How to - 12s T-Rex 600 Setup On A Budget.

[nightflyr]

Done it, running the spider gear setup. Although the crash bar is an interesting idea, hmmmm... :thinking
That's the reason I made the suggestion..I've twisted spider landing gear up like a pretzel, reason i made my own.

nightflyr

[nightflyr]

Oh..forgot to mention..I have my ET mounted underneath also...right behind the ESC tucked up inside the KDE

nightflyr

[ontheway]

Do you think metal head is a necessity for 12S applications? My old 600E's head and tail is plastic (along with fiberglass 600s). Also wondering what type/brand of rubber dumper you use..

Another issue is motor mount. Mine is plastic. Is this the correct replacement?

http://www.helidirect.com/align-motor-mount-h60033-p-1556.hdx

Thinking on replacing bottom plate too, but KDE's is a bit on expensive side..Any other alternatives?

[nightflyr]

My choice is all metal..but then again my birds weren't built on a budget...

I'm quite sure the budget build works fine.


nightflyr

[rceccleston]

Do you think metal head is a necessity for 12S applications?My old 600E's head and tail is plastic (along with fiberglass 600s).

All depends upon your headspeed and how hard your going to push it.

Also wondering what type/brand of rubber dumper you use..

Stock grey dampers.

Another issue is motor mount. Mine is plastic. Is this the correct replacement?
http://www.helidirect.com/align-motor-mount-h60033-p-1556.hdx

Yes, looks right.

Thinking on replacing bottom plate too, but KDE's is a bit on expensive side..Any other alternatives?

Using the stock bottom plate, don't see any advantages of replacing it.

[ollie2893]

Thinking on replacing bottom plate too, but KDE's is a bit on expensive side..Any other alternatives?Using the stock bottom plate, don't see any advantages of replacing it.Depends on how often you intend to crash. Given that 1/3rd of the total AUW sits in the nose, the bird has a certain propensity to hit the ground LiPo first. The stock bracket simply crumbles, leaving your expensive packs to dissipate most of the impact energy. Worse, the frame construction is a sandwich and has little torsional rigidity. Once the bottom bracket goes, your chances are excellent of cracking the entire frame. That's not just damned expensive, it also a right nuisance as you end up stripping practically the entire bird down to replace it. Ask me how I know all this :oops: I have finally coughed up for the KDE bracket, and I have also attached the u/c with nylon screws. If you can assure that the u/c flies off on impact, you've gone a long way to alleviating the torsional forces.

Also, make sure that the canopy posts crack before the frame does! Another excellent place for nylon bolts... If your base is an ESP, you will also want to insert the extra frame support there, as indicated in rceccleston's pictures.

I fly my ESC where nightflyr indicated. Best spot, really, to minimize any fire damage. If you simply suspended your ESC by the wires - which I have done with mine - then on impact, the thing should really just retreat upwards thru the cut-out in the bracket. And in the event of a fire, well, best-case scenario is that the wires melt off and the thing will simply drop to earth...

I have not crashed my latest setup yet but it won't be too long, I'm sure. I average around 80 flights between setbacks, so Feb at the very latest, I reckon ;)

[adroc3905]

Wondering if I can run the newer Align 600D CF main blades or should I go with the older 600D/3K blades that come in the ESP kits? Is there really a difference?
This wll be on a 12s setup.

BTW anyone got some 600mm blades for sale????

[rceccleston]

Depends on how often you intend to crash. Given that 1/3rd of the total AUW sits in the nose, the bird has a certain propensity to hit the ground LiPo first. The stock bracket simply crumbles, leaving your expensive packs to dissipate most of the impact energy. Worse, the frame construction is a sandwich and has little torsional rigidity. Once the bottom bracket goes, your chances are excellent of cracking the entire frame. That's not just damned expensive, it also a right nuisance as you end up stripping practically the entire bird down to replace it. Ask me how I know all this :oops: I have finally coughed up for the KDE bracket, and I have also attached the u/c with nylon screws. If you can assure that the u/c flies off on impact, you've gone a long way to alleviating the torsional forces.

While the KDE bottom bracket may absorb some of the impact but many have also bent it too, which is a lot more expensive than the stock to replace.

The nylon bolts on the under carriage are highly recommended too.

http://www.helifreak.com/picture.php?albumid=2567&pictureid=27716

Also, make sure that the canopy posts crack before the frame does! Another excellent place for nylon bolts... If your base is an ESP, you will also want to insert the extra frame support there, as indicated in rceccleston's pictures.

You could use the nylon threaded bar, from the nylon bolts, to screw the canopy posts into an extra frame support.

I fly my ESC where nightflyr indicated. Best spot, really, to minimize any fire damage. If you simply suspended your ESC by the wires - which I have done with mine - then on impact, the thing should really just retreat upwards thru the cut-out in the bracket. And in the event of a fire, well, best-case scenario is that the wires melt off and the thing will simply drop to earth...

I have not crashed my latest setup yet but it won't be too long, I'm sure. I average around 80 flights between setbacks, so Feb at the very latest, I reckon ;)

Wish you many more good flights..

[rceccleston]

Wondering if I can run the newer Align 600D CF main blades or should I go with the older 600D/3K blades that come in the ESP kits? Is there really a difference?
This wll be on a 12s setup.

BTW anyone got some 600mm blades for sale????
The 3K's will most likely be phased out by the pro's in the future but the the stock blades perform well.

[ollie2893]

While the KDE bottom bracket may absorb some of the impact but many have also bent it too, which is a lot more expensive than the stock to replace.It is very expensive, granted. Mind, you could probably bend it back in most instances. I fly over lettuce fields where the soil is mostly moist. I would be astonished if that ground could make the KDE bracket buckle. Undoubtedly, it won't be too long before I know first hand :roll:

[ontheway]

Depends on how often you intend to crash. Given that 1/3rd of the total AUW sits in the nose, the bird has a certain propensity to hit the ground LiPo first. The stock bracket simply crumbles, leaving your expensive packs to dissipate most of the impact energy.

May be we need something like this (http://www.ijerseys.net/store/popup_image.php?pID=103055&image=0&osCsid=1b4f78bcfa2463bd1910efd70f5efca0). :) (at least, the sticker is not so inappropriate ;) )

Wondering why no one tried to place a cage-like structure running at inside walls of canopy. A little more protection, since in current case, its fully exposed as mentioned above.

[ollie2893]

Wondering why no one tried to place a cage-like structure running at inside walls of canopy.I think that the T-Rex was designed for true pros who NEVER crash. I do miss the (super ugly) canopy from my Raptor. It's made from this milk-bottle stuff and is totally indestructible. (Believe me, I tried!) On my Raptor, I actually screw on the canopy real hard because it has proven totally fantastic at dissipating head-on impact forces. On the T-Rex, the darned FG just breaks into pieces. And it's (the bottom plate, immediately followed by) your LiPo, that takes all the brunt. Very bad news...

[jones007]

Hi rceccleston, I recently decided to go with a 600ESP over a nitro for several reasons that I won't get into right now. What I was curious about though is your build. The new ESP kits come with an Align 100A ESC (as I thought the older ones had a 75A) and unfortunately I cannot find an ESP kit w/o electronics such as the motor, esc and bec. I plan on using the same electronics as your build but do you think the 100A ESC is sufficient to power a 12s setup with that scorp motor? The cost is not an issue, its more or less having ESP electronics that are useless to me since I would be purchasing a new CCBEC, CCESC and scorp motor.

BTW nice clean looking bird. What charger are you using to charge the 6s packs?

Probably too late to help you guys, but GrandRC lets you spec your own electronics in Trex kits.

http://www.grandrc.com/inc/sdetail/51019

Can save you a bundle on junk you don't want.

--Kevin

[popadel]

nice thread. i use the 4035 630 but with a 15 tooth and the 700 MG converted for 600

[BPINE]

I am interested in building a 12s 600 but have 6 Turnigy 3000 20c's for my 500 I would like to use in a 12s 600. I am so happy with these batteries on my 500 I can fly 8 minutes and they come down barely warm with 30+ % left. I am just a beginer and can only do flips and rolls but fly pretty agressive with hopes to learn more.

I know the #'s don't add up to great performance but has anyone done this and if so what do you think?

Which motor and ESC would be best for this combo?

Blair

[rceccleston]

I am interested in building a 12s 600 but have 6 Turnigy 3000 20c's for my 500 I would like to use in a 12s 600. I am so happy with these batteries on my 500 I can fly 8 minutes and they come down barely warm with 30+ % left. I am just a beginer and can only do flips and rolls but fly pretty agressive with hopes to learn more.

I know the #'s don't add up to great performance but has anyone done this and if so what do you think?

Which motor and ESC would be best for this combo?

Blair
While I wouldn't normally recommend 20c packs, they will allow you to make the change, with 30 (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9489&aff=97114)or 40c packs in mind for the future.

Scorpion 4025-630kv, Castle Creations 85HV with 12T pinion will work well.

[OverTemp]

I am interested in building a 12s 600 but have 6 Turnigy 3000 20c's for my 500 I would like to use in a 12s 600. I am so happy with these batteries on my 500 I can fly 8 minutes and they come down barely warm with 30+ % left. I am just a beginer and can only do flips and rolls but fly pretty agressive with hopes to learn more.

I know the #'s don't add up to great performance but has anyone done this and if so what do you think?

Which motor and ESC would be best for this combo?

Blair

I'm using Flightmax 20C 3000s. I like them better than the 30C 2650s I have, despite the math. Use 'em.

[rceccleston]

Under load in fixed end points, there'll be a greater drop in voltage resulting in a loss/bogging in head speed with 20c packs compared to 30c or 40c packs.

While a governor could be used to mask this, the packs will have a significant lower life cycle than 30c (http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9489&aff=97114) or 40c packs.

[OverTemp]

True, maybe. HK packs can sometimes be a little random in their C ratings... not sre they are correct. Like I said, I get better performance out of my 20C 3000s than my 30C 2650s (60A vs 80A).

Plus, at $39 for a pack that flies fantastic and balances the heli perfectly (30-40C packs are heavier), if I buy again I'm getting the 20Cs. If it was 6S-8S it would be a different story, but on 12S there's no need... they stay cool as cucumbers... no heat problems like I had on 8S.

Most important, the dude already has the packs... fly 'em 'till they be dead!

[LUV4RCHeli]

Hello everone, I'm new to this forum and have a quick question about the posted recommendation for a budgeted 12S setup.I just ordered everything per the recommendatin of this thread for a 12S setup for my Trex 600ESP. However, the only difference is that my place of purchase, GrandRC didn't have any CC 85HV's in stock but instead gave me the CC 110HV instead for free. Everything else is exactly the same including the Scorpion Motor 4025-630, Mikado 12T pinion gear, CC BEC Pro, and running (2) 3000 6S Turnigy lipo batteries. Since I'm fairly new to helis, will the110HV be just as good as the 85HV? Will I still be OK running a 12S setup?

[nightflyr]

Hello everone, I'm new to this forum and have a quick question about the posted recommendation for a budgeted 12S setup.I just ordered everything per the recommendatin of this thread for a 12S setup for my Trex 600ESP. However, the only difference is that my place of purchase, GrandRC didn't have any CC 85HV's in stock but instead gave me the CC 110HV instead for free. Everything else is exactly the same including the Scorpion Motor 4025-630, Mikado 12T pinion gear, CC BEC Pro, and running (2) 3000 6S Turnigy lipo batteries. Since I'm fairly new to helis, will the110HV be just as good as the 85HV? Will I still be OK running a 12S setup?
You got a SCORE there 110 will do just fine:thumbup:

nightflyr

[rceccleston]

Hello everone, I'm new to this forum and have a quick question about the posted recommendation for a budgeted 12S setup.I just ordered everything per the recommendatin of this thread for a 12S setup for my Trex 600ESP. However, the only difference is that my place of purchase, GrandRC didn't have any CC 85HV's in stock but instead gave me the CC 110HV instead for free. Everything else is exactly the same including the Scorpion Motor 4025-630, Mikado 12T pinion gear, CC BEC Pro, and running (2) 3000 6S Turnigy lipo batteries. Since I'm fairly new to helis, will the110HV be just as good as the 85HV? Will I still be OK running a 12S setup?
It'll work just as well with plenty of overhead.

Recommend 5.5mm bullets (http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=9763&aff=97114) all round.

You could still upload my config for a head start.

[rcflyer2006]

Hi All,

I am slowly getting all of the components for my 12s heli. Got the CC 85 HV last week. What firmware is producing satisfactory results with the Scorpion 4025-630 motor? I have read that some firmware releases are better than others for the Scorpion motors. I would like your experience to help with the initial setup.

Thanks

[nightflyr]

Hi All,

I am slowly getting all of the components for my 12s heli. Got the CC 85 HV last week. What firmware is producing satisfactory results with the Scorpion 4025-630 motor? I have read that some firmware releases are better than others for the Scorpion motors. I would like your experience to help with the initial setup.

Thanks
2.16 seems to be what works well for Scorpion.

V2.16, Timing = 3, PWM = 12 Khz
Outside Temp = 49F
Average Temp = 129
Max Temp = 141
Average power = 308 watts
Average headspeed = 2139

V2.16, Timing = 3, PWM = 8 Khz
Outside Temp = 40F
Average Temp = 115
Max Temp = 121
Average power = 311 watts
Average headspeed = 2139

V2.16, Timing = 3, PWM = outrunner
Outside Temp = 44F
Average Temp = 107
Max Temp = 113
Average power = 293 watts
Average headspeed = 2137

V3.00, Timing = 3, PWM = 12 Khz
Outside Temp = 46F
Average Temp = 190
Max Temp = 221
Average power = 3054 watts
Average headspeed = 2138

V3.00, Timing = 3, PWM = 8 Khz
Outside Temp = 40F
Average Temp = 162
Max Temp = 182
Average power = 343 watts
Average headspeed = 2137

V3.00, Timing = 3, PWM = outrunner
Outside Temp = 40F
Average Temp = 128
Max Temp = 137
Average power = 309 watts
Average headspeed = 2139
nightflyr

[BPINE]

Hello everone, I'm new to this forum and have a quick question about the posted recommendation for a budgeted 12S setup.I just ordered everything per the recommendatin of this thread for a 12S setup for my Trex 600ESP. However, the only difference is that my place of purchase, GrandRC didn't have any CC 85HV's in stock but instead gave me the CC 110HV instead for free. Everything else is exactly the same including the Scorpion Motor 4025-630, Mikado 12T pinion gear, CC BEC Pro, and running (2) 3000 6S Turnigy lipo batteries. Since I'm fairly new to helis, will the110HV be just as good as the 85HV? Will I still be OK running a 12S setup?

Thanks a lot LUV4RCHeli I went to Grand RC on the way home to pick up an ESC for my 12s and they were all out !!!!! Just kidding I can wait. He did try to talk me out of the 4025-630 said I need a 740 instead now I am really confused but I guess I will stand to learn more about this while I try to figure this out. Is anyone running the 740? He also didn't like flybarless heli's either and told me I wight want to wait untill the new skookum or ? can't remember something G.

My plan was to us a Mini V Bar hmmm now I have more to think about.