- #Altium designer 16 options to generate bom with dnp how to
- #Altium designer 16 options to generate bom with dnp registration
- #Altium designer 16 options to generate bom with dnp code
any X-Y offset in the stage is compensated. The imager traces the outline of the square pad and calculates the geometrical center. The reason to peel back the soldermask is so the imager can see a sharp contrast between bare FR4 and the copper of the pad in the fiducial.
#Altium designer 16 options to generate bom with dnp registration
During board registration in the robot it will automatically go to 0:0, look down with the camera and calculate the offset between the center of the square and where it is positioned. if you call your fiducials FIDU-SQUARE and FID-ROUND this is a que for them to pick up the right one during programming of the robot. The PAP line item contains layer index and x/y. this makes it easy for the assembly people to calibrate the robot. this gives you 6 lines in the PAP file containing the center coordinates. that way the pick and place file will contain the center coordinates for these pads. Let me explain why : You want the fiducials to be exported as a SMT pad. DO NOT USE a MULTILAYER pad with diameter set to zero. You place one square and two rounds on top layer, and one square and two rounds on bottom layer. You cannot have ANYTHING in a circle 20 mils around the fiducial. The soldermask peelback needs to be 15 mils so the robot gets a good contrasted view. one with a square SMD pad and one with a round SMD pad. you typically put the corner one on coordinates o.o _ / \ | O | | | | | | | | | | | | | | _ | ||_| O | \_/ the square one is centered at 0:0 the others sit at 0,x and y,0 You need these on top and bottom lyer ( if you have parts on both sides ) You need to make 2 pcb footprints. ( that means : at three corners of the board ) The one in the corner of the L has a different shape than the others. You need 3 of them and they need to be placed in an L shape.
#Altium designer 16 options to generate bom with dnp code
#Altium designer 16 options to generate bom with dnp how to