Simple GT2 Belt Tensioner

prusaprinters

<p>A simple tensioner for a GT2 belt I designed for my Delta printer.</p> <p>This attaches to the belt, and moves with it. Obviously (!?), attach it to the belt at a location which won't go through a pulley or interfere with some other part.</p> <p>Uses a 14mm (or so) M3 screw and nut to bend the belt sideways.</p> <p>NB: Photo is of the prototype. I thought that perhaps the screw might cut into the belt, so I added the "pusher" between the belt and the end of the screw</p> <p>NB: The "pusher" is tapered, so it is much easier to insert between belt and frame one way than the other.</p> <p>[Edit] Slightly enlarged the frame to make it stronger after I broke one.</p> <h3>Print Settings</h3> <p><strong>Printer:</strong></p> <p>ZoneStar D810 delta</p> <p class="detail-setting rafts"><strong>Rafts: </strong> <div><p>No</p></div> <p><strong>Supports:</strong></p> <p>No</p> <p class="detail-setting infill"><strong>Infill: </strong> <div><p>30% +</p></div> <h3>Post-Printing</h3> <p>Make sure the surfaces that press against the belt are clean and smooth.</p> <h3>How I Designed This</h3> <p>Publicly accessible at <a href="https://cad.onshape.com/documents/57527497e4b03ef5be4d3f42/w/490ff02b0971aec85a7da984/e/5d89cfe705ba4107b982ef50">https://cad.onshape.com/documents/57527497e4b03ef5be4d3f42/w/490ff02b0971aec85a7da984/e/5d89cfe705ba4107b982ef50</a></p> </p></p> Category: 3D Printer Parts