With an order of 20 or more pieces - or more than 300 sq.inches, Eddy Electronics will make a prototype for no extra charge! This allows a last chance look at your design without having to go through two separate processes for prototyping and production. If you are successful with your design, we carry on with your production.  If there are errors, we can allow you to amend your design with minimal expense, ie. if you need only to change one piece of film  you only pay for one extra piece of film. The restrictions on prototypes are: no soldermask or legend, and no special laminates ( Teflon, Getek, Polyimide etc.). If special laminates are used for your product we will be happy to prototype your boards on a standard laminate. (FR-4,CEM-1,CEM-3). Remember, this free service is for orders placed.  It does not mean "free" prototypes without obligation.