How can I upload image of my model?

sometimes it does not work that u edit your profile and upload your model.there are 2 option:
1-click on edit icon in top right of your model page and upload your screenshot
2-you can also simply click on renderings tab in your model page and click on browse and upload your image(recommended)

screenshots show two ways

How to edit and upload images for a model after uploading it

Hi, is very easy only go to visite this link:
http://help.grabcad.com/article/118-how-do-you-edit-a-model

You can edit your model, just click "upload" and select image file. It will be added to renderings automatically.