Summary

A yo-yo that works well (V2 Scale by 25.4)
Extra parts:
Bearing .5 in outer diameter .25 Inner diameter .18 width( width is not a big deal)
http://www.mcmaster.com/#standard-ball-and-roller-bearings/=126lbwz

Rod: 3/4 in long 8/32 thread .175 width
(what i could find) http://www.mcmaster.com/#90322a622/=126lf3o

If you make one pleases comment with issues :D

Print Settings

Printer Brand:

Printrbot

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>Printrbot Plus</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>Yes</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>100</p></div></p>                                                        <br>                        <p class="detail-setting notes"><strong>Notes: </strong>                    </p><div><p>the more infill they better it will work<br>Print with a raft to keep the yo-yo to stick to build plate </p></div>