Couldn´t find a matching kind of O-Ring to replace the “bumper” part from my heavy (metal) doorstopper.

Would be odd to buy a new one, just because the upper ring got broken through the years.

And when buying O-Rings (sealing rings) that size, just for a doorstopper - they are quite expensive compared to the doorstopper

So I decided to create one as a spare part.

Inner Diameter is 78mm, while the Ring itself is 13mm.

Printed in TPU of course, everything else would make no sense (and a lot of noise) 😅

And even if it might not last as long as the original one - just print a new one whenever needed.

Feel free to modify and remix at will, to prevent any similar doorstopper from being thrown away, just because the bumpy ring got broken.

Printing Profile provided was GEEETech TPU, printed on A1 Mini and PEI plate with 0.4 nozzle . Just adapt if necessary.

Happy printing… 😉