G+_Johnathan Turner (Refra Posted November 3, 2014 Share Posted November 3, 2014 So, about that quad copter repair episode. . . I got my Syma caught in a tree and after I was able to get it down one of the props isn't working. What should I do to diagnose it? The prop spins freely so I think it might be something with the motor. Link to comment Share on other sites More sharing options...
G+_610GARAGE Posted November 3, 2014 Share Posted November 3, 2014 How do the gears look, is everything meshing properly? Do the gears still have all of their teeth? When it got caught, did you try to force it out of the tree by running the motors long and hard. The motors need air to stay cool. If you ran them too long, and one of them was stalled, it could have fried the motor, or the motor controler. Link to comment Share on other sites More sharing options...
G+_Johnathan Turner (Refra Posted November 3, 2014 Author Share Posted November 3, 2014 The gears look fine. It is possible that I cooked the motor. I gave it a few couple second bursts to see if it would free itself from the tree. Is there a simple way to diagnose if that is the issue? Link to comment Share on other sites More sharing options...
G+_paul B. Posted November 3, 2014 Share Posted November 3, 2014 There is a good way to test and see if it is a motor/gear, or if it might be the ESC, . They have them built into the board and it can burn out. The good part of quads is we have four of everything (or the worst part...) One of the other nearby motor leads should have enough wire room to plug into that port. Take off the body and plug in a known good working motor into the non working plug .... see if it spins. If it does, then it is the motor or the wires to the motors... Link to comment Share on other sites More sharing options...
G+_Fr. Robert Ballecer, SJ Posted November 3, 2014 Share Posted November 3, 2014 Quick note here: The Syma doesn't use motors with plugs. Everything is soldered onto the integrated receiver/flight controller. --- So he'll have to snip the bad motor, snip a good motor, splice the bad motor to the leads of the good motor. If it works, then you've cooked the ESC and pretty much your quad is now just good for parts. If it doesn't work, then you've killed the motor and you can buy a replacement on Amazon for ~$3.00. Make sure to snip in the middle of the lead, because you don't want to be mucking with the soldering on either the board or the motor. -- Once you've got everything back to normal, you'll need some heat-shrink tubing and a soldering kit to get everything back to normal. Come to think of it... I'll probably make this a quick tip on the next episode. :) Link to comment Share on other sites More sharing options...
G+_Fr. Robert Ballecer, SJ Posted November 3, 2014 Share Posted November 3, 2014 Also... if it IS the motor... remember that there are two different replacement motors being sold... a CCW and a CW rotation motor. Get the right one. (makes it easier when you're putting the kit back together if the leads are the right colors.) Link to comment Share on other sites More sharing options...
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