This articulated Ekans has 36 joints, though at the scale I have provided there is plenty of room for more links, should you want to add them! All body links, except the one closest to the “rattle”, are identical so you can copy/paste them to make the body longer.
The size I have provided is the largest I could make the full-colour version before printing time became too long.
Brims and supports are not required. The only exception is if you use a textured PEI plate, whereby a brim may be needed.
Raw STL files are Patreon exclusives. If you want access to them, or to sell prints of this model, please consider subscribing to my Patreon: https://www.patreon.com/thomastedwards