s maxx build

[traxxasrevony]

well the old 2.5 bit the dust so i decided to start up a little project,
a brushless smaxx. with direct drive.

i was going to use a feagio 12xl but it would be to long and not low enough kv.

im going to run it on 12 nimh on a mm and im thinking a 1000 kv outrunner.

heres some pics of the start.

the threads on the input shaft will be cut off



this is my connector for motor to tranny dual set screws will hold it on to the flat spots on the imput shaft and two flat spots on the motor for set screws.



heres the bare frame



and heres the 2 speed that im going to lock inplace with jb weld.



thats were im at now. might get some more stuff done tomarrow.

[suicideneil]

Should be an interesting project, good luck dude.

[BL_RV0]

Cool project! Why didn't you tap the connector so that you'd have some more stability instead of cutting the tranny?

[traxxasrevony]

i could have but i think that would be weaker than the hex with set screws holding it inplace.

[BL_RV0]

Why not tap and set screw?

[lincpimp]

Here is slikeston34m's outrunner emaxx tranny setup. He replaced the outrunner shaft with a longer 5mm shaft, and placed the input gears on it.

[traxxasrevony]

hmmm interesting.

im going to get the jb weld tomarrow to lock the tranny i thought i had some but aperently not.

[traxxasrevony]

what would you all recommend for a outrunner i was thinking a axi 2820/10 its a little shorter than the 2826 and about the same kv.

[traxxasrevony]

also i dont have the right size bit to bore out the hole so i couldnt tap and set screw it fits perfect over the hex on the input shaft but is kinda sloppy on the threads nor do i have the correct tap to tap the connector. ill look in to that tho i got plenty of alum stock so i can try a few setups. my buddys got a lathe and hes got more taps and drill sizes than he knows what to do with. i just havent talked to him in about 2 years.

still lookin for options on a motor.

[lincpimp]

The 28 series axi motors will be too small. Go with the 4120 or 4130 motors. Century 650plus motors are good too. Sikeston34m would be the best bet for motor advise. Send him a PM about this thread.

[traxxasrevony]

i saw a thread somewheres where a guy used a 2826 on 4s i think and it was fine in a maxx im pretty sure.
i think it was on traxxas.

[lincpimp]

Originally Posted by traxxasrevony

i saw a thread somewheres where a guy used a 2826 on 4s i think and it was fine in a maxx im pretty sure.
i think it was on traxxas.

Sike used a 2826, but he retained the spur and pinion for addl reduction to make up for the losss of torque. He is the guy to talk to as he has done alot of testing with the tranny setup in the above photo. I use a 2826 in a direct to diff setup in a 10th scale 4wd, and that is about the limit for that size motor before it gets too hot. It may weight 3-4lbs. Your maxx will be twice that or more depending on battery choice.

[traxxasrevony]

that was it. ill look into the bigger motor like you sugjested but i need somthing with around 1000 kv. i might just have to turn to a inrunner because im kinda limited on esc

[lincpimp]

Here ya go, 1100kv: http://www.centuryheli.com/products/...5&prtnm=CNE274

[traxxasrevony]

my internet wouldnt load the century page for some reason when i was looking earlier but now it loads fine.

think that century you linked would work ok with the mm on 12 nimh or 4s lipo