⬢T8 Torx key
⬢T10 Torx key (T10 Torx screwdriver)
⬢2.5 mm Allen key
⬢Needle-nose pliers for cutting zip ties
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- Original Prusa XL Single-Tool to Dual-Head Upgrade
- 4. Nextruder upgrade
4. Nextruder upgrade
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- Original Prusa XL Single-Tool to Dual-Head Upgrade
- 1. Introduction
- 2. Printer preparing
- 3. Nextruder disassembly
- 4. Nextruder upgrade
- 1. Tools necessary for this chapter
- 2. Dock disassembly: parts preparation
- 3. Dock disassembly: cable bundle
- 4. Dock disassembly
- 5. New dock assembly: parts preparation
- 6. New dock assembly: inserting the nut
- 7. New dock assembly: metal dock
- 8. New dock assembly: upper screw
- 9. New dock assembly: lower screw
- 10. New dock assembly: cable support
- 11. New dock assembly: cable support
- 12. New dock aseembly: PTFE tube
- 13. New dock assembly: parts preparation
- 14. New dock assembly: cable bundle
- 15. New dock assembly: cable bundle securing
- 16. New dock assembly: nozzle seal
- 17. Nextruder disassembly: cable bundle
- 18. Nextruder disassembly: Nextruder body
- 19. Nextruder disassembly: heatsink screw
- 20. Grub screw relocate
- 21. Nextruder assembly: parts preparation
- 22. Tool-changer cable connecting
- 23. Fan-shield assembly
- 24. Tool-changer assembly
- 25. Tool-changer securing
- 26. Tool-changer connecting
- 27. Tool-changer connecting
- 28. Haribo
- 29. Good job!
- 5. ToolChanger assembly
- 6. Nextruder & accessories assembly
- 7. First run
- Manual changelog (Single-Tool to Dual-Head Upgrade)
4. Nextruder upgrade
Relevant for:
Last updated a month ago Difficulty
Difficult Steps
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⬢For the following steps, please prepare:
⬢Old Nextruder assembly (1x)
While cutting the zip-ties, be careful about the black cable bundle!
⬢On an xl-dock-cable-router, cut the zip-ties.
⬢Pull out the PTFE tube from the xl-dock-cable-router.
⬢Using a T10 Torx screwdriver, unscrew two M3x8rT screws. Do not throw them away!
⬢Using a T10 Torx key, unscrew the upper M3x10cT screw from the xl-dock-cable-router. Keep the screw for later use.
⬢Using a T10 Torx key, unscrew the lower M3x10cT screw from the xl-dock-cable-router. The screw will fall out from the lower hole. Keep the screw for later use.
⬢Pull out the dock-cable-router-single-tool_adapter from the xl-dock-cable-router.
⬢Remove the M3x10 screw from the dock-cable-router-single-tool-adapter. Keep the screw for later use.
⬢For the following steps, please prepare:
⬢Xl-dock-cable-router (1x)
⬢Parking tool (1x)
⬢M3nS nut (1x)
Take on from the Nozzle Seal Assembly bag.
⬢M3nN nut (2x)
⬢M3x14 (1x)
⬢M3x12bT screws (2x) you removed in the previous steps
⬢M3x8rT (2x) you removed in the previous steps
⬢Insert the M3nS nut into the hole in the new xl-dock-cable-router.
Take the new Xl-dock-cable-router from the upgrade.
⬢Push the nut into the xl-dock-cable-router using a 2.5mm Allen key.
⬢Insert the M3x14 screw into the middle hole in the parking tool as described in the picture.
⬢Insert the parking tool with the screw into the new xl-dock-cable-router.
Double-check the screw. It's there? Proceed to the next step.
⬢Insert the M3x12bT screw into the plastic cutout.
⬢Tighten the screw with a T10 Torx key.
⬢Insert the M3x12bT screw into the lower hole.
The screw has to be fully inserted into the xl-dock-cable-router.
⬢Push the screw into the xl-dock-cable-router with a T10 Torx key.
⬢Tighten the screw with the T10 Torx key.
⬢From the back side of the xl-dock-cable-router:
⬢Locate two holes for the nuts.
⬢Insert two M3nN nuts into the holes.
⬢Prepare the cable support next to the xl-dock-cable-router.
⬢From the front side of the xl-dock-cable-router:
⬢Insert the cable support into the xl-dock-cable-router as described in the picture.
Check that the cable support is correctly inserted as shown.
⬢Secure the cable support with two M3x8rT screws using a T10 Torx screwdriver.
⬢Locate a hole for the PTFE tube in the xl-dock-cable-router.
Push the PTFE tube through slowly and in a controlled, otherwise you may pinch or tangle it.
⬢Gently insert the PTFE tube into the cable bundle through the hole.
⬢The PTFE tube has to look like this.
Starting in May 2024, you may receive a gray nozzle seal. The assembly and functionality remain identical to the red one.
⬢For the following steps, please prepare:
⬢Zip-ties (2x)
⬢Nozzle seal (1x)
Slide the spring over the M3x30 screw, taking care not to let it fall off.
⬢Locate the cable bundle cutout on a side of the xl-dock-cable-router
⬢Insert the cable bundle into the cutout.
⬢From the back side of the xl-dock-cable-router:
⬢Wrap the zip-ties around the dock and tighten it in the designated place.
⬢Cut the both excess of the zip ties.
⬢Locate the hole for the nozzle seal.
⬢Insert the nozzle seal (with the spring) into the hole.
⬢Secure the nozzle seal with a 2.5 mm Allen key. Do not over-tighten, a few turns are enough for now.
Height calibration will be done later after finishing the dock assembly.
⬢From the front side of the Nextruder, using a T10 Torx screwdriver untighten two screws to release the cable support.
⬢Press the Festo fittings and pull out the PTFE tube.
⬢Press the secure pin and remove the Nextruder cable.
⬢From the right side of the Nextruder, using a T10 Torx screwdriver unscrew two M3x20rT screws. Do not throw them away!
⬢From the left side of the Nextruder, unscrew two screws using a 2.5 mm Allen key.
⬢Pull out the Nextruder body from the Nextruder.
The heatsink fan is still connected, be gentle about the cables!
⬢Gently move the heatsink fan aside.
⬢With a 2.5 mm Allen key, remove the M3x10 screw from the lower hole. Leave the hole empty.
⬢Put the heatsink fan back in place.
⬢Insert two M3x20rT screws back into the fan holes and tighten them using a T10 Torx screwdriver.
Don't pinch any cables!
⬢Hold the Nextruder as described to prevent the nozzle from falling out of the heatsink after loosening the grub screw.
⬢Locate the grub screw in the extruder.
⬢Using a T8 Torx key, relocate the grub screw from the upper hole to the lower hole. Tighten the screw gently!
The grub screw is for the nozzle release.
Make sure, that the Nozzle is not touching the fan-nozzle part.
⬢For the following steps, please prepare:
⬢Tool-changer (1x)
⬢Tool-changer cable (1x)
⬢XL-tc-hotend-fan-shield (1x)
⬢M3x30 screw (1x)
⬢M3x8rT screw (2x)
⬢M3x8bT screws (2x)
⬢Connect the tool-changer cable with the tool-changer.
⬢Insert two M3x8bT screws into the holes in the fan-shield.
⬢Locate two holes for the screws on the bottom side of the tool-changer.
⬢Attach the fan-shield and secure both M3x8bT screws using a T10 Torx screwdriver.
⬢Look at the graphic of the Nextruder.
The first picture shows, how it looks between the heatsink fan and the heatsink. The second photo shows a different angle.
⬢Locate the space between two M3nS spacers (long silver M3 nuts).
⬢Insert the tool-changer cable through two nuts to the back of the Nextruder.
Be careful of cables!
⬢From the Nextruder's print fan side:
The tool-changer cable has not to be pinched anywhere!
⬢Attach the tool-changer to the Nextruder.
⬢Secure the tool-changer with two M3x8rT screws using a T10 Torx screwdriver.
⬢From the Nextruder's heatsink fan side:
⬢Insert the M3x30 screw into the lower hole and tighten it using a 2.5 mm Allen key.
⬢Open the plastic cover by pulling out the bottom corner.
⬢Open the plastic cover.
⬢Connect the tool-changer cable to the designated connector.
⬢Close the plastic cover. Do not pinch any cables!
⬢Eat ten gummy bears.
Did you know that gummy bears were first created by a German candy maker named Hans Riegel in the 1920s.
⬢Well done! Nextruder and the cable bundle are prepared for the next steps. Let's go to the next chapter: 5. ToolChanger assembly
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