Test 2 with Iglidur i150-PF filament

prusaprinters

<p>This is test 2 and a follow up from: <a href="https://www.prusaprinters.org/prints/48764-test-1with-iglidur-i150-pf-filament">https://www.prusaprinters.org/prints/48764-test-1with-iglidur-i150-pf-filament</a></p> <p>Changes made to test 1 are:</p> <ol> <li>I did a cold pull with PLA to clean the nozzle (was clean)</li> <li>3 layers of glue with drying in between on an heated bed.</li> <li>Changed extrusion temperature to 235C for the others than first layer.</li> <li>Minimum travel after retraction: changed from 1 to 2 mm.</li> <li>Changed extrusion multiplier from 0.95 to 0.98</li> </ol> <p>My observations are these:</p> <ol> <li>stringing and Oozing is less than in test 1</li> <li>Print sticks very good to the print bed (too good...)</li> <li>Still warping upwards of the sharp gear tips (at the beginning and the end).</li> <li>String on the filament tip after unloading (but less)</li> <li>Small holes in the draft shield (?)</li> </ol> <p>I received an e mail from Niklas Eutebach from IGUS with recommendations. See below his mail. I will test this in test number 3.</p> <p>Hi Bas,</p> <p>thanks for your message.<br/> Based on the screenshots out of the slicer, my assessment is as follows:<br/> • speeds and cooling looks fine<br/> • with a 0,6 mm nozzle, in my experience the extrusion temperature can be lowered below the recommendations. I've printed at 225-230 °C. This will also aid with stringing. Also lower the initial layer temp (235-240 °C), this might help with too much adhesion.<br/> • for cooling, the fan setting can be raised, also printing multiple parts at once helps a single part to cool down more and keep its shape.<br/> • Depending on the filament's age and storing conditions, it might be necessary to dry the material to get the best result. Dry at about 65 °C for at least 4 hrs. in a hot air oven or vacuum dryer.<br/> I hope this helps, if there are further problems please let me know.</p> <p>Mit freundlichen Grüßen / Best Regards</p> <p>Niklas Eutebach M. Eng.<br/> Entwicklungsingenieur Additive Fertigung<br/> Development Engineer Additive Manufacturing<br/> igus® GmbH</p>