Is that a really bad idea? I’m trying to microcontrol a car, but the screw keeps losening and the wheels don’t steer correctly. Normal superglue doesn’t work due to the tension. I can’t screw the screw in all the way since it needs to be longer, so I’m using a similar but probably incorrect screw, and I don’t have time to hunt for the right screw since I need to have this prototype working soon.
I read that the output shaft will fail on the servo if I use threadlocker, but does that mean right away, or eventually? What sort of timeperiod are we looking at here, and does it always happen?
I allmost allwayes use blue Loctite on every screw i draw in metal (and that is: in servoes to)
superglue (epoxy or CA) isnt good if you havnt absolutely clean surfaces, and if i is clean and you use CA, you whont ever get it of…
BUT
newer ever use Loctite on Carbonite as it “eats” the plastic
You just have to get a long enough screw that fits in the hole, otherwise you whont ever get it right, sorry …
If you are using a smaller incorrect screw, you may not be able to fix your problem due to lack of thread engagement. You might try draping a piece or two of thread down the side of the thread hole (with excess on the outside to keep the thread end from being lost down the hole) and then threading in the screw.
The screw is ALMOSt right, in that it sits there and doesn’t come out. But when I apply a torque and the servo twists, it doesn’t always rotate the screw the same amount as the servo rotates, meaning that my wheels aren’t always aligning in the same place.
As for the threadlocker stuff, if it just eats away over the period of say a month, that’s fine. I just need this thing to work for tomorrow.
By the way, a #4 tapping screw will fit snugly, tighter than stock, to hold a wheel onto a servo shaft. Bad thing is most big box hardware stores carry #6 and above. You might have better luck if you have a mom and pop hardware store in your neighborhood.
