View Full Version : servo BMS-660MG
05.01.2006, 09:07 PM
Im considering purchasing the BMS-660MG servo with the heatsink but
i would like to know if and where I can get replacment parts gears\case for it.
i would also like to know which servo savers will work with it..
would this one work
05.01.2006, 09:13 PM
It is a good servo, i have this, if you ever need replacement parts i think you'd need to send it to wherever you bought it from so they can check it out.
05.01.2006, 10:57 PM
To be honest, the UE is the best. It will be much better and will actually make it worth getting the new servo. It will make your truck handle much better.
05.01.2006, 11:05 PM
Parts for the Blue Bird servos can be gotten here;
05.02.2006, 03:40 AM
I've always had great success with my couple of Blue Birds, stayed strong through tons of bashing too.
05.04.2006, 05:57 PM
I've heard many horror stories with blue bird servos, like them frying after 5mins lol and not lasting very long. Do you have to set the end points or something?
05.04.2006, 06:23 PM
Yea, if you dont then theres a very likely chance of them going POOF. I've fried 2. One when i plugged in the rec. pack. The motor got glowing red hot and the case had a little spot that melted and the other just stopped working...
05.04.2006, 06:37 PM
well i bought one yesterday so i guess that figures...
I cant set endpoints...
I always find thing out too late
05.04.2006, 07:11 PM
I have bought a few blue birds as well. I didn't have good luck with them. The best servo I have found is the hitec 5995tg. It is expensive but man what a servo.
05.04.2006, 11:22 PM
I've had 5-6 Blue Birds, and so far all have died except for the 2 I am using right now. I know that at least one of the failures was due to 16v going through it, and another one may have been damaged in the same way. My current two have lasted a pretty long time.
When one does die, I have figured that I can just buy the version of it with plastic gears, and then take the metal gears from the dead servo and replace the plastic gears with them! It saves at least $6 from the price of a new metal gear servo.
05.05.2006, 02:30 AM
Like somebody else pointed out, these servos need endpoints to be set, I think that's what makes so many of them burn out.
05.05.2006, 10:07 AM
what's their maximum angle?
05.05.2006, 12:56 PM
Well I set the ends points on mine every time. I still didn't have good luck with them. I won't buy one no more. They just don't agree with me. I would rather spend more money on another brand and have better luck.
05.06.2006, 12:01 AM
this is a great servo. I am very happy with its power.
05.18.2006, 09:54 PM
I use the 620mg in both my revo's and they run great
05.19.2006, 12:36 AM
Strange. I would not want to run one even if I got payed for it. You want to control a monstertruck with brushless with a cheap servo. Can't be any more wrong than this.
Read the storie's on ue forum. They hate these servo's. No customer service if you smoke one.
Be wise and spend the money for a better servo. It's not worth to smoke out a receiver or even a controller due to a cheap servo.
05.19.2006, 08:33 PM
How would one smoke a receiver or even a controller with one of these servos? I've smoked several of them myself, with absolutely no adverse effects on my other equipment.
05.19.2006, 08:46 PM
If there was a dead short from the factory, maybe the reciever, but i find the controler hard to believe as well
05.19.2006, 11:45 PM
I'm actually interested in checking one out as well - all my trucks run a 645MG at the moment and I haven't managed to strip one yet! Hitec has an A+ in my book!
05.19.2006, 11:49 PM
For me, the gears in the Blue Bird servos aren't the weak links, the electronics are. What I do now when I burn out the electronics in a Blue Bird is buy the regular plastic gear version and transfer the metal gears from the burned out servo into the new one. It saves about $5 per servo!
05.20.2006, 12:20 AM
I had one of those as a steering servo in my old Nitro Revo and it worked great... for about 20 minutes.
There was a thread over at the Traxxas forums, and after much talk, it seems that the electronics are very sensitive to overheating if trying to drive a hard load. Some people recommended setting the EPA so it won't "bottom out" at the ends of its throw. That seems to work...sometimes. Funny that other brand servos don't have this failing. They either are designed to handle the extra current at a stalled condition, or utilize some other type of electronic protection circuit.
As the old saying goes: You get what you pay for. Maybe it would work well if you used a really weak servo saver to keep it from stalling under heavy load; but then you'd be negating any benefit from a strong servo. Best to buy right once rather than to buy wrong twice.
05.20.2006, 03:51 AM
I'm not totally sure about smoking a controller, but read the thread I posted. Some guy smoked a 70$ receiver and didn't get it replaced by blue bird. So yea if you use the bec on the controller and the servo does go......
Just pointing out potential problem's. I don't trust them, and neither should anyone. You get what you pay for, junk in this case.
05.20.2006, 04:00 AM
I use the BMS 630MG in my 1/8 buggy. I set the end points correctly. The servo is working great!
05.20.2006, 08:26 AM
Well my opinion they are crap for monster truck. I think they can't handle the huge tires. I have heard people run the with smaller trucks no problems. Then again the load on the servo is greatly reduced.
05.23.2006, 02:17 PM
need not reply
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