DNA playset (looser joints)

thingiverse

This is a simple remix of the DNA playset by emmett with looser joints for those who struggle printing the original. Includes STL files as well as modified SCAD. To acknowledge the original source: "... This is an accurate 35,000,000:1 scale model of DNA. It's a playset because you print out copies of the four nucleotides (A, T, G, and C) and snap them together into whatever sequence you like." Please take a look at the original description! This is a stunning design and very enjoyable for kids! In this remix, internal spacing between snap-on joints has been increased to make pieces both easier to print and join together. I tested pieces using a 0.3mm layer height with slight elephant foot and they still fit well enough. Pieces are designed to be printed hollow (for speed and flexibility): adjust printing settings to use two perimeters, zero infill and zero top/bottom layers. If you have trouble printing those despite adjustments, don't give up! Try adjusting the first layer compensation to avoid having any sort of squash. Try lowering the layer height to something smaller (0.2 or 0.15 recommended) to get better tolerances on joints. If all else fails, print bigger: scale model to 120%.