ShopVac connector

I needed a connector from my Carvewright machine to my ShopVac. I bought a DC Dust collector for the machine, but it had a 4" outlet pipe. My shop Vac hose was 21/4". I couldn't find one handy at Homedepot, so I decided to make my own.
This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/ewT9nZgMDfP