Castle 5th scale

[DrKnow65]

Well, I'll be staring into the shiny glow of those LED's in a few short hours as my replacement XL has arrived WOOOOHOOOO!!!

Originally Posted by DrKnow65

Well, I'll be staring into the shiny glow of those LED's in a few short hours as my replacement XL has arrived WOOOOHOOOO!!!

Great to hear that your back in action bro!!!!!

[Kcaz25]

I wish there was a like button. I would press it.

[DrKnow65]

For my next magic trick I'll be stuffing a Mamba XL into a Losi 8 buggy
With a Castle Creations conversion kit no less

Heres a screen shot of one of my logs. Can some one else post something similar? Preferably someone who is using some "nice" batteries. I want to compare the voltage dropoff (if any) of these turnigy (supposedly 40c sustained 50c burst) lipos against a higher quality lipos.




Link to full size screenshot

[Knez]

Thomas, no problem at all!

P.s: I forgot to tell/ask this CC staff yesterday...on ur site i think u got a word writen wrong... It says "Are u looking for something specfic?" Should it be "specific"? Just ignore if i am wrong... as English is not my language =)
http://www.castlecreations.com/index.html
Blue colored letters.

[Thomas Porfert]

Originally Posted by blackz97

Heres a screen shot of one of my logs. Can some one else post something similar? Preferably someone who is using some "nice" batteries. I want to compare the voltage dropoff (if any) of these turnigy (supposedly 40c sustained 50c burst) lipos against a higher quality lipos.

I would recommend also comparing the voltage ripple values. It will give you a better idea of how much you're "stressing" the controller and batteries due to the batteries amperage output capabilities.

Here's a link to a post by Patrick on ripple voltage: http://www.rc-monster.com/forum/show...2&postcount=11

It explains what it is and acceptable ranges. Being that you're around 32 volts, anything below 2.2V is good, 2.3 - 3.2V is okay, 3.2-3.8V is marginal and somewhat risky, and anything above 3.8V could potentially damage the batteries and/or the ESC.

Originally Posted by Knez

Thomas, no problem at all!

P.s: I forgot to tell/ask this CC staff yesterday...on ur site i think u got a word writen wrong... It says "Are u looking for something specfic?" Should it be "specific"? Just ignore if i am wrong... as English is not my language =)
http://www.castlecreations.com/index.html
Blue colored letters.

haha yea, that should be specific, I'll let the webmaster know on Monday so he can get that fixed.

Thomas Porfert
Tech Support
Castle Creations

Originally Posted by Thomas Porfert

I would recommend also comparing the voltage ripple values. It will give you a better idea of how much you're "stressing" the controller and batteries due to the batteries amperage output capabilities.

Here's a link to a post by Patrick on ripple voltage: http://www.rc-monster.com/forum/show...2&postcount=11

It explains what it is and acceptable ranges. Being that you're around 32 volts, anything below 2.2V is good, 2.3 - 3.2V is okay, 3.2-3.8V is marginal and somewhat risky, and anything above 3.8V could potentially damage the batteries and/or the ESC.

Thomas Porfert
Tech Support
Castle Creations

I checked the ripple on the log and the Max during that session was 2.26. I just noticed though that with all the data parameters being logged the XL only logs 8 minutes of data (must be a memory capacity thing). I would like to try and capture the entire run so i can see how the pack behaves at closer to LVC (25.6V). Thomas, would you say that the "Ripple" is the most important data to monitor regarding a batteries ability to supply the required current?

Steve

[DrKnow65]

It was said that the ripple won't change much over time, so I'm not sure once the setup is "set up" that you need to check it regularly.

You can change the frequency/resolution of the data log in the parametrs to capture more minutes of your run.

I would say IMHO that battery voltage drop at the highest current rating is the single most important factor in showing battery quality.
I.e. If you floor it with good traction does the minimum voltage stay a few tenths above the LVC?

[lincpimp]

Yeah, find your highest amp load and see what the voltage is doing. If you are above 3.5v per cell your batteries are doing well.

With these large scale heavy conversions I can imagine looking at the lowest voltage during the run will be the determining factor. Will weed out the "boys" from the "men" lipo-wise.

Heres more video. Sorry for the crap camera angles.

http://www.youtube.com/watch?v=ETy8lPMTGEo

[_paralyzed_]

Originally Posted by blackz97

Heres more video. Sorry for the crap camera angles.

http://www.youtube.com/watch?v=ETy8lPMTGEo

Hey. What's with the crap camera angles?

Originally Posted by _paralyzed_

Hey. What's with the crap camera angles?

ROFL

I lol'd

[DrKnow65]

Found a new home for my XL.
A little modding/relocating of the CC conversion mount, and a few new holes in the chassis.
A pair of left over links to stiffen the chasis, and all I need is for my 2650mah 40/50C 4S lipo's to show up...



Sooo much cleaner than the Hyper 7 conversion, and everything is right down on the chassis. Weight balance should turn out spot on, and I can shift the batts for rine tuning.

[josh9mille]

Not to sound like an ass or anything, but what is the point in putting that ESC in a 8th scale buggy? Is 6s not enough for you?