This is an automatic giant spruce tree farm made possible using the new 1.14 mechanics, including the ravagers and the new tnt behavior. I've been trying to get one of these to work for a long time, and the new version finally made it possible. I'd love to say more, but there's really nothing more to say about it besides giving credit to the people whose tutorials showed me how to build some the parts that went into the design.


This machine makes use of a tnt duper created by Rays Works in a tutorial on Youtube. (I believe that qualifies for reuse.) A portion of the circuitry at the bottom is derived from an old ilmango design, also on Youtube, however I redesigned the area around the AFK spot to make it more accessible and, by extension, more user-friendly.
I had the idea to use ravagers as soon as I learned about them, but the idea to use minecarts is also based on ilmango. (Although, he only made a small oak tree farm.)

The rest of the design, including the blast chambers, and the timing for the tnt, as well as integrating all the aforementioned elements, is entirely my own design.