Hi Richard,
My new project is a single side routing two side component placement board, some Non-plated drillings I want to prepare. I use the job called Excellon and add new items 'Generate hole data' and 'Generate drill data', then I select layer 45 to 'Generate hole data' and layer 44 to 'Generate drill data', then process the job. Three file which are .drd file, .dri file and .hol file are produced. I use cam350 to open these file to check if they are all right, but the .hol file is very strange. My question is how to Preparing Non-plated drillings, is my process wrong?
Jason
fig 1: Use job Excellon and add item of 'Generate hole data'
fig 2: Use job Excellon and add item of 'Generate drill data'
fig 3: produce three files( .drd .dri .hol)
fig 4: Use CAM350 to open the files
fig 5: Use CAM350 to open the files
fig 6: holes layer
fig 7: drill layer
