Notice: This dust collector is designed as a consumable item to reduce material consumption (22g) and printing time (45mins). It can handle at least 20 usages, which is enough for a normal day installation. Its design is purely functional, so may not look good. But it surely works perfectly.

Pre-support with a thin wall, and print with PLA filament will be great. You don't need to add support while slicing, but you must use the Arachne wall generator. Print and remove support (very easy, see the following picture), and you are good to go.

You could apply some masking tape on the top and bottom wings, to make sure this collector doesn't have any gap with the wall, and will not move while drilling. The inner diameter of the vacuum tube is 31mm, which is suitable for most vacuum tubes.

Compared to V1: fine-tune some pre-bridging for a more stable printing result.