Fusion 360 - A Rectangular Hexagonal pattern from a Equilateral triangle, or Put Holes in Part.

Workflow on a triangle pattern within a rectangle face. 0:00 Intro 1:15 Create the part 1:32 Sketch first cut 4:07 Extrude first cut 4:21 Rectangular pattern first row 5:04 Adjust dimensions to center pattern 6:05 Rectangular more rows using sqrt(3) 7:16 Adjust dimensions to center pattern 8:02 Rectangular pattern first cut in second row 8:35 Rectangular pattern second row 8:55 Rectangular pattern the last rows 9:18 Done