|Aug 31, 2012, 02:23 PM|
Let the chips fall!
There are few models in my "hangar" with which I have a more love/hate relationship than my Rotor Concept HPQ1 quadcopter.
I've had a ball with it, but man, have I had problems, starting with paying twelve bucks for a propeller nut.
No bigger nut than me; that was my last purchase from Rotor Concept, but not my last purchase for the model.
I've been through five sets of props, four motor endbells from Goodluckbuy.com courtesy of trying to overtighten propellers which wouldn't snug up, some motor bearings (thanks, Align) and the discarding of the nightmarishly bad radio system.
All this before I'd even repaid my friend who fronted the dough to buy the thing in the first place!
On this, the day of my final payment, I decided to take it up for a little spin since it had sat idle for quite some time. I'd forgotten that the front counter-rotating motor was acting up.
When it decided to stop working properly this morning, it wasn't hard to see why.
As I picked it up, a small, black thing fell from it.
It was a small eight-pin IC chip from the ESC.
Yup. A chip came loose. I have never seen anything quite like this before.
It turned out that the ESC lost not one but rather two of these chips. The one I was able to recover wasn't burned nor did the board smell overheated. From what I could tell, the chips were the victims of cold solder joints.
They merely vibrated loose.
I imagine that I could simply get a low-wattage soldering iron and a couple of chips (I hate soldering ICs), but that would probably cost nearly as much as a new board and there's no guarantee that other components weren't damaged.
I found it under the LotusRC T380 parts listing at Goodluckbuy.com for the rather odd price of $47.79 with free shipping as opposed to more than 65 bucks plus shipping and tax from Rotor Concept.
Frustration, thy name is Quadrotor.
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