View Full Version : Motor/ESC recommendation for 3S and 4S
xircom
08-22-2006, 06:51 AM
Hi, I have existing VE, and plenty of 3S batteries to be re-used with LEX, but same time will want to use 4S as well. ESC shall have Auto Lipo function, and motor shall be 10 or 12 turn (example Hyperion 3025), any recommendations ?
ESC -> I have seen CC80 can handle auto lipo (newest version or SW upgrade).
Motor -> 10 or 12 ? XL ?
Thanks a lot
Finless
08-22-2006, 10:46 PM
I tell ya... the Align 75 amp ESC is a GREAT buy! I am using it with no issues.
If you go 4S I think 2 choices. I am running the 3025 10T and Mudbogger was running the 3025 12T. Unless mudbogger dissagrees, the 12T might be better than the 10T as I had to reduce my Tcurves quite a bit to keep the HS in check.
Bob
marcelino
08-23-2006, 02:50 AM
If you like to use governor mode, buy a Jazz ESC. Has Auto Lipo too, and a very soft low voltage cut off. This save`s your heli if you ever don`t hear the timer beep you down.
I am flying Actro CL 5. Works very well, but i think there are some more Motors that will work as well.
Marcel
xircom
08-25-2006, 06:47 AM
Thanks both, I heard good things about Jazz - I will check the Align too. Jazz seems to be quite expensive, especially because electrical noise supression (something 10 times less than average), and also automatic adjustment to Motor, but still I am wondering if that two features make the price worth ... in addition the biggest Jazz I can buy here, is the 55, is that enough for the LEX ?
marcelino
08-26-2006, 11:31 AM
I am using the 55-6-18. ESC part works absolutely perfect.
Only one thing to it`s built-in BEC: Don`t use it if you have 3 digital servos and a 9254/9256 or similar on the tail.
Had a "piroing inverted auto" after an issue with the tail. Was doing some clock-tic tocs in a row and from one to the other second it went into permanent piro while turning the tail 90° for the next "toc".
That was looking like somthing broken on the tail, i managed it to get into a flat inverted, high position, switched motor off and would try to flip it over after tail becomes stable. But... it did not stop and i had to set it down inverted while doing piros.
Only little damage: Flybar bent, one clip, 3 servogears.
And now it comes: tail is working perfect, belt is fine, tailgripbearings are fine, blades are fine.
We think the Gyro (Gy611) had initialized after a short Voltage shutdown from overloading the BEC. This new on-Air initializing was exactly while i moved the tail 90 degrees. So it was set to piro as it`s zero position.
I cut the red wire going to RX and go with a separate BEC now.
again: ESC is perfect, BEC is not strong enough.
Marcel
Fredrik aka. mrNoodles
08-26-2006, 05:36 PM
Or go with the Jazz80-6-18?
4A BEC compared to 2A in the Jazz55.
xircom
08-27-2006, 03:14 AM
Hmmm, yes I will use digital - everywhere. So either Jazz 80 or Jazz 55 and UBEC. Still have a UBEC, so probably 55 will be fine. Unfortunately have not seen anyone selling Jazz 80 here in Japan :( marcelino, where did u buy in CH ? Will be there in two weeks :mrgreen:
marcelino
08-27-2006, 11:26 AM
Hey xircom, visiting switzerland? cool! :D where in switzerland would you stay?
I`ll write you a pm and list some dealers with their shops in the area you will stay. (including the one with the best price)
I agree, the BEC from the 80-6-18 is known as very strong. I think this would work.
I did not want to change ESC, so i`ll give the "BEC" from Rex 600 a chance and go on with the 55.
Marcel
xircom
08-28-2006, 02:11 AM
Hi, will stay in my hometown (near Zurich, like you - actually I am Swiss :wink: ) Yes, please post some name of shops :D great ! Lepton/TX, RX, Gov I have, but looking for best battery, ESC and Motor. Ville Dank.
marcelino
08-28-2006, 05:20 PM
nüt z`danke :D
pm sent...
Marcel
TMoore
08-28-2006, 05:35 PM
I'm using a CC80 with the Medusa 6 volt 3.5 amp BEC and the Hyperion 3025-10 motor and it is working quite well. Now that I have the glitching issues under control I'm impressed with the temps and the performance.
TM
xircom
08-29-2006, 08:24 AM
Thanks for reply, yeah at this moment I think about
1) Jazz 55
2) Jeti Spin 55 or 66
3) CC80
Of course the most important is the proper gov function and the automatic efficiency control of the Jazz vs. linear BEC and logging function of the Jeti. As I probably will use external logger and anyway have already a UBEC, probably 1) is the choice. CC80 is nice as well, espcially it's cheaper, and I don't have to worry about Amps ... but I don't know if CC has anything much better than Jazz or Jeti in comparison. Actually all of those are really good. :hug:
poerqwa
09-03-2006, 05:41 AM
I'm flying the lepton with a Jazz 55-6-18 on 4S with a Hacker 10XL.
JR368 on the swash and the 401/9650 combo on the tail.
Must say that with my flying style (yes i feel a bit impressed by all you kicking ass on this bird) I'll probably never run into the Esc problems mentioned :oops:.
I would love to get my hands on different pinions though as with the 24 tooths I get an easy 2500 rpm's with 50% on the esc. Not a real problem as the Jazz copes nicely but still.
This engine/esc combo really purrs
Greetz,
Marc
Smartarse88
09-13-2006, 05:54 AM
Thanks for reply, yeah at this moment I think about
1) Jazz 55
2) Jeti Spin 55 or 66
3) CC80
Of course the most important is the proper gov function and the automatic efficiency control of the Jazz vs. linear BEC and logging function of the Jeti. As I probably will use external logger and anyway have already a UBEC, probably 1) is the choice. CC80 is nice as well, espcially it's cheaper, and I don't have to worry about Amps ... but I don't know if CC has anything much better than Jazz or Jeti in comparison. Actually all of those are really good. :hug:
The Spins have a switched mode BEC, not a linear regulator. I am using a 33 in a Funjet, it seems very good but no idea what its governor mode would be like. They are very easy to setup with the very useful Jeti box. They BEC is at 5.5v and also has a large current limit 4-5amps!!! It would be nice to get a report on its governor ability from somewhere!!!
xircom
09-13-2006, 04:59 PM
That is right, both Spin and Jazz have linear BEC, CC80 has not. And yes, only the Jeti BEC is big enough to survive without extra BEC, for both (in case of digi servos) Jazz 55 and CC80 ext BEC is recommended, when using Jazz 80 (which I have), you don't need, because it has twice the BEC Amps of the Jazz 55, i.e. same as Spin.
Nick J
09-13-2006, 09:57 PM
will a Hacjer A30 8XL run 3s and 4s, on a 24t pinion, also how do you set the gov on the esc, do you just make a flat throttle curve, and if thats so then can i make idle up 1 for 3s and idle up 2 for 4s?
xircom
09-14-2006, 04:45 AM
In any case having a gov, then the throttle curve is a flat one - not sure when using 3S and 4S batteries, normally you have to change the pinion gear as well. The above described way sounds feasible, but as Idle 1 and 2 are usually used to handle different acrobatics (e.g. loops for idle 1, rolls idle 2) because of different desired behaviour (e.g. dual rates, ATV), maybe a different model memory for 3S and 4S also can be desired, then you can have two completely different bunch of settings.