Cable strain relief

Printed a smoothieboard enclosure for the Bear / MK3S clone I was building (https://www.thingiverse.com/thing:2104547) and needed a way to feed the print bed cable and main power cable to the board. Enclosure had a couple 19.5 mm holes in the design, so created a strain relief that'll snap in. Has a couple notches along the body for zip ties to lock down the cables.

I used some TPU I had sitting around, which worked great and gives some flex. Other filaments should work, but I'd consider cutting infill to allow a bit of flex on the fingers that snap into the hole.