Just a video showing a couple servos side by side hooked up to the same receiver/battery for a no load comparison.
The blue one is a Savox 0231MG waterproof. The red/black one is a no name brand I purchased off ebay to give a try. Was only $14 shipped, so figured it was worth a shot. It was listed as "K3 Waterproof High Torque Metal Gear RC Servo" with the following specs:
- Model: k2-3620
- Metal Casing. Protect the servo motor from overheating
- Torque(4.8V): 16.5 kg-cm (229.1 oz/in)
- Torque(6.6V): 20.0 kg-cm (277.7 oz/in)
- Speed: 0.18 sec (4.8V) ¦ 0.16 sec (6.6V)
- Operating Voltage:4.8 ~ 6.6 DC Volts
- Weight: 60 g (2.12 oz)/Servo Motor
- Bearing Type:Ball Bearing x 2
- Motor Type
C Motor
The receiver pack is an old tired traxxas 1200mah flat pack. It just came off a 1A charge. I keep it in a drawer for testing stuff only. The receiver is a knock off spektrum DSM2 replacement that I started using last year in all my rigs due to increased range.
I have the radio set at 100% epa for t/b and steering. Suppose I should have maxed them out to get full lock. Still, you get a general idea as to how the servos compare for speed. I had the savox in the steering port and the 3620 in the t/b port.
Without the glitch buster, the 3629 caused the receiver to brown out when I would go from full throttle to full brake repeatedly. The savox didn't do this, but we all know that savox servos are power hungry, so that should tell you something about the 3620. The savox seems a bit faster than the 3620. It's more noticeable when going full lock to lock. The savox is also a lot noisier.
Off camera, I held the horn/servo in my hand so it wouldn't move and used the throttle to see/feel how strong it was. It caused the receiver to brown out even with the cap. I did the same with the Savox, which caused the receiver light to flicker, but not brown out. By feel, the 3620 has quite a bit more torque than the 0231. I know, very scientific. I have a feeling the brown outs were partially due to the tired receiver pack, but I don't have a spare good one laying around. Even still, it was clearly more power hungry than the savox.
Without load, the 3629 seems to be fairly accurate and doesn't wander when you go partial movement or full movement. It also finds home accurately. I know back in the day I had bought one of those cheap 996 servos off ebay, strong, but they were awful at finding the position. They would overshoot the EPA considerably and wander on both sides of home position. This one seems pretty accurate.
I'll probably give this one a try for steering in my ERBE, when I get it. I'll definitely use the cap with it and the savox though if I end up using the savox instead.
The blue one is a Savox 0231MG waterproof. The red/black one is a no name brand I purchased off ebay to give a try. Was only $14 shipped, so figured it was worth a shot. It was listed as "K3 Waterproof High Torque Metal Gear RC Servo" with the following specs:
- Model: k2-3620
- Metal Casing. Protect the servo motor from overheating
- Torque(4.8V): 16.5 kg-cm (229.1 oz/in)
- Torque(6.6V): 20.0 kg-cm (277.7 oz/in)
- Speed: 0.18 sec (4.8V) ¦ 0.16 sec (6.6V)
- Operating Voltage:4.8 ~ 6.6 DC Volts
- Weight: 60 g (2.12 oz)/Servo Motor
- Bearing Type:Ball Bearing x 2
- Motor Type
C MotorThe receiver pack is an old tired traxxas 1200mah flat pack. It just came off a 1A charge. I keep it in a drawer for testing stuff only. The receiver is a knock off spektrum DSM2 replacement that I started using last year in all my rigs due to increased range.
I have the radio set at 100% epa for t/b and steering. Suppose I should have maxed them out to get full lock. Still, you get a general idea as to how the servos compare for speed. I had the savox in the steering port and the 3620 in the t/b port.
Without the glitch buster, the 3629 caused the receiver to brown out when I would go from full throttle to full brake repeatedly. The savox didn't do this, but we all know that savox servos are power hungry, so that should tell you something about the 3620. The savox seems a bit faster than the 3620. It's more noticeable when going full lock to lock. The savox is also a lot noisier.
Off camera, I held the horn/servo in my hand so it wouldn't move and used the throttle to see/feel how strong it was. It caused the receiver to brown out even with the cap. I did the same with the Savox, which caused the receiver light to flicker, but not brown out. By feel, the 3620 has quite a bit more torque than the 0231. I know, very scientific.
I have a feeling the brown outs were partially due to the tired receiver pack, but I don't have a spare good one laying around. Even still, it was clearly more power hungry than the savox.Without load, the 3629 seems to be fairly accurate and doesn't wander when you go partial movement or full movement. It also finds home accurately. I know back in the day I had bought one of those cheap 996 servos off ebay, strong, but they were awful at finding the position. They would overshoot the EPA considerably and wander on both sides of home position. This one seems pretty accurate.
I'll probably give this one a try for steering in my ERBE, when I get it. I'll definitely use the cap with it and the savox though if I end up using the savox instead.
