Props coming off

Hummingbird.UAV · Jul 16, 2019

Most every time I bump the tello into something and it falls to the ground it looses one or more props. Anyone glue props on with cyano glue?

Hopalong · Jul 16, 2019

Mine also kept falling off,this time it could not be found.Broke into my spare prop stash,and these seem to fit down tighter.Ya need to here a SNAP when swapping props I have found.

Rjg · Jul 16, 2019

Hummingbird.UAV said:
Most every time I bump the tello into something and it falls to the ground it looses one or more props. Anyone glue props on with cyano glue?

Yes, I do. There's two very important issues regarding doing so. First, is applying just a dot (not a drop!) of super glue to tip of motor shaft any more than that and you run the risk of it oozing out and into top motor bushing, thus locking up motor...
Two, make sure to seat prop all the way down quickly and flush to motor so it doesn't sit higher on shaft and chance of blowing out bottom of motor in hard crash..
Recently, I've been using thread locker (LockTight) red anaerobic sealer, it cures in the absence of air. Not as strong as glue but less chance of destroying motor, and you can see it better for easy clean up, cures slower than glue so you'll have to let it sit for awhile

Hummingbird.UAV · Jul 16, 2019

Rjg said:
Yes, I do. There's two very important issues regarding doing so. First, is applying just a dot (not a drop!) of super glue to tip of motor shaft any more than that and you run the risk of it oozing out and into top motor bushing, thus locking up motor...
Two, make sure to seat prop all the way down quickly and flush to motor so it doesn't sit higher on shaft and chance of blowing out bottom of motor in hard crash..
Recently, I've been using thread locker (LockTight) red anaerobic sealer, it cures in the absence of air. Not as strong as glue but less chance of destroying motor, and you can see it better for easy clean up, cures slower than glue so you'll have to let it sit for awhile

Thanks for the tip, just happen to have some red LockTight.

Pilot47 · Jul 17, 2019

I suggest just changing props, not using superglue. Props are cheap enough, even OEM props. Don't risk messing up your motors. Once they start coming off that's pretty much it, I just change them. New props work best anyway. That's my advice.

Abc74sp · Jul 17, 2019

I saw a video on YouTube where you teach how to put the helices with paper glue. The cyan glue should not be used because it will not let out more.

Kyle Knox · Jul 17, 2019

Pilot47 said:
I suggest just changing props, not using superglue. Props are cheap enough, even OEM props. Don't risk messing up your motors. Once they start coming off that's pretty much it, I just change them. New props work best anyway. That's my advice.

I agree, don't glue the old ones, just put a fresh set on. During the last school year, my students in our Drone Club had plenty of crashes and started having the same issue with loose props. A fresh set always went on tighter and stayed on. For the health/life of your Tello, please just get a fresh set.