Free 

I adapted the model from PeterH1500 (many thanks!) to the gray KG pipes which have a diameter of 50mm.
I made the following changes: - Inlet diameter changed to 50mm - Changed the diameter of the outlet so that a 50 mm pipe can be inserted - I hollowed out the ball so that not so much material is used. - All parts have been reduced to 50% of the size. - Some more smal changes
The ball should be printed with support structure (e.g. tree).












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