someone can help me constraint everything in the sketch pls?

[maoz57125712]

ive tried to constraint it  a lot of times and for some reason it didn't work
can someone help me?
the fille attached below

[laughingcreek]

You have several miniscule ark/line segments floating around that would need to be deleted.  such as this arc here-

you have also moved one of the "rings" off the sketch plane, creating a 3d sketch.  going to be hard to constrain that, and even then, 3d sketches sometimes won't show as fully constrained even when they are. (a long standing bug that is unlikely to get fixed anytime soon).

a few suggestions-

-symmetry/mirror constraints have also always been problematic (ie buggy), would suggest not using them, there are better ways that have the added benefit of also visually showing design intent.

-2 options for dealing with that ring that needs to be turned 90deg.  you can put a line where it needs to be, put a plane at an angle on that line, and create a sketch on the that plane for you ring.

or (and possible better)

just create the first ring, but make it a separate component.  then you would joint an instance of that component in place.  pattering many components seems to be less computationally heavy than patterning bodies. plus you only have to make the ring once.

[maoz57125712]

if you don't mind,can you show me how to do the last thing that you said?
I'm pretty new to all of this so it sounds really complicated to me

[laughingcreek]

here's an example model.  in the time line you can see where I copied the component for a link and jointed it in a new spot.

every thing is controlled either from sketch 1, or the 2 favorites in the parameter table-

[maoz57125712]

thanks!!!
can you please explain to me how you did all the equations that are in the sketch
and what every single one of them means?
i didn't get it

[maoz57125712]

you can?

[maoz57125712]

can you please explain to me how you did all the equations that are in the sketch
and what every single one of them means?
i didn't get it

[laughingcreek]

I'm just using an angle to determine the spacing between chain links.  may not be the ideal way of doing this, but the example was more about making the chain link a component, and then positioning with a joint and then pattering the components (instead of bodies) around the circle.

the angle is determined by the total number of links going around the circle (360deg/total number of links). except the links don't go all the way around, they are absent between the jump rings.  so the total number of links that will need to be divided into 360deg is the number of links to use going around the circle plus the number of hypothetical links that drive the spacing between jump links.