How to add ring to model

[Anonymous]

hello,

i'm trying to add a ring to this model to make a key chain. i do not know how to add it so that it's centered perfectly. i'm also worried about scaling when i go to print this if it's in the center?

any help is welcomed, thank you

[davebYYPCU]

Your text is difficult to understand, What ring, and in the centre of ...

Draw a box around the model, draw a diagonal line corner to corner, the midpoint of the diagonal is a usable centre point.

Might help....

[Anonymous]

hello,

i meant a jump ring on top of the flower! and by center i meant halfway on the model. which is still a problem

edit: i got the jump ring attached! but i do not know how to make it all one model and how to adjust the thickness of the ring

[davebYYPCU · Accepted solution]

Did you check the pic, cursor ???  They dont get captured, but starting to get the idea.

Sketch the ring on the Midplane, between the top and bottom faces.

Might help....

[davebYYPCU · Accepted solution]

i do not know how to make it all one model and how to adjust the thickness of the ring

You did not have a good start, Your base model sketch (SCG with dual lines that are locked) has to be offset (adjustable) to the required thickness (closed track), before going into any of the model areas.  That's because the islands and crossing curves, will not work in any other method, other than to extrude a shaped profile, and then it will be adjustable for thickness (common offset dimension).

The svg is hundreds of short lines, redraw a single continuous line/s with tangent arcs in my test, then chain offset the segments, but do not trim them.  Extruded body can be adjusted by changing the offset size.  

When you have the base model, then the ring if it overlaps the wall of the flower just a bit, will Extrude or Revolve with Join to be the one model.

Might help....