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n5296s
03-17-2010, 05:07 PM
Anyone come across servos from hobbypartz.com, e.g. this one:

http://www.hobbypartz.com/kahaoubrmo14.html

which looks like a drop in replacement for the Hitec 645MG for $4.90? On the face of it, it's a lot of servo for $4.90! There must be a catch...?

John

DresnerRobotics
03-17-2010, 05:17 PM
There must be a catch...?

There is no such thing as free lunch when it comes to servos.

sam
03-17-2010, 05:35 PM
You could buy one and do a few tests and see how it holds up. It is only 5$, so it's not to bad if you fry one.

Adam
03-17-2010, 06:01 PM
I personally would be more inclined to try the Turnigy servos. Turnigy at least has a reputation for producing high quality electronics. I have their UBEC-15A; it's a great product.

n5296s
03-17-2010, 06:14 PM
Turnigy at least has a reputation for producing high quality electronics
True, but if you plan to replace the servo electronics with Openservo (my general thinking at the moment) then all that matters is the quality of the mechanical components.

John

Adam
03-17-2010, 06:46 PM
If you want a smart servo, the AX-12+ is a much better option IMHO.

zoomkat
03-17-2010, 06:48 PM
I got several a while back to tinker with, but haven't done more than connect one up to see how it worked. It seems to be a little more noisey moving than a standard servo, but it may also have more gearing to get the extra torque.

darkback2
03-17-2010, 07:19 PM
I ordered a couple MG-995s on ebay, and they showed up with no labels and look remarkably like the servo you listed in this thread. The only difference is that about half of the orders were dead on arrival, and a number of the other ones would sometimes work, and mostly not. The gears seam to get stuck or something.

I've actually gotten to the point where $5 to test the servos isn't worth it.

Good luck though.

DB

rslegge
03-22-2010, 08:55 PM
I just received 8 HobbyPartz servos ($4.90, SG-5010) today (1 week shipping USPS) and they all work perfectly, are very strong, but not silent. They came with a bunch of horns, mounting eyelets, screws and rubber bushings.