Yes Dalia you are right, I have problem with handle on sculpteo. It say it is not tick enough (0,34mm). This model is not hollow, but sculpteo make automatically wall thickness. I think, I am not 100% sure.
10.5 x 13.8 x 6.4 mm is dimension on sculpteo. Maybe I should make heart and handle much larger then make hollow model. But then I need put one hole for output of excess materials. I don't like idea putting hole on jewelry.
I am new in 3d printing so i need to test and learn more.
Also when I upload model here I was first time select "Upload to Sculpteo", but nothing happened, so I was upload there manually, just to see how this works. Is there some approval method for uploading on sculpteo trough cg trader?