There are a ton of other vacuum adapters for different miter saws, this one is made simply to fit my older Ryobi TS1340, I wanted an easy dust collection method as the bag didn't work too well.
This is a very simple pressure fit 'tube', that was inspired by the shopvac's own linking method (with extensions).
The cylinder has one side OD of 36mm and other OD of 38mm, making it thicker on one side vs the other. The shell is also constant at 2.6mm, making this a nice pressure fitting.
Fits a shopvac OD tube of about 32mm.
2 walls with 50% infill, simple tube print, no supports. I used a 5 line brim to hold the model to the build plate