Me and My Axi-Maxx Video's!
 

I'm still impatiently waiting on the 2 speed kit for my Axi-Maxx. In the meantime, we're having some fun stuck in 1st gear. :yes:

Did someone say this AXI 2826/10 looks a little small for the Maxx? :whistle:

These Vids were made running a 4S Lipo setup. 15C Firepower 4000mah packs. They give me about 25 minutes runtime. :yes:

As you can see, it's VERY torquey! :yes: There's still plenty of room for another gear!

Using Mod1 Gears, a 40 tooth Revo Spur and a RCM 22tooth Mod1 pinion, she gets around pretty good. The New E maxx is tough.

Here is what's under the hood! :yes:
http://i160.photobucket.com/albums/t...m/DSC06780.jpg

Now for the Action! :yes:
http://i160.photobucket.com/albums/t...th_Produce.jpg
http://i160.photobucket.com/albums/t..._Produce_0.jpg

Here's some more. I had to get some jumpin in! :yes:

http://i160.photobucket.com/albums/t..._Produce_1.jpg
http://i160.photobucket.com/albums/t..._Produce_2.jpg
http://i160.photobucket.com/albums/t..._Produce_3.jpg

i don't see anything wrong with that setup. looks plenty fun to me.

Looks nice! Any special magic needed to get the revo spur/slipper working on that?

Thanks Tashpop! :intello:

Nope, No special magic required. It's a direct hookup.

22t pinion with a 40 tooth spur is a close fit for motor/tranny clearance. You can go up to 25 tooth on the pinion but you can't go down in tooth count.

Ah very cool. Welp, if I start grenading spurs, I'll know what change to make!

It certainly performs well enough for a smaller motor, but thats the beauty of outrunners I guess. Squeals like a stuck pig when theres no load on the motor (jumping), completely different noise to what Im used to hearing...

nice job sike! i must say, i chuckled at 1:15 min. mark of 'axi-maxx 4' vid. it crashed off camera, and was followed by a 'oops'. :lol:

i suspect a lot of the extra noise is the new tranny, with all metal gears. at least, that's what sounds the most different from what i was used to in my maxx.

Looks good Sike! The quark does not seem to have any issues getting the axi turning!

I should have the aquacraft powered maxx finished in a day or so, my shocks just came in. Time for some fun with wiring!

man that thing looks pretty bad to me,how do you like your new emaxx versus old one?

Thats a very unique idea... Good Job!

Thanks Guys, I appreciate it. :yes:

When the two speed becomes available I will get the wide ratio set installed.

First gear will be even lower, so I'm sure I will step up to the 25 tooth motor pinion that I have.

2nd gear should be awesome. I'll get some more vids as soon as I get the 2 speed kit. :yipi:

I am still wondering about the gearing in the 2 speed.

it lists 18t input and 21t other gear
and 13t input and 26t other gear

The 18 and 13 go on the input shaft, obviously. What do the 21 and 26t gears do? Are they the output gears? The outputs are listed as a pair of 33t gears with a drive dog carrier and spacer.

I am wondering if the 21 and 26t gears are the idlers, and are different to maintain the correct spacing between the input and output gears? That does not make much sense either as the stock gearing is 18t and 33t. So the close ratio would be identical.

So I guess that they are geat sets, the idler must be positioned differntly to maintian mesh. It appears that the 20t idler is used for both.

That would make the close ratio 2:1 with the stock 1.83:1
While the wide ratio is 1.16:1 with the stock 1.83:1

This would mean that the stock ratio is the 2nd gear in the close ratio and the 1st gear in the wide ratio.

This is all kind of fishy to me. Does not really add up. I guess we will have to see when it comes out!

And I really need to start paying attention Here is the two speed explained!

Ok, looked at the pics and the 1.83 is going to be second gear. The 1st gear is a double reduction gear set, as opposed to the single reduction of the current gear setup in the tranny. So there are actually 4 gears, and 2 share the same axle, so the reduction is a bunch.

Plus it is not an auto shift, it requires a 3 channel radio to operate.

Looks like we will not have the killer 1.16 ratio for 2nd gear. Poo!

I guess that my ponderings were actually worth something.

Heres some pics

parts layout

cut away drawing

Notice the double gear on the rear gearset.

Both links point to the same thing linc

Well Poo! :no::cry:

I wasn't counting on a double reduction idler gear.

A 3 channel Radio isn't a problem. I use my rechargeable TQ3 for everything I run anyway.

I ordered the output gear package just so I could check them out and try to understand this setup, (before the description was posted).

There is going to be pro's and con's to this 2 speed kit.

Both output gears are the same tooth count, but look thinner and weaker than the single speed output gear. This also adds a drive dog, but it is somewhat smaller than the original tranny drive dog. The upside is, they do appear to be made from a better material, Delrin I believe.

This worries me. I had NO problem breaking the teeth that engage the output gears on the original drive dog. I have even stripped out the original drive dog hole that puts the spin on the output shaft.
http://i160.photobucket.com/albums/t...m/DSC06772.jpg
http://i160.photobucket.com/albums/t...m/DSC06777.jpg

Well Poo! It does look like I'm running in 2nd gear afterall. :no:

The Wide Ratio set will make 1st gear like running a Rock Crawler, which could be fun.

I will still get the kit and see if it's tough or not. Hmmmm............The possibilities.............

With all of this being said, This still doesn't explain the pegs on the single speed output gear OR the sensor window in the tranny casing. Any ideas?

Too Bad.
 

It is too bad that you cannot just drop one of the original EMaxx two speed (metal)trannys in there with metal gears installed??:lol:

How fast do you think it is with the single speed tranny?

Speed wise you will be limited by the largest pinion you can find and the smallest spur gear that will still allow decent gear mesh and some motor to tranny clearance. Looks like a 25/36 mod1 combo would be the minimum size. Which would give plenty of gear for almost all of the proposed setups.

Sike, what do you think the max rpm a 2826 axi can be spun up to? 15k - 20k rpm?

Fixed that, thanks for pointing that out Tim!

I am pretty sure their initial plan was to use an opti sensor on that two speed.

What temps Sike? (ambient/motor/controller?)

I have ran this setup on 6S. It runs really well on 6S too.

The motor being 920kv on 6S (22.2 volts), would top out at 20424 rpms. It makes a really high pitched whine at that speed, but it works very well. No problems.

I'm really thinking about buying the AXI 2826 8 turn. At 1130kv, it should pick up the top speed quite a bit. There is NO lack of torque. On 6S, this is going to spin up around 25,000rpms.

They seem to be VERY well balanced. I don't see a problem turning this kind of rpms. I'm going to let temps be my guide, and if I blow the windings out of one, I'll just rewind it anyway. LOL

An opti sensor huh? Could they be planning on releasing something else that takes advantage of this? If so, I wonder what it could be?

Ambient the day of the Vids was around 45 degrees.

The motor warms up to about 115. I can sense No heat at all coming from the ESC. The ESC is oversized, but very cool running.

I may swap out the Monster Pro 125 amp for a Brand New Quark 80amp that I have on hand. The 80amp is more than enough to handle this setup I believe.

The Lipo's might have been 85-90 degrees or so.

The setup isn't very stressed at this point.

The Motor fan is required however. Also, on the 10 turn, the stator poles are wound so full, I believe it is really limiting the amount of air flow the fan will pull.

There could be a difference in this area with the 8 turn motor.

Top Speed is lacking at around 30mph or so. I'm going to be making some changes to take care of that. :yes:

I had to start somewhere on the gearing. I figured this would be a good place to begin.

It's VERY torquey, and on a short track, would hang pretty tough.

Love it.
 

Looks like you've finally got a toy and not a project. I think I need to order a couple large piles of dirt like yours. My poor yard is barren.

Maybe they will come out with a different tranny design. Lets hope so!

Time for my thread on my new emaxx.

Well I finally got a chance to run my E maxx again. Got a few jumps in, ran around a little bit and the steering started acting erratic. It acted like the steering was binding. Sometimes it would turn and sometimes it wouldn't.

I disconnected the servo's and checked the steering linkage. Nothing is binding, it's turns VERY freely.

Looks like these "Water proof" servo's are NOT really all that tough. Anyone got any suggestions on some tough ones? I think both of these just stripped out. They don't have to be super strong, just tough, since there will be two of them serving the purpose.

I have a CC BEC set to 6.0 volts, but I didn't think that should hurt them like this.
http://i160.photobucket.com/albums/t...m/DSC06817.jpg

Wow!!!
 

This is a new EMAXX right? Does it not have two steering servos installed? So are both servos destroyed?

This is the new E maxx. It has two of them. and both sets of gears are stripped.

I thought the Servo Saver was supposed to prevent this from happening?

This has never happened to me before.

Info
 

To start I would send TRAXAS an email just like you did here and ask for their support in the matter. We both know that they want to maintain their reputation, and this is not a good thing to have happening with their newest EMAXX product. Maybe it is a deffective batch of servos, or they may need to change the servo specs to accomodate the application. Kind of like a recall. That looks like a definite material failure/defect to me. I guess we are still going to have to upgrade the steering servos to the hi torque type on our own to keep up with the vehicles pounding.:yes: Keep us informed of what they tell you Sikes. Thanks for the update.:intello:

Hey Sike, that sucks about the servos, do what jerry says and send them an email with the pics. They will most likely send you some replacements. Looking at my setup, I am not very happy with the 2 servo setup. Steering seems a tad unpredictable, so I may convert to a single high torque servo. I need to setup the suspension properly and lower the voltage back to 6v on the cc bec. I run a pair of futaba 3050 digital servos and they have tons of power and speed as the pair. No problem holding a line under full power, or turning the wheels at standstill.

I use the cheezemaster-deluxe MG995 servos. Haven't beat them up that much, but others report having good luck with them. Dang powerful (you'll only need one) and at <$20 you can afford to blow through a few.

Looks like you simple trashed the S out of it.. :)

The 995's are pretty tough servo's indeed!

I use 995's on my TXT-1 crawler with locked diffs and all...no problems controlling the 4WS either.

Got sort of an update here. LOL

I decided to order the AXI 2826/8 turn for this.

The wide ratio, and the close ratio gear sets are coming for this. Also got the shift fork and the output gears for the tranny.

I didn't order the mini shift servo since I already have a mini servo from a Revo.

It's funny. Tower doesn't offer the shift "kit" yet, but they have all the parts to put one together.

Oh yeah, on the stripped Servo gear issue.

Traxxas is sending me new gears and a new servo saver.

I'm pretty pleased with that. :yes:

I got impatient though and order a pair of the MG995 Metal Gear servos for it. I think they will hold up better to the abuse I plan on putting this through. LOL

Those servos seem to be a good deal. Wonder how well they work?

Well I don't know, but I've heard alot of good things about them.

They say they are high torque, high speed and I would only need one. I'm gonna install them both of course. LOL

Here's the "deal" I found. It's not bad at all IMO. USA seller too. :yes:

Getcha some! :lol:

http://cgi.ebay.com/2x-MG995-Metal-G...QQcmdZViewItem

Take a look Pimp and let me know what you think. I don't know how servos compare.

I've run them before and had a pretty bad experience. The ones I got got were also given the part number MG995 with similar specs, though mine were also toted as being digital coreless. Needless to say they werent digital or coreless, and I'd read on other forums people had measured the torque and it was nowhere near what was claimed.

That wouldn't really bother me because the torque was more than ample for my nitro evader steering, but the ones I got were increadibly glitchy and couldnt hold their position even at rest. Maybe I got a dodgy couple but it made me steer clear of them anyway...

All that said, I've read more good reports than bad, and I hope your experience is one of the good ones! For $25 though I guess there's not much harm in trying! :P

I can only imagine that at 7.2v (the max operating voltage according to the spec) they must produce some serious speed and power (and heat?).

I have run futaba 3050 servos at 6.5v and they do not even get hot, the performace is very good too.

I will have to try out a pair of these servos and see how they do. I need a few more steering servos for my buggy builds!