Hello, for a project I am working on, I need to knows the screws necessary for mounting one of these servo motors. Also, what type of screw would work best for tightening something to rotate from the center of the motor? Thanks!
These servos come with screws for mounting the servos. They also come with self threading screws to secure the servo horn to output shaft of the servo. You're generally better off attaching the thing you want to rotate to the a servo horn rather than trying to attach it directly to the shaft.
Besides the self threading screw which comes with the servo, you could use 2-56 hardware to attach things to the shaft. These plastic geared servos don't have threads initially. Whichever screw you use the first time will cut its own threads. Once you've used one size of screw you can't really use a different size (diameter or thread size). If you try to use two different types of threads, they end up stripping out the plastic.
Larger metal gear servos use nice M3 threads. This makes it easier to attach none standard items to the servo's shaft. Some of the smaller servos also have threaded shafts. I'm not sure, but I think they use M2 machine screws.
Thanks DuaneDegn! I was really unsure of how to go about screwing the various servos in my project, but this seems to have reseolved my issue.
You need a selection pack of machine screws and a digital caliper for xmas!
Hot glue might be useful. It makes strong and usually removable bonds that exceed the strength of the servo.
zoomkat:
Hot glue might be useful. It makes strong and usually removable bonds that exceed the strength of the servo.
I've used Polymorph with servos several times.
Polymorph can bond with the plastic of the servo which is why I added copper tape to the servos.
The two servos on bottom are controlled with the same I/O line. It's my poor man's 360 degree servo.
zoomkat:
Hot glue might be useful. It makes strong and usually removable bonds that exceed the strength of the servo.
Alas hot melt glue melts when its hot so can be unsuitable for gluing components that dissipate
heat like motors and servos - depends on how heavily loaded for a servo.
depends on how heavily loaded for a servo.
If a servo gets hot enough to affect the hot glue, there are other issues going on. The attached pix shows a nut I hot glued to a servo opposite of the servo horn. Just for testing bond strength, I suspended a 10 pound weight from the screw while inserted in the nut and the bond held.
