Bambu Lab A1 Mini Mast Topper Gridfinity Base

So… this is a weird one.I wanted to add a VOC monitor on top of my A1 Mini. Barely knowing Fusion360 and liking Gridfinity, I went with “remix another model” before deciding to rebuild from scratch 4 or 5 times.The idea here is to be able to drill through the center of a 2x2 screw-together base plate by Kyle Warren to attach it to the top of the A1 Mini's mast/z-axis.I included a remix of that base plate to make things easier, though. More on that in a bit. The “top” and “lock” are inspired by the design by LwFactory for the A1 Mini handle. Basically, you remove the top bolt from the front of the A1 Mini z-axis and an additional 3 under the cap. The top fits back in place using the 3 factory bolts, and the lock slides in to line up with the z-axis bolt at the top.I'd like to clarify that while I originally did try to remix the model by LwFactory (at the time I think the license was different?), I wound up needing to make it all from scratch, in the end. I also wound up making a