215LikesDigital Servos from China
01-05-2021 | 08:24 PM
#183
01-06-2021 | 11:36 AM
#184
Tech Regular
Joined: Feb 2019
Posts: 267
From: Barcelona
01-16-2021 | 07:52 AM
#189
Joined: Mar 2011
Posts: 6,410
From: Austin,TX
Funny you mention the lack of stops... so I just "cooked" my A80 yesterday, at first I thought I may have stripped the gears, but the problem persisted after swapping out the gears with a fresh set. I then carefully inspected the original gears to confirm that nothing was stripped and there was problem somewhere on the main board, though the motor was still spinning it just wouldn't initiate the signal to the gears without causing a brownout.
The amount of throw that this servo offers is FAR wider than any other servo I have used in the past and I was taking full advantage of this feature not realizing that even though the servo is whisper quiet, I was binding the servo at full lock and couldn't "hear" the bind. I have a new A80 on order and will be extra careful setting the EPA next time!
I don't plan on making a warranty claim, I'm chalking this up to user error for not properly setting the EPA
The amount of throw that this servo offers is FAR wider than any other servo I have used in the past and I was taking full advantage of this feature not realizing that even though the servo is whisper quiet, I was binding the servo at full lock and couldn't "hear" the bind. I have a new A80 on order and will be extra careful setting the EPA next time!
I don't plan on making a warranty claim, I'm chalking this up to user error for not properly setting the EPA
I know I had experienced a similar problem with this same gear style on my Radiopost servos in the past, though I did get close to 3 months of racing before I stripped a gear... I will continue to monitor this and hopefully this was just a one off.
01-17-2021 | 07:32 AM
#191
Joined: Mar 2011
Posts: 6,410
From: Austin,TX
So the problem turned out to be much worse, I don't believe any of the gears were damaged after all, and while I was able to get the servo to operate without any load when I posted my reply above, once I installed the servo back into my car and attempted to operate it under load, it seems that something is either wrong with the servo motor or the mechanism that transfers power from the servo motor to the first gear in the gear box.
The servo is not operable under load
This is the second A80 servo that I've had to replace due to "cooking" or damaging the main servo motor. While it's nice that the gears are not stripping, there is a bigger issue when the servo can't be repaired.
At this point I have lost confidence in AGF servos and don't plan to support the brand anymore. I will continue to run the AGF servos that I have, but when they eventually fail, I plan to switch back to SRT servos which are a little more expensive, but I've never had any problem with the SRT servo that I ran in my EB48.4 several years ago.
I plan to get the new ET48 2.0 when it's released next month and I will be going with this servo here for the truggy:
https://dialedhobbies.com/accessorie...s-servo-detail
I'd rather have peace of mind and willing to pay a little more for that assurance.
*** UPDATE
I've damaged $80 x 2 = $160 over 5 months of racing plus another $80 for the 3rd servo I am currently running which makes the total spent to $240 on servos so far
I ran the SRT servo for nearly 2 years before I sold my EB48.4 and never had a single issue with that $120 servo
In contrast, I do believe that the A80 servo is more acceptable for my 4WD SCT and the A65 has been doing extremely well in my 1/10 buggy and mini truggy.
Perhaps there is a more suitable servo for 1/8 cars, but the A80 is definitely not a servo that I would recommend for 1/8
The servo is not operable under load
This is the second A80 servo that I've had to replace due to "cooking" or damaging the main servo motor. While it's nice that the gears are not stripping, there is a bigger issue when the servo can't be repaired.
At this point I have lost confidence in AGF servos and don't plan to support the brand anymore. I will continue to run the AGF servos that I have, but when they eventually fail, I plan to switch back to SRT servos which are a little more expensive, but I've never had any problem with the SRT servo that I ran in my EB48.4 several years ago.
I plan to get the new ET48 2.0 when it's released next month and I will be going with this servo here for the truggy:
https://dialedhobbies.com/accessorie...s-servo-detail
I'd rather have peace of mind and willing to pay a little more for that assurance.
*** UPDATE
I've damaged $80 x 2 = $160 over 5 months of racing plus another $80 for the 3rd servo I am currently running which makes the total spent to $240 on servos so far
I ran the SRT servo for nearly 2 years before I sold my EB48.4 and never had a single issue with that $120 servo
In contrast, I do believe that the A80 servo is more acceptable for my 4WD SCT and the A65 has been doing extremely well in my 1/10 buggy and mini truggy.
Perhaps there is a more suitable servo for 1/8 cars, but the A80 is definitely not a servo that I would recommend for 1/8
Last edited by billdelong; 01-17-2021 at 05:00 PM.
01-17-2021 | 05:05 PM
#193
Joined: Mar 2011
Posts: 6,410
From: Austin,TX
I just went over my race log for my EB48 2.0 and I've got a grand total of 21 race days so far which is an average of 10 race days before each A80 servo failed (bad servo motor/board issue).
...what does AGF say to your issues ?? Did you contact them ??
01-18-2021 | 02:11 AM
#195
Tech Rookie
Joined: Oct 2020
Posts: 2
I had a similar experience to bill and had 2 bad ones in less time. Broken pins on the first one and dead one on the second. I got a replacement gear set sent for the first one but after the second one decided to go with a savox 2290 which has been proven in the eb48 2.0