Unfortunately, I must have rushed my measurements in onshape, because I didn't account for enough space between the bottom of the pipe and the top of the detector. It's long enough now that I can't fit it on my print bed in one piece, so I had to redesign it in two pieces. I'm going to just use simple square wedges to connect the two, since this thing weighs next to nothing, and I don't want to get fancy.
![Image](https://i.imgur.com/iZJ2CpU.jpeg)