986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - DIY: Repair HVAC Blend Doors using Plastic Plugs (i.e. fix for foam in air vents)

Carlton Bale · 02-09-2022, 03:06 AM

There definitely is an engineering reason to cut different shaped holes: To remove as much material as possible and still maintain the structural integrity of the part. The size and placement of each size of hole is proportional to the size of each panel.

02-09-2022, 03:06 AM	#12
Carlton Bale Registered User Join Date: Jun 2006 Location: Indianapolis, IN Posts: 26	There definitely is an engineering reason to cut different shaped holes: To remove as much material as possible and still maintain the structural integrity of the part. The size and placement of each size of hole is proportional to the size of each panel.