Suspension trolley for 1" pipe (33.5 mm OD).
Material: PETG.
Infill: 50%
You will need 3x M8x70(80) bolts with nuts and carabine or hook.
I suggest to use carbon fiber PETG for side plates.

This hanger was tested for 2 years for occasional lifting of ~50 kg load under normal conditions (0-20 degrees Celsius)
No signs of wear, but lifting capacity may vary significantly depending on ambient temperature.
Use at your own risk and do not use to lift people!