Duet Laser Filament Sensor Eclosure

I created this sensor case to enable a full retract of the remainder of filament after the filament out sensor is tripped. The case has two e3d heat breaks with conical entries for ease of getting filament through. at the end is has a ptfe quick connect for easy connection to the existing tube on my printer. The images are of a white case. This because my printer is all white. I did paint the inside of the "laser chamber" black.

Printing it in black is probably an easier route.

Duet Laser sensor v2 https://www.filastruder.com/collections/electronics/products/duet-filament-sensor

M6 4040 t-nut https://www.amazon.com/IZTOSS-200PCS-Assembly-Aluminum-Profile/dp/B072MGFR9K/ref=as_li_ss_tl?keywords=m6+4040+t+nut&qid=1565999482&s=gateway&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExVVZDMTI3UVNENzIzJmVuY3J5cHRlZElkPUEwMjg5MTcwM09SRlQ0UjFZMVdWWCZlbmNyeXB0ZWRBZElkPUEwMTk5ODkxMUYyQUg0Q0RSQ04zWiZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=&linkCode