
1. Sway bar => general turning & stability
2. Belting of tires => better control at high speed
3. ESC - the schulze has a very direct and precise throttle response compared to the Jeti => overall control

I just got the message that the Germans sent the data-logging stuff - I hope to have it here next week..

Sounds good... the truck looks a little smoother on acceleration... nice work man.

mckrill 06.30.2010 02:55 PM

Way lot smoother, made a small test run the other day (ended up crashing..). Anyway - here is the video from the short run, starting on packed mud, then asphalt and and in the end loose shingles.

[YOUTUBE]q9N5vsJZudM[/YOUTUBE]



Unfortunately aren't the tires up for any full throttle drives. Got to get that new tape for belting my new tires..

ANGRY-ALIEN 06.30.2010 03:06 PM

Damn that's fast... I'm loving the sound that motor makes too.

mckrill 06.30.2010 03:11 PM

Tnx, I hope to be able and shoot some nice videos with full speed stunts...
Angry: Btw - love your build...

ANGRY-ALIEN 06.30.2010 03:46 PM

Thanks mckrill... it's the never ending saga:lol:... there is always that one thing that's not been done to it yet...

Jahay 07.01.2010 06:02 AM

its looking real good! But i think we are yet to see a full blown full throttle pass!!!
I think you are going to need to get some road tyres and do the fishing line method as well as strap them.

alport 07.01.2010 06:18 AM

Can anyone please provide the links for the last two videos? I can't see them.

mckrill 07.01.2010 07:14 AM

This one I filmed myself while driving with my left hand - sorry for the lacking car-control
http://www.youtube.com/watch?v=RZWM9tHLQ6E

This is just a short vid. - the car crashed shortly after..
http://www.youtube.com/watch?v=q9N5vsJZudM

Jahay 07.01.2010 07:19 AM

When you say crashed... was it serious? I notcied there were a lot of poles where you were driving (not a good idea)... Any pics of the carnage?

alport 07.01.2010 07:23 AM

Quote:

Originally Posted by mckrill (Post 371878)
This one I filmed myself while driving with my left hand - sorry for the lacking car-control
http://www.youtube.com/watch?v=RZWM9tHLQ6E

This is just a short vid. - the car crashed shortly after..
http://www.youtube.com/watch?v=q9N5vsJZudM

Thanks a lot. It will be awesome when you put the link for further videos too.

mckrill 07.01.2010 07:31 AM

Well, I didn't consider the crash to have a public value. It was not very harsh, but the tie-rod wasn't geared to handle 6kgs rolling around. It will be permanently fixed during this week..

It was actually a attempt to slowly pull up to full throttle, but then reality came by for a visit :whistle:

Here's the vid. Just uploaded it, so quality will improve over time.

[YOUTUBE]IDZFEw1oAbg[/YOUTUBE]

Jahay 07.01.2010 07:37 AM

you need to get the rear integy tie rod deletes. Do you knw of them? i would get a link but very short of time.

mckrill 07.02.2010 11:59 AM

Yes - just got the stuff from the Germans!! (But still awaiting 3 other packages..)

http://rsb.se/gallery/files/1/5/3/img_0541.jpg

The Amp-plug and the logger weights 28gms (~ 1oz?)

snellemin 07.02.2010 12:07 PM

How many amps can that logger handle again?

mckrill 07.02.2010 12:16 PM

:diablo:400

mckrill 07.02.2010 01:24 PM

Did a small test-run in my garden. The "garden" is 5 by 5 meters of grass, with the water sprinkler in the center. A few burn-outs around the sprinkler resulted in even less grass, and a graph to post here:lol:

http://rsb.se/gallery/files/1/5/3/in_the_garden.jpg

Hope to do a better test-run by tomorrow.

suicideneil 07.03.2010 04:36 AM

5600 watts spike... **faints**

That setup has a bit of power behind it, I'll say that much :yes:

mckrill 07.03.2010 04:57 AM

Yesterday I did some grass driving. On 2:30 minutes apx 30Wh was spent => I should be able to drive at least 10 minutes. Peaks of 130Amp, temperature rising quite linear during those minutes, but I still have no cooling in place.

However did the test result in a a few stripped gears. Clearly from the landings.. I think it was the ordinary hardened gears, and not the bullet proof ones, but I'll see later today.

http://rsb.se/gallery/files/1/5/3/img_0544.jpg

http://rsb.se/gallery/files/1/5/3/grass_hill.jpg

I'd have to say that the voltage is keeping up very well on this 14s1p3300mAh Hyperion packs..


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