PLA gymnastic rings

2022 update. after 3 years it broke. But I think it's mostly because I left it outdoor, exposed to rain and sun all this time.

2019/oct update: 1 year later, I still use it to exercise routinely, many times with 10 to 15kg extra and they are still not showing any sign of danger. Exposed to the sun and rain all this time.

Gymnastic rings are kind of expensive around here, so I decided to see if I could print a very strong of my own.


For that I put concentric rings inside the print. They ensure that the pieces has a LOT more strength than it would with just regular infill, since they define the direction of the print with the shell of each ring.

I tested so far doing 12 pullups on 77kg (67kg + 10kg belt https://i.imgur.com/qB0OMKo.mp4 video of it) using one ring. Normally you should use one ring for each arm, thus not exceeding maybe 50kg for each ring. I can't guarantee it will work with more weights but I will test.

The shape is what I assumed it would be a safer shap