Summary

A seemingly impossible joint based on Japanese joinery techniques. Makes an interesting puzzle.

Print Settings

Printer:

XYZ Printing daVinci mini

                                            <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>0.3</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>15%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>PLA filament</p></div>

Post-Printing

This should fit together right off the print bed with no filing. Might be a bit stiff at first but it will soon loosen up. See image for how to put it together. I have included the SketchUp files in case you would like to experiment with this design.

How I Designed This

Designed in SketchUp 2017. Based on the video "Osaka Castle-Otemon Gate's Pillar Splice, Japanese Impossible Joinery (FS Woodworking)" by Vasilis Papadopoulos on YouTube and the accompanying drawings.

Osaka Castle Pillar Splice