Correlation Vase (vase mode assembly!) (Patreon)

Howdy, wonderful people!

I set out to make a vase mode assembly that carried a similar style to the Reciprocal Vase and the Inversion Vase with their wavy lines and counter-swirls, with the plan that those inset bits could be different colours for enhanced snazziness!  And here we have it, the Correlation Vase!

There were some learnings along the way on this one, mostly around the properties of the geometry that would need to be in place for this to work...

First up, the outer curve shape needed to be a circular arc so that the insert parts could slide neatly in.  Actually, that's not entirely true - the outer profile could be a straight line instead, like the vase mode assemblies I made years ago (wow, has it really been that long?).

Secondly, the cross section of the inserts need to be either consistent all the way up, or at least only get larger, and not smaller again, or else things would get jammed up on their way in.  This was the trickiest bit, purely because those previous vases used techniques that meant the inset part varied in cross-sectional size depending on the width of the vase - take a look at the Inversion Vase inset bits and you'll see what I mean, they get bigger and then smaller again.

The third thing was something that became blindingly obvious during testing when I had an earlier version with a vaguely triangular cross section - the insert needs to be able to rotate within the slot as it moves downwards!  So, that basically means either the slot, the insert or both need to actually be circular with respect to the path that it follows as it twists around so that it can rotate into place.

Right!  So, with all those things sorted out it finally came together nicely!

One other notable design feature is that the bottom of the slots in the main body have a rim that matches bevels on the bottom of the inserts, and those stop the inserts from falling any further downwards.

Print Description

These are vase mode pieces, so set your slicer accordingly!  The main body is an easy vase mode print.

The inserts, though, might be tricky!  They are long and thin, so you'll want to make sure you have excellent bed adhesion, and you might want a brim, too.  Also, you might need to print those parts very slowly, especially towards the top, since long, thin parts like that are prone to swaying in a way that can impact print quality, even in vase mode!

Print Dimensions

The main vase occupies 99mm x 99mm on the print bed and is 148mm tall

Supports needed?

No supports required!

Scalability

This one should scale upwards well.  You can probably scale it down, too, but you might need to shrink the insert a touch more than the main body to maintain a good fit, especially since forcing vase mode parts together is a recipe for broken prints!

Print Orientation

Both parts print base-down, as you'd expect in vase mode!

File location

You'll find this one on Dropbox at 677 Correlation Vase

Link to dropbox post: https://www.patreon.com/posts/31697592

Further Thoughts 

It had been a while since I last worked with vase mode assemblies, and I'd forgotten how much fun they are.  Complicated, but fun :)

Happy printing!

xoxo

Sven.