Bicycle thru-axle hub measuring stick

prusaprinters

<p>I'm a member of the <a href="https://probma.org/">Pro bike mechanics association (PBMA)</a> and recently attended one of their tech workshops where several bike companies gave tech info on their stuff and how to work on it. One of the cool things that <a href="https://dtswiss.com/">DT Swiss</a> handed out was a measuring stick for checking the width of a thru-axle hub. (see two of them in the top of the second photo) I thought the design was brilliant, so made my own version that can be 3D printed.</p> <p>I've got two versions, with the first available in several different sizes:</p> <ul> <li><p>Hub measuring stick</p> <ul> <li>148mm long version which covers Boost and non-Boost hubs<ul> <li>157mm long version which covers the above and 150/157mm SuperBoost</li> <li>177mm long version which covers the above and 170/177mm fat bike hubs</li> <li>197mm long version which covers the above and 190/197mm fat bike hubs</li> </ul> </li> </ul> </li> <li><p>Boost/Non-Boost measuring stick<br/> This one covers 100/110mm front hubs as well as 142/148mm rear hubs.<br/> <strong>How to use this measuring stick</strong></p> <p>With the Boost/Non-Boost version, there are arrows which correspond to 100, 110, 142 and 148mm. The side marked with a "F" and "R" are the non-Boost 100 and 142mm sizes, and the side marked "BOOST" are the Boost 110mm and 148mm sizes. Pass the stick through the hub and see which arrow lines up with the end of the axle, and you'll know which one you're dealing with. Note that it's the sides of the arrow that you're lining up - see the photos!</p> <p>For the standard version, there are text indications which may or may not print well. The cutouts start with the "F" and correspond to the 100-110mm range for front hubs. (non-Boost and Boost) Next is the "R" for rear hubs, with 142-148mm for non-Boost and Boost rear hubs, a small 2mm gap to the 150-157mm Super Boost width, then the final two cutouts correspond to 170-177mm (narrower fat bike hubs) and 190-197mm (widest fat bike hubs)</p> </li> </ul> <p><strong>Hub diameter checker</strong></p> <p>On the short end of the stick there are three feelers for 12mm, 15mm and 20mm thru-axle hubs. Just insert the short end into the hub and see which one fits.</p> <p>See Print Settings for options for making the markings more visible.</p> <h3>Print instructions</h3><h3>Category: Hand Tools Summary</h3> <p>I'm a member of the <a href="https://probma.org/">Pro bike mechanics association (PBMA)</a> and recently attended one of their tech workshops where several bike companies gave tech info on their stuff and how to work on it. One of the cool things that <a href="https://dtswiss.com/">DT Swiss</a> handed out was a measuring stick for checking the width of a thru-axle hub. (see two of them in the top of the second photo) I thought the design was brilliant, so made my own version that can be 3D printed.</p> <p>I've got two versions, with the first available in several different sizes:</p> <ul> <li><p>Hub measuring stick</p> <ul> <li>148mm long version which covers Boost and non-Boost hubs<ul> <li>157mm long version which covers the above and 150/157mm SuperBoost</li> <li>177mm long version which covers the above and 170/177mm fat bike hubs</li> <li>197mm long version which covers the above and 190/197mm fat bike hubs</li> </ul> </li> </ul> </li> <li><p>Boost/Non-Boost measuring stick<br/> This one covers 100/110mm front hubs as well as 142/148mm rear hubs.<br/> <strong>How to use this measuring stick</strong></p> <p>With the Boost/Non-Boost version, there are arrows which correspond to 100, 110, 142 and 148mm. The side marked with a "F" and "R" are the non-Boost 100 and 142mm sizes, and the side marked "BOOST" are the Boost 110mm and 148mm sizes. Pass the stick through the hub and see which arrow lines up with the end of the axle, and you'll know which one you're dealing with. Note that it's the sides of the arrow that you're lining up - see the photos!</p> <p>For the standard version, there are text indications which may or may not print well. The cutouts start with the "F" and correspond to the 100-110mm range for front hubs. (non-Boost and Boost) Next is the "R" for rear hubs, with 142-148mm for non-Boost and Boost rear hubs, a small 2mm gap to the 150-157mm Super Boost width, then the final two cutouts correspond to 170-177mm (narrower fat bike hubs) and 190-197mm (widest fat bike hubs)</p> </li> </ul> <p><strong>Hub diameter checker</strong></p> <p>On the short end of the stick there are three feelers for 12mm, 15mm and 20mm thru-axle hubs. Just insert the short end into the hub and see which one fits.</p> <p>See Print Settings for options for making the markings more visible.</p> <h3> Print Settings</h3> <p><strong>Printer Brand:</strong> Prusa</p> <p><strong>Printer:</strong> i3 MK3</p> <p><strong>Rafts:</strong> No</p> <p><strong>Supports:</strong> No</p> <p><strong>Resolution:</strong> 0.2mm</p> <p><strong>Infill:</strong> 20%</p> <p><strong>Filament:</strong> Prusa PLA silver<br/> <strong>Notes:</strong></p> <p>Two ways to print this - one is doing mutli-filament so you get color changes and it's easy to read, but that's time consuming and may require you to edit the gcode.</p> <p>Or, you can print with a single color, and then use a permanent marker like a Sharpie to color the face a contasting color. You can see I've got examples of both.</p>