20LikesOfficial Tekin RX8 GEN2 ESC Thread
05-26-2018, 12:20 PM
#3812
To be honest, most of us don't run a fan on E buggy unless ambient temps are high, say 90+. Even then it's conditional. I would ask why that fan mounted in that manner vs the stock fan?
06-01-2018, 05:39 PM
#3814
Tech Addict
iTrader: (1)
I just had 2 rotors grenade on me, and I'm trying to figure out why.
I'm running a 4038 1350kv on 6S on a MBX7TR. On the first (original) rotor, the fiberglass wrapped around the magnets broke straight across, like it was cut along the edge of one of the magnets. The magnets came out completely intact, not broken. All 4 magnets separated from the rotor core, which came out by itself, leaving the magnets stuck to the inside of the can.
I wanted to keep running my truggy, so I pulled the rotor out of my 4038 2000kv motor in and put it in the 1350kv.
Now it's the next weekend, and half way through the third pack since the rotor swap, that rotor grenaded. This second rotor had a different failure. One of the magnets cracked toward the back of the motor. It looks like there was some rubbing, but I don't know if that caused the failure, or if it happened because of the failure. It looked fine when I installed it.
I don't see anything obviously wrong with the second rotor when I installed it. And the bearings look fine.
I'm running an RX8 ESC, with torque set to 1. I was using a 15T pinion at the time, but had run a 16T on the previous run. Motor temps ended at 180F, so I went back down 1 tooth. I ran the 15T last year.
So yeah, what's the most likely issue? Is something wrong with my motor, or is it somehow set-up related? Should I be geared higher, despite the motor temps?
I ordered 2 new rotors last week, thinking I'd have a spare (out of stock...
), but at this point I'm hesitant to install a new rotor in the motor. I don't want to ruin another rotor if this is going to happen again.
I'm running a 4038 1350kv on 6S on a MBX7TR. On the first (original) rotor, the fiberglass wrapped around the magnets broke straight across, like it was cut along the edge of one of the magnets. The magnets came out completely intact, not broken. All 4 magnets separated from the rotor core, which came out by itself, leaving the magnets stuck to the inside of the can.
I wanted to keep running my truggy, so I pulled the rotor out of my 4038 2000kv motor in and put it in the 1350kv.
Now it's the next weekend, and half way through the third pack since the rotor swap, that rotor grenaded. This second rotor had a different failure. One of the magnets cracked toward the back of the motor. It looks like there was some rubbing, but I don't know if that caused the failure, or if it happened because of the failure. It looked fine when I installed it.
I don't see anything obviously wrong with the second rotor when I installed it. And the bearings look fine.
I'm running an RX8 ESC, with torque set to 1. I was using a 15T pinion at the time, but had run a 16T on the previous run. Motor temps ended at 180F, so I went back down 1 tooth. I ran the 15T last year.
So yeah, what's the most likely issue? Is something wrong with my motor, or is it somehow set-up related? Should I be geared higher, despite the motor temps?
I ordered 2 new rotors last week, thinking I'd have a spare (out of stock...
), but at this point I'm hesitant to install a new rotor in the motor. I don't want to ruin another rotor if this is going to happen again.New rotors I ordered have a stainless steel band around the back of the rotor, so looks like this type of failure has been addressed.
11-22-2018, 10:02 PM
#3815
Randy, I am waterproofing rx8g2, what is a little pad iinside on the procesor? Kind of heatsink?
11-25-2018, 09:30 PM
#3816
03-05-2019, 12:19 AM
#3819
Tech Rookie
Hello
trying to find 3D printer STL model for Tekin ESC
i need normal size for fan and ability to waterproofing with compound
Did anybody see such things ???
trying to find 3D printer STL model for Tekin ESC
i need normal size for fan and ability to waterproofing with compound
Did anybody see such things ???
03-05-2019, 03:59 PM
#3820
You should .look at the Rx4 unit which is very similar in capabilities and is already waterproof.
03-05-2019, 11:35 PM
#3821
Tech Rookie
Ok Thanks
I will check out this item
And one more question about T8
I have a problem with reverse
Sometimes motor does not start spin reverse without some help... or you need to turn motor shaft a bit and then press revers again and everything works fine
Is it able to fix with timing or any others settings?
small video with issue youtu.be/wohuKefFevc
I will check out this item
And one more question about T8
I have a problem with reverse
Sometimes motor does not start spin reverse without some help... or you need to turn motor shaft a bit and then press revers again and everything works fine
Is it able to fix with timing or any others settings?
small video with issue youtu.be/wohuKefFevc
03-07-2019, 02:15 PM
#3822
Ok Thanks
I will check out this item
And one more question about T8
I have a problem with reverse
Sometimes motor does not start spin reverse without some help... or you need to turn motor shaft a bit and then press revers again and everything works fine
Is it able to fix with timing or any others settings?
small video with issue youtu.be/wohuKefFevc
I will check out this item
And one more question about T8
I have a problem with reverse
Sometimes motor does not start spin reverse without some help... or you need to turn motor shaft a bit and then press revers again and everything works fine
Is it able to fix with timing or any others settings?
small video with issue youtu.be/wohuKefFevc
1. Your not getting a sensor signal back to the ESC from the motor.
2. Your reverse power is set too low, much too low.
What software version are you running? What radio are you using?
03-10-2019, 08:47 PM
#3823
Hey!
Thought I’d post this here and maybe get some help...
[Copy and pasted from my thread]
Tekin RX8 Stuck in pit mode?
First run out ran it around for a little while, temp were fine. Took a hit to front left a arm (NOWHERE NEAR the esc) and the whole system shut off. Had that happen before with other escs, so I just let it rest. (Which has always worked with other companies esc) Plugged my batt back in, turned it on and it was suddenly in pit mode. Messed with settings, on and off, and nothing. So went to factory reset. AFTER COMPLETE RESET it’s still in pit mode. All my other settings were reset, but can’t get out of pit mode. It wasn’t even a hard it, there’s a chip off the a-arm and that’s it. Probably goin mid 20s. This was my first Tekin esc and I’ve gotta say not impressed so far. $350 setup lasts one run before giving me crap. I’ve used pretty much every other brand out there and only a cheap chinese esc ever did this to me, but it lasted a whole 2 runs! Any Tekin reps here? Gotta say, not a fan so far. Thought I’d give you guys a shot since so many people like you guys, but it’s biting me in the butt leaving Castle.
PLEASE HELP!
Thought I’d post this here and maybe get some help...
[Copy and pasted from my thread]
Tekin RX8 Stuck in pit mode?
First run out ran it around for a little while, temp were fine. Took a hit to front left a arm (NOWHERE NEAR the esc) and the whole system shut off. Had that happen before with other escs, so I just let it rest. (Which has always worked with other companies esc) Plugged my batt back in, turned it on and it was suddenly in pit mode. Messed with settings, on and off, and nothing. So went to factory reset. AFTER COMPLETE RESET it’s still in pit mode. All my other settings were reset, but can’t get out of pit mode. It wasn’t even a hard it, there’s a chip off the a-arm and that’s it. Probably goin mid 20s. This was my first Tekin esc and I’ve gotta say not impressed so far. $350 setup lasts one run before giving me crap. I’ve used pretty much every other brand out there and only a cheap chinese esc ever did this to me, but it lasted a whole 2 runs! Any Tekin reps here? Gotta say, not a fan so far. Thought I’d give you guys a shot since so many people like you guys, but it’s biting me in the butt leaving Castle.
PLEASE HELP!
03-11-2019, 10:58 AM
#3824
Sounds like you're not getting a signal from receiver. Check connections and if possible, even try a different receiver. Does the steering work .