Raise3D Pro 2 Bowden Tube Replacement Guide

Are you looking to enhance the performance of your Raise3D Pro 2 3D printer? One critical maintenance task you may need to perform is replacing the Bowden tube. This guide will walk you through the step-by-step process of replacing the Bowden tube on your printer, ensuring smooth and optimal printing results.

From identifying signs that indicate a tube replacement to gathering the necessary tools and executing the replacement procedure, this comprehensive article will equip you with the knowledge and skills needed to maintain your printer’s efficiency.

How to Replace Bowden Tube on Raise3D Pro 2 3D Printer

Replacing the Bowden tube on your Raise3D Pro 2 3D printer is a straightforward process. Here are the steps you can follow:

1. Power off the printer to ensure safety during the replacement process.
2. Use a 2.5mm wrench to remove the two screws on the Extruder connecting board.
3. Unplug and disconnect all the wires from the extruder. If any connectors are covered by glue, gently remove the glue using a small flat-head screwdriver.

Now, let’s proceed with the Bowden tube replacement:

1. Remove the other material attached to the nozzle or heating block using a spatula and tweezers.
2. Insert a cleaning rod completely through the hotend to ensure that the tube is clear of any blockages.
3. Screw the new nozzle into the heating block, but do not tighten it completely. Ensure there is a visible gap between the nozzle and the heating block.
4. Hold onto the heating block and tighten the throat tube by rotating the heat sink.

Signs of Bowden tube needing replacement

Identifying signs that your Bowden tube may need replacement is crucial for maintaining optimal 3D printer performance. Here are some indicators to watch out for:

1. Clogging: If the filament gets stuck inside the tube, it’s a sign that the tube or nozzle might be blocked.
2. Inconsistent Extrusion: Uneven filament flow from the nozzle can result in irregular prints. If you notice this issue, consider checking the Bowden tube.
3. Visible Damage: Inspect the tube for any signs of wear, such as melting, tearing, chipping, scratching, or wrinkling. If only the end of the tube is damaged, you can trim it down and continue using it.

Essential Components for Replacing Bowden Tubes in 3D Printers

When replacing the Bowden tube in your 3D printer, it’s crucial to have the right tools and replacement components on hand. Here are some essentials you’ll need:

1. Bowden Tubing: Make sure you have a high-quality PTFE Bowden tube that matches the specifications of your printer. A kit like the PTFE Bowden Tube with Socks Kit from Kingroon includes 1 meter of tubing, along with other useful items.

2. Tube Cutter: A tube cutter is essential for cleanly trimming the Bowden tube to the correct length. This ensures smooth filament flow and prevents clogs.

3. Couplers: You’ll need couplers to connect the Bowden tube to both the extruder and hotend. Look for black and blue couplers that fit your printer’s setup.

4. Silicone Covers: These protective covers help shield the Bowden tube from heat and wear. Having a couple of spare silicone covers is a good idea.

5. Nozzles: While replacing the Bowden tube, consider changing the nozzle as well. Having a few 0.4mm brass nozzles on hand allows you to swap them out if needed.

Replacing the Bowden Tube in Your Raise3D Pro 2 Printer

Replacing the Bowden tube in your Raise3D Pro 2 printer is a straightforward process. Here’s a step-by-step guide to help you:

1. Power Off the Printer:

   • Always begin by turning off your 3D printer to ensure safety.

2. Remove the Old Bowden Tube:

   • Most 3D printers use pneumatic couplers at both ends of the PTFE (polytetrafluoroethylene) tube, near the extruder and the hotend.
   • Press down on the ring of the coupler while gently pulling out the Bowden tube.

3. Measure and Cut the New Tube:

   • If you’re replacing the tube with one of the same length, use the old tube as a guide to cut the new one.
   • Otherwise, measure the required length according to your printer’s specifications.

4. Install the New Bowden Tube:

   • Insert the new tube into the pneumatic couplers at both ends.
   • Ensure a snug fit without any gaps or kinks.

5. Secure the Tube:

   • Reattach any clips or holders that secure the Bowden tube in place.
   • Make sure it’s properly aligned and won’t interfere with other printer components.

6. Calibrate and Test:

   • After replacing the tube, perform any necessary calibration steps according to your printer’s manual.
   • Test the printer by running a simple print job to ensure smooth filament flow through the new Bowden tube.

For more information, you can refer to this detailed article on 3D Printer Bowden Tube (Pros, Cons, and Upgrades).

Replacing the Bowden Tube in Your 3D Printer: Best Practices

When replacing the Bowden tube in your 3D printer, here are some best practices to ensure a smooth process and optimal performance:

1. Tube Quality and Length:

   • Invest in a tube cutter to get nice square ends on your Bowden tube.
   • The stock PTFE tube and compression fittings that come with the printer may not be the best quality. Consider replacing them with higher-quality items like Capricorn tube.
   • Measure your stock tube and add a few inches in length to reduce the angle of curve for the filament feed. While there’s no concrete evidence, it can improve performance.

2. Temperature Considerations:

   • Ensure your hot-end is up to temperature before working on the Bowden tube. Expansion and contraction affect the fit.
   • Unscrew the nozzle roughly one full turn to allow for tube removal.

3. Removing the Tube:

   • Unclamp the Bowden tube by pushing in on the compression fitting and pull it out.
   • Trim the tube off square (or trim the new tube) and insert it firmly into the hot-end until it bottoms out. It must be firmly against the nozzle inside the hot-end.
   • Make sure the Bowden tube is clamped securely in the compression fitting to prevent it from backing out.

4. Nozzle Tightness:

   • Screw the nozzle back in to the proper tightness. This ensures it’s snug against the PTFE tube.
   • Loose nozzles or misaligned/gapped Bowden tubes can lead to issues like clogs due to heat creep or plastic sticking between the tube and the nozzle.

Remember, these tips assume you don’t have a clog and have already cleaned the hot-end and nozzle. If you encounter any issues, consider the alternative method of adding a captive length of PTFE tube inside the hot-end for a more permanent fix

In conclusion, mastering the art of Raise3D Pro 2 Bowden tube replacement is a valuable skill for any 3D printing enthusiast. By recognizing the warning signs of a deteriorating tube, equipping yourself with the right tools, and following the detailed replacement steps, you can ensure that your printer operates at its best. Remember, investing time in periodic maintenance tasks like Bowden tube replacement not only improves print quality but also prolongs the lifespan of your printer.

So, roll up your sleeves, dive into the procedure, and experience the satisfaction of a well-maintained Raise3D Pro 2 3D printer.