Very nicely done! Thank you!, Another way of accomplishing the same thing is to use the sheet metal unfold/refold workflow. The pattern would then be created on the flattened sheet. The holes would, most likely be perpendicular to the surface
dear brother, very good video but the reason of inclined holes is that your first hole was not normal to the surface. you selected the plane for sketching the hole and your surface was not parallel to the plane at the first hole point !! best of luck. salam !!!!