BT-20 to BT-55 Transition

This 3D object is a transition from Este BT-20 tubing to BT-55 tubing. The distance between the two sizes of tubes (transition taper length) is 1.5 inch (38.1mm). It is similar to the Estes TA-2055 (P/N 70010) transition/adapter.There are four models:1) Solid,2) Solid with a 3.2mm hole to allow for screw eyes to be fastened to it,3) Hollow,4) Hollow with end caps.Other transitions / adapters:BT-5 to BT-20 Transitionhttps://www.thingiverse.com/thing:4921365BT-5 to BT-50 Transitionhttps://www.thingiverse.com/thing:4927099BT-20 to BT-50 Transitionhttps://www.thingiverse.com/thing:4892191Estes BT-50 to BT-55 Tube Adapter / Transitionhttps://www.thingiverse.com/thing:4744003BT-50 to BT-60 Transitionhttps://www.thingiverse.com/thing:4894927