These are the Hextraction Basic Tiles, with no support at the notch. (This works well for me, even though I do not have a super duper part cooling fan).

I also chamfer the notch "for aesthetics". This may also help the tile to fit better into the plate when printing on some printers that are not set up perfectly.

Zip includes STEP files and single .m3f Files

Hextraction a game of Zack Freedman from voidstarlab https://www.playhextraction.com