Triangle Labs Dragon Drop In Hot End

prusaprinters

<h3>&nbsp;</h3><h3>Triangle Labs Dragon Hot End</h3><h4>Justification:</h4><p>The Triangle Labs Dragon is a direct replacement for the E3Dv6 Hot End. &nbsp;The Dragon is mechanically and thermally superior to the E3Dv6 in the following areas:</p><ol><li>Mechanical loads are transferred from the Heat Block to the Heat Exchanger via 4 stainless steel hollow tubes. &nbsp;This allows the Heat Break wall thickness to be reduced and therefore reduces heat creep into the cold part of the Hot End.</li><li>Filament path is via a single metal tube all the way to the top of the heat exchanger. &nbsp;This insures the filament, during retraction, is fully cooled prior to entering the very short PTFE tube. &nbsp;This completely eliminates the heat blob at the end of the retracted filament and subsequent jams on filament reload.</li></ol><figure class="image image_resized image-style-align-right" style="width:29.26%;"><img src="https://media.prusaprinters.org/media/prints/57716/rich_content/a7d0d5c9-fd8f-49de-9be3-cbf4e19d524b/img_3609.jpg#%7B%22uuid%22%3A%224f030534-9890-4a89-af7c-e463ced7327e%22%2C%22w%22%3A1063%2C%22h%22%3A1515%7D"></figure><h4>Options:</h4><p>The Dragon Hot End can be dropped into the most printers that are currently using a E3Dv6 hot end or 100% clone.&nbsp;</p><p>Optionally the Groove Mount top may be removed and the Dragon installed on a plate using 4 screws provided with the Hot End.</p><p>Finally the Prusa <i>extruder-cover</i> can be modified to prevent Dragon rotation during nozzle changes. &nbsp;This is accomplished by adding a flat boss to the top portion of the Prusa <i>extruder-cover</i> that engages with two of the Heat Exchanger structural posts. &nbsp;This permits one hand nozzle changes without the necessity of a wrench to prevent Hot End rotation. &nbsp;The change is only to the extruder-cover which is easily replaced during Hot End replacement. &nbsp;Air flow disruption is minor and has no effect on the cold end cooling.</p><h4>Print Settings:</h4><figure class="table"><table><tbody><tr><td>Filament</td><td>PTEG</td></tr><tr><td>Layer Height</td><td>0.2mm</td></tr><tr><td>Infill</td><td>30% (100% at added Boss)*</td></tr></tbody></table></figure><p>*If you are using a slicer that does not allow infill to be increased on a local basis, increase infill to 50% overall.</p><h4>Assembly:</h4><p>Follow Prusa instructions for removing the removing/replacing hot ends:</p><p><a href="https://help.prusa3d.com/en/guide/how-to-replace-a-hotend-mk3s_161575">https://help.prusa3d.com/en/guide/how-to-replace-a-hotend-mk3s_161575</a></p><p><strong>NOTE:</strong> It is not necessary to remove the Heater and Thermistor from the control board since we will reuse them on the Dragon. &nbsp;</p><p>If you are replacing the Prusa <i>extruder-cover</i> with <i>Extruder Cover - Dragon</i> contained herein, the extruder-cover will need to be completely removed rather than just loosening. &nbsp;In this cast reassemble with <i>Extruder Cover - Dragon</i> instead. &nbsp;Make sure to align the Dragon with the longer portion of the heat block pointing to the back of the printer.</p>