AEG CX7 28mm vacuum adaptor

I remixed a thingiverse vacuum adaptor I to make it more elegant and more suitable for printing. In other words:

• no support needed
• thin wall thickness to prevent excess material
• wall thickness is 1.6mm or 4 x 0.4mm (nozzle diameter) to speed up print and prevent unnecessary infill

print instruction:

• use a new slicer! (as prusaslicer 2.5), the “Arachne” slicing technique is perfect for the slight wall thickness variation 
• use minimum 2 wall layers
• maybe a brim of 4 mm for the stability
• maybe reduce de elephant foot compensation to 0 mm
• use PETG (more airtight than PLA)