Assuming this relates to me and you are referring to the measurements, these are the notes, scroll down to point 15.
Hello, I coincidentally was using a technique similar to yours by using the HSW part stl as a separation layer. It worked but I was annoyed b/c the petg supports started at the middle ridge of the beneath part instead of the top most surface. This lead to a lot of time picking out the left over pet g from each hole. . To eliminate this for my 2nd try, I flipped the honeycomb so the flat side was facing up. Then added the sep layer followed by an upright stl for my 2nd layer. Of course the design is a symmetrical so there is no good way to align the top and bottom if they face opposite directions. But some harmony can be found and the spaces left out will need to be supported from the bed.
But here is where I completely feel your frustration. No matter how hard I tried. The 2 layers would not align within the safe printing area causing the error message and blocking the ability to slice. And boy did I zoom way the heck in trying to find that magical spot but no joy.
Im going to follow your technique to the letter and hope this yields better results. One would think this massive project would have an answer for this by now. I wanna start the print just before I go to bed and would like all that time to be used printing multiple panels. Someone must have figured this out by now. But you might be our best hope!!
Thanks for the tut. I’ll report back the results.