Gary Wilson Jr. 

(named by GF)

designed for Project “Cocktail mixer”:

• intended for 6 mm PTFE-Tube (might also work for smaller an up to 7-8 mm)
  -controlled by Micro Server 9g (SG90)
• printed in regular PLA

Since Im still working on a project I designed the Model to 

1)be easily fixed on a surface with two screws and 

2) to unplug the tube easily, without screwing the Model apart and unplug something the tube is connected to. 

There might be a drop come out after the tube gets pinched down but in total it works well.