creating an arc ring (jewellery)

[navpat]

hi all,

i've been trying to creating this ring but everytime i revolve a rectangle (1mm x .5mm) it offsets at a weird angle. im trying to make 2 cuts. one for the top arc and one for the bottom. please help me out. i've attached the fd3 file

thanks in advance!

[ryan.bales]

The main issue is that the rectangle drawn in your sketch is offset of the sketch plane (its a 3D sketch). This makes it off of the center axis/plane used when revolving the body. 

[ryan.bales]

The quickest fix is to edit the sketch, select the rectangle and right click, then pick 'move to sketch plane'
An observation - this design is full of unconstrained sketches. It would be wise and prudent to define them fully!

[navpat]

there's no option for that. what can i do? can you show me in the fd3 file please?

[KristianLaholm · Accepted solution]

I cleaned up unused sketches and draw the arcs in sketch with dimensions.
Emboss the arcs and then used revolve on 2 faces.
I hope I got your design intent correct?

[navpat]

yes! that's exactly it! how did you do the revolve exactly? did you revolve a rectangle? please and thank you

[KristianLaholm · Accepted solution]

I used 2 faces created by the Emboss feature (yellow in image bellow).
And set the Revolve angle less then 360deg to not cut away the "arc-design"

[navpat]

ah ok! thank you so much 🙂