PDA

View Full Version : How to - 12s T-Rex 600 Setup On A Budget.


Pages : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 [53] 54 55 56 57 58 59 60

snjbird
11-02-2010, 04:55 PM
You should also have a look on the "Motor start power" setting. I had to decrease it significantly when I converted to 12S.

The initial spool-up rate determines the overall acceleration from zero-ish to full speed, while the motor start power determines the acceleration on the first few revolutions. You can have a low spool-up rate and still kill the gears with the default motor start power setting.


Yes I didn't think of that, but it makes sense! Head speed change rate could effect that too? yes? If yours was too high, it could cause gear damage as you flipped between FMs?

Just because the gears are stripping inflight, does not mean the damage isn't happening on spool up, you could be damaging the teeth there, and then finishing them off during your hard collective changes, or the piro stops.

I only say this because many of us are flying the setup without issue, so there has to be a reason yours is acting up?

HELIJEDI
11-07-2010, 08:09 PM
Wow 180 plus flights, sounds amazing, can't wait to get there someday:shock:

bobsp1
11-08-2010, 04:58 AM
G'day all, I am in the final stages of my 12S build, 4025-630 Scorpion, 12T pinion, 164T KDE main gear, Turnigy 3000mah 35-40C batts.
I would like to get an idea as to what you guys are using for throttle curves and pitch curves. I will be using the fixed endpoints.
I guess a typical 0 25 50 75 100 pitch curve with around 10 - 11 degrees collective to get me started, but as I am not familiar with the power of these ships, I am not sure what throttle curve to use.
Any help will be gratefully received.

povern
11-08-2010, 06:20 AM
G'day all, I am in the final stages of my 12S build, 4025-630 Scorpion, 12T pinion, 164T KDE main gear, Turnigy 3000mah 35-40C batts.
I would like to get an idea as to what you guys are using for throttle curves and pitch curves. I will be using the fixed endpoints.
I guess a typical 0 25 50 75 100 pitch curve with around 10 - 11 degrees collective to get me started, but as I am not familiar with the power of these ships, I am not sure what throttle curve to use.
Any help will be gratefully received.

Pitch Curve is 0-50-100 with +/- 13, Cyclic is +/- 12

Head Speed is a personal preference thing, I had (<-Note Had) st2 at 2250 and st1 at 1900. at 2250 performance is unbeleiveable, and battery life sucks. I moved it down to 2100.

I also use the CC governor (set head speed mode) but am thinking of going off this and going straight to 100%, then I can run a smaller pinion and maybe get a little less slow down in pitch pumps.

meatbob
11-08-2010, 11:05 AM
When I got my setup flying, I started with fixed endpoints on 12T. I quickly got bored with 12T, went to 13T, and really enjoyed it. Now, I'm flying 14T with the Set RPM gov mode on my CC 110HV ESC, and I could not be happier. My Set RPM head speed is 2060, which is attainable with the logic in the governor.

I still run +/- 12 on collective over a linear range 0-25-50-75-100.

rceccleston
11-11-2010, 10:10 AM
Just seen the 'Turnigy 3000mAh 6S 40C (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10300&aff=97114)' packs have been reduced to $45:57 :YeaBaby:

http://www.hobbyking.com/hobbyking/store/catalog/T3000-6-40.jpg (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10300&aff=97114)

dfrazier
11-11-2010, 02:45 PM
Just seen the 'Turnigy 3000mAh 6S 40C (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10300&aff=97114)' packs have been reduced to $45:57 :YeaBaby:

http://www.hobbyking.com/hobbyking/store/catalog/T3000-6-40.jpg (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10300&aff=97114)

I saw that the other day. Great price. This is the same packs I have been running on my 12s 600 since last December. I now have 227 flights on them and they are still going strong. I charge them at 15 amps every charge and store them at 3.85V per cell and my total pack IR is still only 11 and 12mOhms. Still better than new.

Rogman88
11-15-2010, 10:20 AM
went to 13T, and really enjoyed it. Now, I'm flying 14T with the Set RPM gov mode

Same here. I was even thinking about 15T as well.

meatbob
11-15-2010, 10:49 AM
Since I went FBL with the Align 3G, I've found that on 14T, Set RPM mode, I can run about 5:30 on my packs and still put back in only 3750 mAh for the pair IF I don't slam the heli around. I was practicing backwards flight and circuits on Saturday, using 620mm SAB Red Devils, with no major collective motions.

rceccleston
11-15-2010, 04:36 PM
Since I went FBL with the Align 3G, I've found that on 14T, Set RPM mode, I can run about 5:30 on my packs and still put back in only 3750 mAh for the pair IF I don't slam the heli around. I was practicing backwards flight and circuits on Saturday, using 620mm SAB Red Devils, with no major collective motions.
I gather your not running 3000Mah packs.

What size packs are you running??

meatbob
11-16-2010, 09:03 PM
No, I am running 3000 mAh packs. These packs have around 140 flights on them. For this particular flight I did not hammer the collective. As soon as I get wild on collective, the recharge goes back up to around 4000-4200. Rarely above 4300.

I confess that the 3750 was an outlier - under most normal flights it's around 4000.

rceccleston
11-17-2010, 03:03 AM
No, I am running 3000 mAh packs. These packs have around 140 flights on them. For this particular flight I did not hammer the collective. As soon as I get wild on collective, the recharge goes back up to around 4000-4200. Rarely above 4300.

I confess that the 3750 was an outlier - under most normal flights it's around 4000.
While your running 12s 3000Mah packs, your coming across a little confusing, as your stating you consumed an average of 12s 4000Mah.

I believe you really mean an average of 12s 2000Mah per flight out of 12s 2400Mah at 80%.

meatbob
11-17-2010, 06:19 AM
Sorry about that - yes - when I say I push back in 4000 mAh, I charge in parallel, so it ends up being approx 2000 mAh per pack.

GB ian
11-17-2010, 11:41 AM
I have been running flybarless 12T on the stock gear with the 4025-630 with 100% flat line and no govenor

After 5:30 mins I am putting back 2400 into each pack using 2 x 3000 mah Zippy Lightmax 40C packs.

Starting rpm was 2060, ending was 1960.

I just moved to 13T and govenor high with low gain. At 67% flat I am getting 2030 rpm.

Set up per Finless videos.

I have not run a full flight yet with these settings.

My assumption is that I will probably get less flight time.

I hope that this set up will even out the performance in high pitch manoevers towards the end of the pack. With the fixed endpoint set up on 12T it was getting boggable in the last minute, not badly so, but noticable.

If it doesn't rain this weekedn I have high hopes for 13T governed.

ady
11-18-2010, 12:52 PM
good evening , got a bargin 600esp for my LHS , good the full super combo minus the motor and controller for a very good price as no one wants them around here , yep you quessed it , she`ll be 12s , this will be my first 12s esp as my other 12s was a NSP converted , outta interest , she weighs 300 grams more than my 550 , with the same kit on board , i`ve borrowed the motor n cont from the 550 , so i can hoover her at the weekend :thumbup: just awaiting my 80HV cont and she`ll be up and away

GB ian
11-19-2010, 07:34 PM
13T governed worked well, but stripped the gear at the point where the molding mark is. I think I had the mesh a bit too loose.

Bad Daddy
11-26-2010, 07:11 AM
I should not have looked in this thread , I look at the pictures , then my heli . The ideas are flying . Looks like it's time to fire up the lathe . Now if I can remember where I put the aluminium hexbar stock ....

Steve

lovespicyfood
11-27-2010, 01:44 AM
Just an FYI, Castle Creations issued a service advisory on the HV80 esc and BEC Pro (units not labelled Version 2) back in August. I just found this out and checked my units. I'm sending both in to Castle for repair tomorrow. I haven't had any issues, but I haven't been flying this heli hardly at all and no sense in risking it... The heat sink on my esc was definitely de-bonded which can be an issue per their advisory bulletin. :mad:

rceccleston
11-28-2010, 03:25 PM
Just seen the 'Turnigy 3000mAh 6S 35/45C Lipo (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10101&aff=97114)' packs have been reduced to $43:68 in the Black Friday weekend sale http://helifreak.com/images/smilies/nodding%20grin.gif

http://www.hobbyking.com/hobbyking/store/catalog/T3000-6-35.jpg (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=10101&aff=97114)

papabas
12-06-2010, 11:06 AM
Hello everyone.
I wonder, is it possible to use the Trex 700's main gear (115T) with the kdedirect adaptor and CC Ice HV 80 - Scorpion 4025-630 in a Trex 600 ?

snjbird
12-06-2010, 01:32 PM
Why not, I would think you would just need to get the appropriate pinion and you would be good to go?

wangotaco
12-10-2010, 08:38 PM
I have been running flybarless 12T on the stock gear with the 4025-630 with 100% flat line and no govenor

After 5:30 mins I am putting back 2400 into each pack using 2 x 3000 mah Zippy Lightmax 40C packs.

Starting rpm was 2060, ending was 1960.

I just moved to 13T and govenor high with low gain. At 67% flat I am getting 2030 rpm.

Set up per Finless videos.

I have not run a full flight yet with these settings.

My assumption is that I will probably get less flight time.

I hope that this set up will even out the performance in high pitch manoevers towards the end of the pack. With the fixed endpoint set up on 12T it was getting boggable in the last minute, not badly so, but noticable.

If it doesn't rain this weekedn I have high hopes for 13T governed.

I just built my 12s trex 600. I read this thread many times while I built the bird. I just flew it for the first time today, fantastic! This post caught my eye. I have the same motor with a 14 tooth pinion. When I set it up with the 120hv ice I could get about 2100 rpm at 95%. you got a 13 tooth at 67%? Maybe I have a different large gear?

Gotta go -Greg

Jotto
12-11-2010, 09:02 AM
I stripped the main gear in a backwards loops, and down she went :(

I was unable to maneuver it back to a safe auto area, and it hit a tree.

I heard a strange sound half a minute before it happened, but I figured it was normal. Bad mistake!

Oh well, time to order some parts then. Perhaps I should consider some sort of main gear upgrade. I have a 6 mm motor shaft and 550 KV motor -- any recommendations?

mcaccamise
12-12-2010, 09:38 AM
Fellas i have a 600E and a 6mm shaft where can i find the 12t and 13t pinion for this 700e motor. Ican find a 14t pinion and up but not a 12or13 in 6mm.
Thanks Mike

meatbob
12-12-2010, 11:42 AM
RevCo pinions from ReadyHeli are the ones to use - they have 6mm 10-21T pinions. I assume you are using a straight cut main gear.