This is my version of a cord stop featuring a compliant spring design. I have found a very similar design on a different platform, but the design presented here has a nicer finish in my opinion. With just two printed parts, this cord stopper is quite simple and efficient. The central hole has a diameter of 5 mm. Works well with thicker cords, especially those made from cotton (see white bag in the accompanying photos). Thin or slippery cords don´t work so well. As material I used PLA+. I assume also other materials like PETG would work fine.

A word of caution: when detaching the spring button from the build plate, exercise care with the scraper tool. I had one jumping off the plate behind the back panel of the bambulab printer, couldn´t find it again.