1st question…, My board has a to-220 package regulator and it lays on the PCB. I have set the mounting holes but I’m wondering if there’s a correct way of aligning the hole in the heatsink tab and the mounted hole in the PCB. I guess I have it pretty good but it seems like there would be a locking or alignment snapping feature.
2nd question…, Is there a correct way to assign the to-220 to the mounting hole? Right now when I run the error check the I’m getting “drilled holes to close” and “courtyards too close”, (sorry, don’t have computer in front of me). Well yeah, they are too close, the tab hole is literally aligned with the mounting hole. I think I could play with the clearance in both the to-220 and the mounting hole to get rid of the error but I’m assuming there’s a correct method, which I’d rather do.