Over de LPKF S62 PCB frees
The LPKF Milling machine is a 2.5D circuit board plotter capable of creating circuit boards by milling away copper from one or two sides of a blank PCB. Blank PCBs come with copper planes covering both sides. A fiducial camera makes alignment of the board easy, and through hole plating can be applied in a separate process. The S62 cannot apply a solder mask. Instead it mills away all copper around a trace. Lettering or silk screen layers cannot be done. To ensure your board functions, please make sure that traces and spacing are a minimum of 0.008 in (2 mm)wide and that polygons in EAGLE have an isolation value of at least 0.012 in. The smallest mill we currently have is 0.2 mm, and even hitting this width can be tricky, so plan your board accordingly. The maximum board size is 11 x 8 inches.
To create a PCB you need Gerbers files of your design. The files are then loaded into CircuitCAM and BoardMaster to created the final PCB.
Gerbers tutorial for Kicad or BMP drawings:
Gerbers tutorial for Eagle:
We use the CAM processor in Eagle to generate the necessary Gerber and Excellon files for the S62. Download the two necessary .cam files here: LPKFCAMFiles.zip
Step 1: Accessing CAM Processor and Jobs
To access the CAM processor go to [File->CAM Processor] from the Eagle Board Layout window.
The CAM parameters will be empty at this time. You can load either of the .cam files by selecting [File->Open->Job] from the CAM Processor window and then selecting the .cam files using resulting [Open] window.
Step 2: Using excellon.cam
Opening this job will load a single tab of parameters as shown below. Make sure that only holes and drills is selected in the layer list. This job will look at the drill and holes layers and create the drill data that CircuitCAM will need. No changes to the parameters are necessary. Simply, press the [Process Job] button and the data will be generated in the same directory as the .brd file loaded in Eagle.
Step 3: Using gerberforLPKF.cam
Opening this job will load many tabs of parameters for various board sections such as the border, component (top) side, and solder (bottom) side. No changes to the parameters are necessary. Simply, press the [Process Job] button and the data will be generated in the same directory as the .brd file loaded in Eagle.
Where are my Gerber and Excellon files?
After running, you should get a large number of new files that will be in your project directory. We are interested in the .drd (drill file), .bor (board outline), .sol (solder side/bottom), and .cmp (component side/front) files. The .dri file can be accessed in any text editor and can be used to verify drill sizes.