End cap for profile pipe 60x60x2

A plug for a 60x60x2 profile pipe, adapted for 3D printing.
This plug can be repeatedly put on and removed from the pipe without losing the tightness of the fit.
The photo shows a modified model of the plug, in order to show that the model is working.
Perhaps I will post a modified model later, if someone is interested

Use PetG plastic and print line width - 0.5 mm (0.4 mm nozzle will do)