Hello. I have two falcons, both purchased in same order. They have not had any real loads or have been run extensively. Just now we noticed that one of them is much more audible that another. This one clicks at most speeds, and has a really loud click at a specific speed. Any help appreciated.
Video to demonstrate
I would contact vex support at [email protected]
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Make sure the shaft is fully secured to the motor. We had a problem where the screws from the shaft came out slightly and caused some unpleasant noises
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Same. We found this little surprise in our shooter motor.
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Aren’t you not supposed to disconnect the esc from the motor?
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The motor hasn’t been disconnected from the Talon FX. The case is designed to be opened to replace/swap the spline shaft out.
Instructions how to do so start at Page 31 of the User Guide
What exactly am I looking at here? A screw has backed out and is rubbing on the bearing?
Yes. The screw holding the shaft in has backed out a ways and is causing rubbing which in turn could be making that sound. Also check your set screws in the other mounting holes that you are not using and make sure they aren’t to far in.
We swapped out a Falcon 500 on our practice bot yesterday due to it locking up inconsistently when the robot was pushed or driven.
After spending over an hour swapping it out, we finally took the problem motor apart to find that the cooling port set screw was driven too deep and had scoured a wear mark in the side of the outrunner bell housing.
I sure wish Vex had used a stubby button head screw to plug the cooling port rather than a grub screw that can lock up the motor if it’s just a little too deep.
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We’ve had a set screw fall into the motor twice and lock up the motor or cause odd behavior.
Though our’s have been the set screws on the face of the motor, not the cooling port screw.
I strongly recommend removing the set screws and cooling port screws and loctiting in the shaft screws.
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I have taken the motor apart twice now. The first time nothing changed. The second time it seems to be somewhat quieter. I did not change anything. I made sure all shaft screws were tight and they were. The bearing is perfect with no clicks. All of the set screws have already been backed out to ensure it wasn’t touching. When we put it on the bot, they will for sure be taken out. I just can’t find out what it was. when the housing is off and ran, it is completely silent. But as soon as the housing goes back on it is making the sound again. Now it’s quieter, but still not sure. I still believe its something with the bearing, just don’t know for sure. Hopefully the sound isn’t there with a load on the motor.
Are you sure you aren’t using too long of screws for mounting? or that any of the set screws (cooling/mounting) are even just screwed in a little too far and are scraping on the inside even just the slightest? That is all this sounds like. If its none of that and it is silent when running it without the casing then I would Imagine it is the gear box or drive train making the noise not the motor.
Edit: I also just went back and looked at the video and it looks like the one that is clicking’s shaft is wobbling and almost looks like it is slightly bent. I would try a different shaft if you have one to see if that is the problem. If the shaft is bent it will wobble which in turn would cause the motor to make a sound kind of like it is making. Would like to know if you find this to be the problem.
The motor has never been mounted to anything, no plates, no gearbox. It has only been ran in free-spin as shown in the video. I dont know how it could have been bent. I can try a new shaft. I only have short shafts. and if it is the only issue, then I need to order a new shaft. Also they both have sort of looked like they were wobbly since the purchase. I’ll try.
Sounds good. Let me know because I am curious. Thanks!
Did you ever figure out what was causing this?
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