I found ther nuecleotoids kept separating and I was afraid of genetic mutations (joke), so I used silicone O rings as rubberbands to hold them together.

I used Bambu's PETG-HF filament with PLA for supports. I found the PETG-HF is a lot more brittle than the standard PETG and I was having some cracking problems snapping the neucleotoids to the bases. I am going to try again with a higher density infill.

Very nicely modeled, kudos to mkuiper!