Summary

Wrench for Praxis cycle M30 bottom bracket. For cups with 48 mm outer diameter and 12 grooves.

Yet to be printed and tested. Will update later with photos.

UPDATE:
Printed and friend reporting it fits. Added modifier file (http://slic3r.org/blog/modifier-meshes) to save some filament. Updated source file including modifier.

Print Settings

Printer Brand:

RepRap

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Prusa i3 plus original kit</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>200 um</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>50 % Prusa3D Slic3r Cubic</p></div></p>

Praxis M30 BB tool