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age_45)

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📦 Materials (BOM) – Organized by Category

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All items include direct purchase hyperlinks

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⚠ Note About Links & Purchasing

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Some of the Amazon links are affiliate links, provided only as a reference for part specifications and compatibility.
\nYou are not required to buy from Amazon, and I don’t mind where you purchase the parts from.

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My main goal with this project is to keep it as budget-friendly as possible so more people can build, experiment, and enjoy this toolhead.
\nFeel free to source parts locally, from eBay, Taobao, Bambu Lab, or any trusted supplier, as long as the specifications match.

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⚠Also, pay attention and dont just buy everything on the list, some are duplicated. Just choose what you need ‼

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RX VORON V5– 5015 Toolhead BOM

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🔩 Fasteners & Hardware

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🔌 Tubing & Connectors

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🌀 Cooling Fans 

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         (⚠Pay attention to the voltage according to your toled headboard voltage requirement)

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🎛 Electronics & Boards

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🔥 Heating Assemblies ⚠

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Original Bambu Lab assemblies strongly recommended. DO NOT buy H2D Left – Right is easier to work with.

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🔍 Probes (⚠choose one)

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⚙ Extruder Gears (⚠choose one)

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    New recommendation to buy the

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🌀 Springs

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🧷 Pins, Blades & Switches

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🔥 Hotends (⚠choose the one you need). 

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Match your hotend to your heating assembly. Mixing A1 heating assembly with H2D hotend gives almost no flow improvement.

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🔧 Motors & Wiring

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🟢 One-Stop: All-Original Bambu Lab Parts 

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Purchase directly from Bambu Lab for guaranteed compatibility:

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💡 Pro Tip: Bookmark this list! Double-check compatibility before ordering, especially for heating assemblies and hotends. When in doubt, buy original Bambu Lab parts for best results. 🛠✨

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When using a static filament cut depressor, configure an excluded zone in your slicer according to the depressor’s XY position. 

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⚠ After installing this toolhead, remember to update your slicer settings for retraction and deretraction speeds.

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Also, don’t forget to update the extruder rotation distance and heating assembly sensor type in Klipper to the value below:

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rotation_distance:  4.7830131121165
\nsensor_type: EPCOS 100K B57560G104F    #Must use this for Bambulab sensor type 
\npullup_resistor: 4700             #for ebb36 gen2 use 2200
\nmin_extrude_temp: 0                   #important if you will use my load unload filament macro, keep it 0
\nmax_extrude_only_distance: 300.0       # #important if you will use my load unload macro
\nmax_extrude_cross_section: 10.0

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I have attached a .txt file below with all important Klipper settings and macros for  proper use of this toolhead 

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 💡I’ve noticed that most people tend to comment or share photos only when they run into issues. But this toolhead represents over a year of work, iteration, and improvement to become what it is today.

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So I truly appreciate everyone who takes the time to share photos of their builds — not just problems, but successes too. It really means a lot and helps show what this project can achieve in the real world.

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Thank you for being part of it 🙌

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Enjoy the future of DIY printing!

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Happy printing!

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🔧 Common Issues & Fixes

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1. Extrusion Inconsistency

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Possible causes & checks:

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• Rotation Distance

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• Make sure your rotation_distance is set correctly as specified in the provided .txt file.

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• Sensor Type

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• Verify that the correct sensor type is set correctly as specified in the provided .txt file.

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• Filament Tensioner Adjustment

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• Proper tension is critical.

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• Tighten the screw without filament inserted until you see slight movement, then stop.

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• Too tight → filament deformation

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• Too loose → slipping / under-extrusion

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• Spring Selection

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• You can use different springs, but:

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• If the spring is too soft, it will cause inconsistency at high flow rates.

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• Recommended: ≤ 0.8 mm wire thickness

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• Weak springs = unstable extrusion under speed

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• Filament Sensor (Switch Type)

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• If installed:

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• Enable pull-up resistor in Klipper (^ symbol)

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Example : switch_pin: ^EBB:PD0

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• Without it:

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• You may get false triggers

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• This can unintentionally activate load/unload macros → causing inconsistent extrusion

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2. Heating Assembly Melting mainbody mount

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• If your chamber temperature exceeds 55°C and you printing at nozzle temp over 260c.

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• Use high-temperature materials to print mainbody, such as:

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• PAHT-CF

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• PPS

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• PA12-CF

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• Alternative:

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• Use the hybrid design provided on step&stl:

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• Printed body + CNC/machined high-temp components

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3. Filament Cutter Getting Stuck

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• Do not fully tighten the screw holding the cutter.

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• Leave slight clearance:

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• The spring will handle the pressure.

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• Over-tightening = binding/jamming

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4. Filament Not Fully Clearing After Cut

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• A small piece may remain inside, making hotend swaps difficult.

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Solution:

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• Use the provided cutting macro

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• Make sure to:

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•Properly tune the XY position Align it with your cutter depressor location

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5. Back Cover Hitting the Carriage

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• Some printer carriages are taller than standard.

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Fix:

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• Use the shortened back cover version (if needed)

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Recommendation:

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• If you don’t have clearance issues:

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• Use the standard back cover (more space for cables)

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6. Heat Affecting Probe (Eddy / Microprobe)

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• Excess heat from the hotend can damage or deform your probe.

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Solution:

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• Print and install the probe heat shield included in the model

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7. The thermistor is reading the wrong temperature

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Thermistor Pull-Up Resistor Guidance🌡

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Different toolhead boards may require different pull-up resistor values for accurate temperature readings. This affects how the thermistor signal is interpreted by Klipper or other firmware.
\n   •    Ebb36 1.2: Works correctly with a 4700 Ω pull-up resistor.
\n[pullup_resistor: 4700]

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   •    Ebb36 Gen2 : Requires a 2200 Ω pull-up resistor for correct readings.

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Tip: If the temperature readings seem offset (too high or too low), check the pull-up resistor value first before adjusting any other settings. Using the wrong pull-up resistor can cause misreading by ~30 °C or more, affecting print quality and material behavior.
\n  pullup_resistor: 2200             

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💡 Final Tip

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Most issues here come down to setup precision, not hardware defects.

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Take your time during installation:

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• Follow the documentation carefully

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• Double-check mechanical adjustments

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• Validate your Klipper config before printing

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V4.5.2 Changelog

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V4.5.2 Changelog

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RX TOOLHEAD V5 — Final Stable Version

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V5 is the most stable version of the RX Toolhead so far. I can confidently say this is the final version before moving on to the next project: a possible tool changer version.

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Major Improvements & Features:

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✅ Easier Assembly & Maintenance
\nYou can now fully assemble the toolhead on your desk before installation. After placing it on the carriage, simply secure it with 4 screws and you are ready to start printing.
\nThis design makes troubleshooting much easier without needing to completely disassemble and rebuild the entire toolhead.

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✅ Improved Cable Management
\nThe toolhead board is now integrated into the rear cover, providing a cleaner and more organized cable routing path.

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✅ Unified Design Architecture
\nMerged most components from the A1 Gear version and H2S Gear version, improving:

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✅ 6mm & 9mm Belt Compatibility
\nAdded support for both 6mm and 9mm carriage systems, allowing users to choose their preferred belt size while keeping the same carriage design.

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✅ Precision Improvements

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✅ Stronger Carriage Design
\nRedesigned the carriage to be more robust, allowing you to tension the belt properly without worrying about deformation from excessive pressure.

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✅ Voron Trident R2 Compatibility
\nUpdated the design to support the new Voron Trident R2 platform.

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RX Toolhead V5 represents the result of continuous testing, refinement, and real-world printing experience. A cleaner, stronger, and easier-to-maintain toolhead designed for high-performance builds. 🚀

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