Summary

8-sided spiral bowl, with four press fit legs.
Bowl body prints flat, as large as your printer base will allow.
Four legs printed separately, then press fit into place under the bowl body.

180mm diameter - could be bigger, but depends on the printer bed.

Print Settings

Printer:

3D Stuffmaker Prusa Explorer

                                            <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>.3</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>20%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>PLA - flexible enough for the bowl to shape as required by the legs</p></div>

How I Designed This

Designed and then trialled with 3Doodler

            <div><p>I have seen a wood trivet made with a spiral cut, which is flat until you move the lever up to convert it into a bowl. I wondered if this could be done with 3D printing.</p><p>I sketched out my design, then I trialled the concept with a 3Doodler 3D pen, and it seemed to work.</p><p>Finally, I checked out Thingiverse for spirals, and there are all sorts of spiral creating tools and customizers available. This is based on a spiral from one of the customizers.</p></div>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/42/e5/29/02/f5/DSC_2591.jpg"></p>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/76/b6/bc/17/d2/DSC_2590.jpg"></p>

Custom Section

Try different legs with this bowl - two types of curved legs are available at:

http://www.thingiverse.com/thing:1985638 - Curved Legs Mk1
and
http://www.thingiverse.com/thing:1985645 - Curved Legs Mk2

The different shapes to the legs will alter the shape of the bowl !

8-sided spiral bowl mk1