Perforate: Fill a Sheet with a Pattern of Holes

Your task

Make this vent cover in SolidCraft 0.21:

1. Make the rule Steel 1mm: thickness 1 mm, bend radius 1 mm, K-factor 0.4, active.
2. Sketch a 120 × 80 mm rectangle on XY, corner at the origin, and finish the sketch.
3. Flange on the sketch to make the base.
4. Flange on both long edges at once: height 12 mm, angle 90°.
5. Press S and run sheet.perforate {"diameter": "5 mm", "pitch": "8 mm"} (press Enter).
6. Open Flat Pattern (Sheet Metal tab › Flat) and write down the flat size and the number of bends.
7. Press Export DXF… in the Flat Pattern, save the file, and look at it: INSERT tab › Insert DXF, then hide the body with its eye in the browser.

What to write down

• The flat length across the two bends (the Flat size row; the other side is 120 mm).
• The number of bends (the Bends row).

Type them below and press Check. Then try it yourself: double-click Perforate1 in the timeline, put "pattern": "square" inside the set braces, press Enter and export the DXF again. The holes line up in a square grid, and the flat size stays the same.