May be outdated now, use at your own risk.

Haven't tested this yet as I dont own a 18mm probe (someone I know needed it so I made it for them), but it should fit perfectly according to the cad files. The hole is 19mm wide (1mm more than the thickness of the probe). If this doesn't fit the probe properly because of this ask me in the comments and ill fix it.

Remix of https://www.thingiverse.com/thing:4072013 

Print Settings

Printer Brand:

Creality

Printer: 

Ender 3 Pro

Rafts:

No

Supports: 

Yes

Resolution:

0.3

Infill: 

25%

Filament: any PLA/ABS and stronger any

Category: 3D Printer Parts