First, we have to produce the manufacturing file outputs: Gerber files, which encode the following layers: * Top overlay (for labels): *.gto * Top solder mask: *.gts * Top layer (for copper): *.gtl * Bottom overlay (for labels): *.gbo * Bottom solder mask: *.gbs * Bottom layer (for copper): *.gbl

And, if you have inner layers: * VCC inner layer *.gp1 * GND inner layer *.gp2

We do this by: * From the *.PcbDoc: File → Fabrication Output → Gerber Setup. * Go to layers tab and 'check' the above 6 (or 8) layers like the picture below Gerber_Setup.JPG * Go to the Drill Drawing tab and 'un-check' both the Drill Drawing Plots and the Drill Guide Plots * This procedure will also produce a Camtastic file (*.Cam). Save it as Beobot2_prototype1_CAMtastic.Cam. * From the Camtastic file: File → Export → Gerber. Create a folder named “Gerber” and store them there.

We also have to create a drill files for the holes in the board:

From the *.PcbDoc file: * File → Fabrication Output → NC Drill Files. * Change the '“Generate Board Edge Rout Paths”' to 10 mils. * This procedure will also produce a Camtastic file (*.Cam). Save it as Beobot2_prototype1_CAMtastic2.Cam * From the Camtastic file: File → Export → Save Drill … * Select layer L1. Ok. * From the Write drill menu: save the cam.drl file to the Gerbers folder

Zip all 7 (or 9) files to a single Zip file. Name it: beobot2_prototype1.zip We now ready to send the Gerber files to be checked for correctness at [http://freedfm.com freedfm.com]

Go to the website.

Fill in your email and upload the Zip file. It will go to another page and it will ask for the following information:

* Design File information. The outer layers should be easy to add. There is a table (“Click here to see a table”) * For the inner layer VCC and GND: *.gp1 and *.gp2, select inner layer. Make the polarity both negative. Select layer 2 for *.gp1/GND and 3 for *.gp2/5VCC. * Fill in Part Number as B2P1 * No on ITAR (for exporting permit to foreign countries, i think). * Solder mask sides: both * Silk screen sides: both * X,Y dimension: 12 by 5 inch. * Fill in other order related info.

Here is a snapshot of the FreeDFM page:

FreeDFM.JPG

We wait for the results to come back via email.

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