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| SteveM | 13-Jun-08 01:11 | | I decided to start putting slow blow fuses on my servos to protect against a failed servo. On these little HS-55's I'm using a 1 amp rating so I should never blow it under normal use. Has anyone ever done something like this before? Will it even help? |
| Xanadu | 13-Jun-08 22:41 | | Never heard of this, why worried about failing a servo? |
| Xanadu | 13-Jun-08 22:42 | | I have been flying these little hs-55 for a year now, with no problems. |
| SteveM | 13-Jun-08 23:54 | | It's not so much that I expect a failure as it is a safety measure that will hopefully never be needed. Even if a servo were to lock up mechanically I doubt the stall current would be enough to blow the fuse, but it also would not be enough to drag down the BEC and kill the receiver. But some day in the future, on this plane or another, with HS-55 or HS-5745MG servos, the brushes in a servo could fail and short out the BEC and receiver (I have heard of planes lost from bad servos). It's not an expensive or heavy safety feature so it seemed like a good idea to try it. Not to mention I don't like the idea of a high current power source and a load with no means of short circuit protection.
If I ever have a multi-engine brushed plane you can be darn sure I will have a fuse for each motor and even an ESC for different pairs of motors if is a 4 engine.
Maybe this is over kill, I'm sure servos don't short out very often and I could spend countless hours trying to protect against "what if". |
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