Summary

This is From Plurk
https://www.plurk.com/coin/faq

The Original Picture
PlurkCoin

Develop Process Blog (Chinese)

PS: If You don't want to Grind Your 3D Printed Part, you can choose the tolerance version
radius of tolerance is 0.2mm

Print Settings

Printer Brand:

MakerBot

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>MakerBot Replicator (5th Generation)</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Yes</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>0.25mm</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>10%</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>200%Scales<br>shells : 2</p></div>

Plurk Coin