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What This Project Is
This project adapts the Bambu Lab X1/X1C hotend for use with the Voron Design StealthBurner printhead. The Bambu hotend delivers performance similar to a Rapido but costs significantly less. This page provides a verified bill of materials with current buy links, plus build tips from the original project and community discussions.
The original design by MrTeliP uses a hexagonal press-fit interface. A variant by Rincewind76 incorporates heat-set inserts for a more robust, tool-free hotend swap. Both designs allow you to use a readily available, high-performance hotend with your StealthBurner.
What You’ll Need to Buy
| # | Component | Spec | Qty | Buy Link | Notes |
|---|---|---|---|---|---|
| 1 | Bambu Lab Complete Hotend Assembly | X1/X1C, 0.4mm hardened steel nozzle | 1 | 3D Universe — Bambu Hotend | Includes heater, thermistor, and cooling fan. Not compatible with X1E. 0.6mm and 0.8mm hardened steel variants are also available for abrasive filaments. |
| 2 | 5015 Centrifugal Blower Fan | 24V DC, dual ball bearing, 6000 RPM | 1 | West3D — GDSTime 5015 | This is the part-cooling blower. Must be 24V. Using a 12V fan on a 24V printer will burn it out. |
| 3 | 4010 Axial Fan | 24V DC, dual ball bearing | 1 | Fabreeko — HoneyBadger 4010 | This is the hotend cooling fan. The HoneyBadger Performance variant is recommended. GDSTime 4010 24V axial fans are a good alternative if Fabreeko is out of stock. |
| 4 | NEMA14 Pancake Stepper Motor | LDO-36STH20-1004AHG, 36mm round pancake | 1 | West3D — LDO NEMA14 | Required for the Clockwork 2 (CW2) extruder. Do not substitute a NEMA17 pancake; the CW2 body is designed for the 36mm NEMA14 form factor. |
| 5 | M3×5×4mm Brass Knurled Heat-Set Inserts | M3 thread, 5mm OD, 4mm length | 22 | Adafruit — M3 Inserts | These are for the Rincewind76 variant. Adafruit’s product 4255 is 4mm OD, slightly undersized. For an exact 5mm OD match, use Vector3D or KB-3D inserts. |
| 6 | M3 SHCS Screws (assorted) | M3×8, ×12, ×14, ×16, ×25 | 1 kit | Amazon — M3 Screw Kit | A full Voron StealthBurner fastener kit from West3D or KB-3D is a better option if you only need toolhead hardware. |
| 7 | 2×11mm Self-Tapping Screws | 2mm diameter, 11mm length | 2 | Slice Engineering — Self-Tapping Screws | These secure the hotend into the aluminum heatsink radiator. Check if your Bambu hotend includes them before ordering separately. |
| 8 | SK6812 RGBW LED | 5V, individually addressable | 3 | West3D — SK6812 RGBW | Must be SK6812 RGBW (not RGB). WS2812B LEDs lack the white channel used by Klipper’s StealthBurner LED macros. |
| 9 | Hartk StealthBurner Toolhead PCB | 2-piece, LDO version | 1 | West3D — Hartk PCB | Optional but strongly recommended for simpler wiring. Choose the 24V TAP version if using a 24V probe, or 5V TAP for a 5V probe. |
Estimated total cost: $70-120
You will also need various M3 screws, which are typically included in a Voron fastener kit. If you’re building the Rincewind76 variant, you’ll need a soldering iron with a heat-set insert tip.
Where to Get the Files
- STL files (MrTeliP original): Printables - Voron Stealthburner for Bambu Lab X1C/X1 Hotend
- STL files (Rincewind76 heat-insert variant): Printables - Voron Stealthburner Printhead for Bambu X1C/X1 Hotend
Build Notes
- Hotend Fan Airflow: The adapter has a large open area below the heatsink. This allows the hotend fan to blow air down over the heater block and nozzle instead of through the heatsink fins, which can reduce cooling efficiency.
- Thermistor Configuration: The Bambu hotend uses an ATC Semitec 104GT-2 thermistor. Configure this in your
printer.cfgfile. If you’re swapping from a Revo hotend, no otherprinter.cfgchanges are typically needed. - Robust Hotend Retention: The Rincewind76 variant (Printables model 322091) adds heat inserts. This provides a more robust hotend retention mechanism and allows for tool-free hotend swaps. Consider this variant if you frequently change nozzles.
- Hotend Mounting Screws: The hotend mounts with one M3×16 SHCS and two 2×11mm self-tapping screws. The M3 screw threads directly into plastic, so do not overtighten it. The self-tapping screws go into the aluminum radiator fins; again, avoid over-torquing.
- Tools Required: You’ll need a 3D printer capable of printing ABS or ASA (PETG is not recommended for toolhead parts). For the Rincewind76 variant, a soldering iron with a heat-set insert tip is necessary. You’ll also need H2.0 and H2.5 hex keys, a small Phillips screwdriver, and potentially a crimping tool for JST-XH/PH connectors if you’re not using the Hartk PCB.
About This Page
Some Assembly Mandatory builds supply guides for popular maker projects. We research and verify every component link so you can focus on building, not shopping. This guide was researched and compiled with AI assistance and reviewed by our editorial team. Found a dead link or a better component? Let us know.