Berd-Air Tube Bender (3 mm)

prusaprinters

<p>Tried to build my own "Berd-Air"-style tube. As there are no tube bender available on thingiverse that allowing to bend a 360°- circle, I had to design my own. The procedure of bending is quiet simple:</p> <p>1.Things you need:</p> <ul> <li>aluminium tube (3mm od)</li> <li><p>screws:</p> <ul> <li>1 x M3 x 10 mm<ul> <li>1 x M3 x 20 mm</li> <li>1 x M3 Nut (not necessary)</li> <li>2 x M6 screws (as lever)</li> </ul> </li> </ul> </li> <li><p>drill (I took 1,5 mm)</p> </li> <li>plier</li> <li>and a 3D-printer of course ;-)<ol> <li>Things to print:</li> </ol> </li> </ul> <pre><code>* 1 x U-form * 1 x Retainer * 2 x Wheel big * 1 x Wheel small * Drilling template (the one you like. Template 1 has an angle of 45° to align the drill more easily) </code></pre> <ol> <li>Assembling:</li> </ol> <pre><code>* Clamp the end of the tube with a plier to protect air leake * Mount the Tube bender as shown in the picture. (The large wheel consists of 2 parts to facilitate disassembly at full bend). * Bend the tube </code></pre> <ol> <li><p>Drilling holes</p> <ul> <li>Calculated, the optimal drilling angle should be 18.4 degrees. I have tested this angle and found a problem: At this angle, a lot of air escapes towards the hotend and influences the printing temperature. The best angle so far as a compromise of temperature stability and cooling, I have now found at 45 °.</li> </ul> <p>If you like my design, leave me a like or comment if you have an idea to improve it :)</p> <p>edit:</p> </li> </ol> <ul> <li>added a Retainer with vise mount. Could be a little more difficult to print. </li> </ul> <ul> <li><p>I ordered the pumps in germany from pollin electronics:</p> <ul> <li>12 V version:<br/> <a href="https://www.pollin.de/p/luftpumpe-daypower-lp36-12-12-v-330071">https://www.pollin.de/p/luftpumpe-daypower-lp36-12-12-v-330071</a><ul> <li>24 V version:<br/> <a href="https://www.pollin.de/p/luftpumpe-daypower-lp36-24-24-v-330072">https://www.pollin.de/p/luftpumpe-daypower-lp36-24-24-v-330072</a></li> </ul> </li> </ul> <h3>Print Settings</h3> </li> </ul> <p><strong>Printer:</strong></p> <p>Hypercube Evolution</p> <p><p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div><strong>Supports:</strong></p> <p>No</p> <p><p class="detail-setting resolution"><strong>Resolution: </strong> <div><p>0,2 mm</p></div><strong>Infill:</strong></p> <p>40 %</p> </p></p> Category: 3D Printer Accessories