I have a full write-up on this in RotorBuilds if you want to get into all the design choices I made for the Hachidorii V2. It also includes all weights, my build, and some keynotes. I also wanted to document other aspects of the frame such as potential builds, the durability of the frame, and some random notes that some of you may appreciate.
My introductory video on the Hachidorii V2 is also on my YouTube channel alongside some flights as YouTube Shorts. I plan to make another video on the Hachidorii V2 frame regarding where you can get the frame, the duct designs that I am currently experimenting with, and the future versions of the frame. Feel free to subscribe to the channel if you like the content that I do!
I also make more frequent announcements on Instagram concerning other projects and just some random bits of what goes on behind the scenes of making frames, recording and making videos, and naturally, my FPV journey.
Important Note About Canopies [Analog + Digital]
Using the M2x15 screws for an analog build will give you around 6.3mm of screw length to work with. You can cut the excess since you'll likely have some excess screw length. As for the Digital build, using M2x15mm screws gives you around 4.6mm of screw length for the canopy which should be enough for a canopy. Take note tho that you'll need to drill around 1.9mm holes (don't have to be exact, just slightly smaller than 2mm) on the canopy's mounting holes to press fit around the M2 screws.
As for the Digital build, using M2x15mm screws gives you around 4.6mm of screw length for the canopy. I've included some design pictures that will help you visualize where that second board can be placed. Apologies in advance if it does not 100% fit that great since I don't really have the funds for digital right now - and thus can only base my confidence on the digital designs and some math.