DNA Buddy - Double Helix Desk Toy

A 3d model that's supposed to loosely resemble a DNA double helix with arms and articulated legs attached to make it a typical “buddy” gift model. I was surprised that I couldn't find an stl for this sort of thing on any of the usual suspect websites so went ahead and modelled one from scratch in fusion – and let me tell you, it was far more effort than it was worth, 1/10 do not recommend, just print this instead, I suffered so that you don't have to. I've set the offset for the helices to 34 degrees to get what looks like the right sort of spacing to my untrained eye.

The .3mf I've attached has 1.5 bridge flow and I've slowed the bridge speed down massively. It should print WITHOUT supports. My attempts to print it with supports resulted in a very fiddly time removing them and worse bottom surface quality than I got just letting my A1 mini bridge it. Be careful scaling it up though because that bridging distance will increase and I think the ~30mm gap the model currently has is about the limit for clean bridges. Even as it is you may find yourself needing to run a lighter quickly over the bottom surfaces or snip a loose bit of filament from the bottom rung. You may also find that the bottom surface in 1 direction on the helices is not as smooth as the others, my best bet is this is due to the cooling fan orientation, and so for the A1 mini the part is oriented for that surface to be at the back – but I'm not sure how that will translate to other printers. If anyone has any ideas on how best to combat this I'd appreciate the help.

Pictures are of my own prints at 100%, the middle one at the back was printed with the stl in this 3mf, but the one on the right is better representative of the settings used in this profile. (The middle one I tried variable layer heights and as you can see from the picture that reduced the quality of the bridging and bottom surfaces.) Filament used in the pictures is sunlu 2 tone silk PLA+, with the extra patterning from auto refilling multiple small sections of filament because I had to chop a reel I'd accidentally dropped and unravelled into many smaller bits. 

Also included a 50% and 75% scale profile and see here for a version without the “buddyfication”. (Will update with link here)