Takedown's E-Warhead Build

[Takedown]

I thought I'd show you guys what Im up to- http://www.rcuniverse.com/forum/m_64...akedown/tm.htm

Everything past page 7 is what im currently planning to do. I hope you guys like it. I will update this as often as possible.

BTW: Im not completed with it yet. I have yet to get the MMM when it comes out.

[lincpimp]

Hey, Takedown, might I suggest that you cut the threaded portion off the prop adapter and use a longer revo drive shaft in its place. You have some tight driveshaft angles and you may have an issue with that causing your motor mount to flex.

[sikeston34m]

Hi Take down,

Nice!

Couple of questions for ya. What's the gear ratio of the diffs you're using? Tire Diameter?

What's the shaft diameter for that motor?

I might be able to give you a little advice if you like. LOL

[Takedown]

Lincpimp- Their is no binding. It runs very smooth.

Sikeston34m- Ya I plan to use CVD's and to drastically trim the shafts to the right length. This is just temperary. Im also going to have a guy I know lathe off all of the threads off the one shaft and cut it to about 15mm off the motor. As for gear ratio, 13t bevel and 47t diff ring gear. Im not 100% sure of the gear ratio but Im guessing its 3.61.

[Takedown]

Bump

Sikeston, I would like to be guided through this since Im pretty sure your the guy who made the direct drive e-revo. I based my whole project off that. My jaw dropped once I saw the finished thing!

[sikeston34m]

Originally Posted by Takedown

Bump

Sikeston, I would like to be guided through this since Im pretty sure your the guy who made the direct drive e-revo. I based my whole project off that. My jaw dropped once I saw the finished thing!

You mean THIS Direct Drive E Revo?

Yes it's mine.

[Takedown]

Yep thats the one. Got any tips on my build besides the ones mentioned?

[sikeston34m]

Originally Posted by Takedown

Lincpimp- Their is no binding. It runs very smooth.

Sikeston34m- Ya I plan to use CVD's and to drastically trim the shafts to the right length. This is just temperary. Im also going to have a guy I know lathe off all of the threads off the one shaft and cut it to about 15mm off the motor. As for gear ratio, 13t bevel and 47t diff ring gear. Im not 100% sure of the gear ratio but Im guessing its 3.61.

First of all, save your money on the Lathe work. There's a better way.

How long is your motor in mm? IF the motor shaft is 6mm, then you could use a Revo transmission output shaft. The tranny output shaft is 85mm long, If this works with your motor, then cvd's are a direct hookup!

If your motor shaft is 8mm in diameter, then replace it with a longer 8mm shaft, then look at what RC Monster has in their bag of goodies.

http://www.rc-monster.com/proddetail...coupler&cat=44

This is a 8mm drive shaft adapter that would allow you to hook driveshafts directly to the motor shaft. Check this out.

If you are going to be successful with this project, you MUST make the drivetrain VERY tough.

Let me know what you think.

If you'll give me a link to the motor, I can check out the specs and give you some more input.

Good Luck My Friend.

[Takedown]

My motor has an 8mm shaft on one side of the motor and a 10mm shaft on the threaded side. I want to shave down the 10mm shafts into a 8mm shaft to match. Heres my motor- http://www.hobbycity.com/hobbycity/s...idProduct=4907
My drivetrain is very tough. I havent heard of anyone ever having issues with with their warhead diffs/bevels. I should be fine. I am going to replace the cvd pins in the arm cvd's because their very worn and Im afraid they'll snap like a twig under the huge stress they're about to under go.

BTW: Ill look into that 8mm metal revo yoke. Kinda pricey for just one yoke but I guess it'll do.

[lincpimp]

The rcm drive yokes are well worth the cost. I have a pir on the hv tmaxx and they fit perfectly and are very strong.

Glad to hear that you are going to shortend the motor shaft. That long threaded portion would put quite a strain on the motor bearings and your motor mount may twist up or down.

[sikeston34m]

Originally Posted by Takedown

My motor has an 8mm shaft on one side of the motor and a 10mm shaft on the threaded side. I want to shave down the 10mm shafts into a 8mm shaft to match. Heres my motor- http://www.hobbycity.com/hobbycity/s...idProduct=4907
My drivetrain is very tough. I havent heard of anyone ever having issues with with their warhead diffs/bevels. I should be fine. I am going to replace the cvd pins in the arm cvd's because their very worn and Im afraid they'll snap like a twig under the huge stress they're about to under go.

BTW: Ill look into that 8mm metal revo yoke. Kinda pricey for just one yoke but I guess it'll do.

You might get by with using the prop adapter as long as you put it to work running the front wheels. If you point it toward the back to handle the majority of the load, it's not gonna live very long.

I know you are budget minded with this project, but take a look at your diff options. Run what ya got, and if they don't hold up, then upgrade to toughen them up.

I thought I had the diff area covered. My E Revo has almost $300 bucks worth of diff parts. The Best I could find. I've never heard of anyone having throuble like I have encountered, but at this point, My Revo will blow the rear diff pinion bearings in less than 2 packs on 6S. This is what I get for doing a custom motor wind. The custom motor makes alot more Torque than the factory winds. It's a 4 turn wind using 6 strands of 22Ga. wire with a Wye Termination. Big Power Bonus. I'll soon be doing a different diff setup. I have some ideas on how to fix it.

Because of the HUGE amount of torque that you're going to be making, you will encounter problems that your slower buddies don't run into.

Also, keep in mind that not just any ESC will run an Outrunner Motor in a MT Application. They have special needs. I use the Quark 125 amp ESC. I have also used the 80amp Quark with really good success.

[Takedown]

Ok Ill see if I can flip the motor. As for the ESC. Ive ran this motor with a MM and it ran fine so Im guessing that the MMM will do fine with it also. I sure hope that the diffs and joints hold out. Im not the kind of guy thats throttle heavy so... Im more of a speed demon. :) Im scared that this setup will make my warhead backflip from a standstill. If anything goes terribly wrong Ill look for the strongest upgrade no matter how much it'll cost me. I bought the revo shafts so that it would have less stress on the motor because they flex while the motor is spooling up. But Ya Im looking forward to sending out a draft of my idea for an custom aluminum motor mount. It stretches accross the chassis and it going to be as sturdy as possible because I know this motor puts out a to of torque. Im just worried if I get to much metal upgrades for the moving parts that their will not be any flex so the motor will be under a huge amount of stress.

BTW: Thank you Sike for guiding me threw this so far. I really do appreciate it!

[sikeston34m]

Originally Posted by Takedown

Ok Ill see if I can flip the motor. As for the ESC. Ive ran this motor with a MM and it ran fine so Im guessing that the MMM will do fine with it also. I sure hope that the diffs and joints hold out. Im not the kind of guy thats throttle heavy so... Im more of a speed demon. :) Im scared that this setup will make my warhead backflip from a standstill. If anything goes terribly wrong Ill look for the strongest upgrade no matter how much it'll cost me. I bought the revo shafts so that it would have less stress on the motor because they flex while the motor is spooling up. But Ya Im looking forward to sending out a draft of my idea for an custom aluminum motor mount. It stretches accross the chassis and it going to be as sturdy as possible because I know this motor puts out a to of torque. Im just worried if I get to much metal upgrades for the moving parts that their will not be any flex so the motor will be under a huge amount of stress.

BTW: Thank you Sike for guiding me threw this so far. I really do appreciate it!

You ran it with the MM after the update? or before?

I've been thinking about doing some more testing with the MM. Let me know.

Don't worry about back flipping. You're gonna have the power to do stuff like that. It's just a matter of controlling that itchy trigger finger. LOL

[Takedown]

No, I havent ran it with the 3.04 software yet. I ran it with the 3.01 software. Yeah the MM runs nicely, minimal cogging but gets a little to warm. Run a fan over it and it'll be fine. I am also ditching the revo shafts now because the motor is a perfect length to usethe stock dogbones. Pics will follow soon...

[Takedown]

Well guys it seems as if Im going to be selling my 50-55 600kv turnigy outrunner to my brother so that I can get an even bigger motor. Im looking into this- http://www.hobbycity.com/hobbycity/s...idProduct=4913

Im thinking that this will easily power my warhead but I need your opinion?