Hi- yes the base has an inbuilt tilt for the flow frames.
@John_Yeager The difference with my plan and a regular queen excluder is that when bees move UP through one they come out all over the upper box- with direct access to every frame above. With this vertical excluder they hit the face of one frame only. My concern is they be reticent to work their way all the way across the flow frames. Partly for that reason I decided to only use four flow frames. The other reason I only used 4 is I want to test out the theory that you can gather as much honey with four frames as with six- if you simply harvest then more regularly.
This hive is designed for the hands on back yard beekeeper. It’s great advantage is no boxes need to be lifted and all frames are at the same ergonomic height when you work on them. Also you only need to uncover a few frames at a time- so hopefully the bees will be less inconvenienced and stressed. The other great advantage of this hive is that you can run anywhere from 1 to 20 frames- you can expand and contract the hive by one frame at a time- it is easy to rotate out frames by moving them onto the queen excluder side so they get filled with honey- brood hatches out- and they can be harvested and replaced or removed. Also you can split the hive into multiple hives- making pre-emptive swarm splits right in the one hive.
thanks for you kind words about the hive- I hope it works as well as it looks!