We perform various DFM checks when you upload your project, so by the time you have a quote there is a very good chance the project can be built and the price is accurate. 

For example after upload you can see the packages overlaid on your PCB on the board tab.

After the order is placed we do some additional checks but it's rare for a project to fail DFM at this stage. 

For more information on our quality control, please see this article: http://docs.circuithub.com/en/articles/62944-how-do-we-handle-quality-control

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