Summary

I tried to slice your uke head stl file with Slic3r. It was not watertight, turned out that the faces were reversed, (they were inside out) I used sketchup 16 to reverse the faces. [right click on inside out face; choose "Reverse Faces". Presto! it is now manifest and watertight!

Print Settings

Printer Brand:

Printrbot

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Simple Black</p></div></p>                                                                                <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>.24mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>42%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>Slic3r 1.2.9 with 42% 3d hex pattern infill makes this very very strong and light in PLA</p></div>

ukulele_manche_haut_1cm-Adam_fixed