8mm to 3mm

Customized version of https://www.thingiverse.com/thing:3764039

Created with Customizer! https://www.thingiverse.com/apps/customizer/run?thing\_id=3764039

Instructions

Using the following options:

outer_diameter_1 = 8
wall_thickness_1 = 2
barb_size_1 = 0.5
length_1 = 15
outer_diameter_2 = 3
wall_thickness_2 = 1
barb_size_2 = 0.3
length_2 = 10
mid_diameter = 8
mid_length = 0