Gweike G2 4in Duct Table Vent

I printed from PETG with supports on build plate only, oriented with the round duct on the build plate. 

The riser is a separate piece in order to allow the ‘tail’ of the vent to be supported off the laser table at various heights, depending on your workspace. If your laser is sitting directly on a flat surface, the uploaded version should be the correct height. If your laser table is elevated off your work surface, simply measure from the top of your laser table down to the surface you want the vent supported from and print the riser to that height. 

I just updated my model based on the photos I uploaded. I didn't realize the front lip of the vent pins down the removable table section. This isn't an issue for me, but I updated the model to shorten this leading edge to make removing the table insert easier.