How tight should my short belts be?

[Semus 0]

Hey guys, I've been experiementing with my new UMO+, and I'm just not sure how tight I should be making these short belts for the X/Y.

I've heard some say they should be as tight as possible, but others say this can damage the motors.

Should I be using a decent amount of force when pulling the motors down when tightening these belts? Is there some way to test this?

Just for reference, when the motors turn, I can see one side of the belt "deflect" just a bit, as if one side is loose, and the other is not. It's very slight, but it's noticeable.

Any thoughts?

[DidierKlein 729]

Are they well aligned? No rubbing against the frame?

The motor should be pushed down as much as possible so tight is better

[Semus 0]

Are they well aligned? No rubbing against the frame?

The motor should be pushed down as much as possible so tight is better

 

Yes, they are very well aligned. I'll go ahead and make sure they are tighter. I guess I'm not pushing down hard emough...