These are the dimensions for a perfectly tidy core composer layout.

For vertical clearance, you will want 36 power floors of space, 34 for the research tree structure and 2 for the core composer itself. I opted for 40 power floors of vertical clearance to give myself some wiggle room in case I measured something incorrectly. 36 is a great number since you can use the 12×12 grid size on the MOLE and 12 is a multiple of 36.
To dig down, I used the pickaxe to dig down twice which gives me the height of one power floor. I kept count by making a vertical column of power floor blocks. Once I hit 12, I stopped and used the 12×12 grid to block out the space.
For horizontal clearance, you will want 7 power floors of space on every side of the core composer if you want the research core trees to touch. If you want one core of space in between each tree, you will want 8 power floors of space on every side of the core composer.
I spaced it out by counting 8 blocks from the corner of my cleared space to place the first core composer. Refer to the layout grid shown at the start of the article to get a visual illustration.
Hope this helps OCD base builders. I also dug a giant hole away from most places to create an out of sight and secluded area to house the cores.

As for my sources, I got the research core tree dimensions from user Severe_Asparagus6539 in this post on reddit: https://www.reddit.com/r/Techtonica/comments/15748ev/is_there_a_hight_limit_for_the_core_composer/
Thanks Asparagus!
P.S. I’ve confirmed the dimensions as reliable and each tree should house 1,000 cores.
