--- title: Loading the Galileo Pro Printer description: Loading Filament on the Pro --- [Skip to content](https://www.help.protosthetics.com/galileo/loading-and-unloading-filament-pro#main-content) English Show submenu for translations ![ProtostheticsGalileo Logo](https://www.help.protosthetics.com/hubfs/ProtostheticsGalileo%20Logo.svg) Open main navigation Close main navigation - English Show submenu for translations - [Contact us](https://www.help.protosthetics.com/galileo/contact-us) [Contact us](https://www.help.protosthetics.com/galileo/contact-us?hsLang=en) How can we help you? - There are no suggestions because the search field is empty. 1. [Galileo by Protosthetics](https://www.help.protosthetics.com/galileo?hsLang=en) 2. [Filament & Printing FAQs](https://www.help.protosthetics.com/galileo/filament-printing-faqs?hsLang=en) 3. [Filament Loading & Handling](https://www.help.protosthetics.com/galileo/filament-printing-faqs?hsLang=en#filament-loading-handling) October 19, 2026 # Loading the Galileo Pro Printer ## This guide will provide instructions on how to load filament into your Galileo Pro Printer. ### Here is a Quick Video Guide of the Loading Process: ### Unloading Filament ### 1. Select Change Filament on the main screen and heat the nozzle up to the appropriate temperature: ![download (1)1](https://www.help.protosthetics.com/hs-fs/hubfs/download%20(1)1.png?width=670&height=335&name=download%20(1)1.png)   | Filament | Temperature | | --- | --- | | PETG | 220°C | | TPU | 220°C |   2\. Push down the black rubber guide tube holder on top of the toolhead and pull out the guide tube. ![download (1)2](https://www.help.protosthetics.com/hs-fs/hubfs/download%20(1)2.png?width=670&height=536&name=download%20(1)2.png)   3\. After the toolhead is within 5 degrees of the desired temperature, select "Unload" 4\. Softly Pull the filament out of the tool head. ▫️▫️▫️If the filament feels stuck and is not coming out, follow step Step 1 outlined in [this guide.](https://www.help.protosthetics.com/galileo/how-to-unclog-the-asteroid-toolhead?hsLang=en)   ### Loading/Extruding Filament 1. Cut the end of the filament at a steep angle (~45 degrees) above any ridges. #### Note: Make sure you have a firm grip on the filament. If you let go of the filament, the roll will unspool and could cause a filament tangle ![download (1)3](https://www.help.protosthetics.com/hs-fs/hubfs/download%20(1)3.png?width=640&height=427&name=download%20(1)3.png)   2\. Select Change Filament on the main screen and heat the nozzle up to the appropriate temperature: | Filament | Temperature | | --- | --- | | PETG | 220°C | | TPU | 220°C | #### Note: Push down the black rubber guide tube holder on top of the toolhead and pull out the guide tube if you haven't done so already ![download (1)4](https://www.help.protosthetics.com/hs-fs/hubfs/download%20(1)4.png?width=670&height=536&name=download%20(1)4.png)   3. Insert the spool onto the filament holder so the cut end points over and towards the back of the cabinet. Then thread the filament through the guide tube until 3-4 inches of filament are pulled through the tube. #### Note: Do not insert the filament into the toolhead at this time ![download (1)5](https://www.help.protosthetics.com/hs-fs/hubfs/download%20(1)5.png?width=320&height=314&name=download%20(1)5.png) 4. Set the Green Tension Lever to the correct setting. Always push the filament lever towards the back of the kiosk, then pull it towards yourself the appropriate number of clicks | Filament | Tension | | --- | --- | | PETG | 2 Clicks of Tension | | TPU | 3 Clicks of Tension | #### Note: Also look behind the green tension lever, you'll be able to see open notches. The number of open notches is your tension level. 2 open notches is 2 clicks of tension. ![20260325\_122108 (1)](https://www.help.protosthetics.com/hs-fs/hubfs/20260325_122108%20(1).jpg?width=670&height=430&name=20260325_122108%20(1).jpg) 5. After the toolhead is within 5 degrees of the desired temperature, select "Load" on the printer's screen to start extruding filament, then insert the filament into the top of the toolhead. After you feel the filament being pulled, let the filament go and wait until you see filament extruding from the nozzle. #### Caution! Nozzle will be hot. 6\. If you are swapping filament rolls, and keeping the filament the same, extrude 3 inches of filament and select "Load" on the printer screen to stop extruding filament. Otherwise, continue extruding filament until impurities stop for 6 inches. 7\. Secure the guide tube by pushing it into place. Then clean the nozzle with the maroon scrubbing pad or golden toothbrush. #### You have successfully loaded filament and you are ready to start your next print! 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