Annex Engineering's worm-driven extruder (developed by RentableSocks), offered in a 20:1 variant. The worm drive packs very high reduction into a compact package and drives Bondtech-style dual drive gears. Excellent for pushing filament through high-flow hotends at speed, though the complex gear train requires precise printed parts.

AE

Sherpa Micro

Annex Engineering · $20–35

Printed / DIY Dual Drive

An even more compact version of the Sherpa Mini, designed from the ground up by Anlin and the Annex Engineering team. Same dual-geared hobbed design philosophy but in a smaller package, targeting ultra-lightweight and space-constrained toolheads. Uses a pinion-equipped NEMA14 pancake stepper. Ideal for printers where every gram matters, such as the Voron V0 or other compact builds.

AE

Sherpa Mini

Annex Engineering · $20–35

Printed / DIY Dual Drive

A compact dual-geared hobbed filament extruder designed by Annex Engineering. Uses a 5:1 spur gear ratio with Bondtech-style dual drive gears (RIDGA v2 compatible). Designed to work with any printer in both direct and Bowden configurations. A pinion-equipped NEMA14 pancake stepper is required. One of the most widely adopted community extruders due to its small size, light weight, and proven reliability.

The stock direct-drive extruder integrated into Bambu Lab X1 and P1 series printers. Features dual-drive gears with an integrated stepper motor in a compact, factory-assembled unit. Includes a filament cutter mechanism for AMS (Automatic Material System) compatibility and PTFE-guided filament path. Reliable and well-tuned from the factory, but locked into the Bambu Lab ecosystem with limited aftermarket modification options.

BTT

BTT Nebula (BIQU Nebula)

BigTreeTech (BTT) · $30–50

Commercial Planetary

The BIQU Nebula is BigTreeTech's planetary extruder featuring an 11.25:1 gear ratio, hardened large-diameter dual extrusion gears, and an integrated compact stepper motor (recommended 650mA). At 143g it delivers 6kg+ extrusion force while remaining lightweight for its ratio class. Built-in features include a filament runout sensor, customisable G-code programmable button, and RGB backlight. It uses the same installation hole pattern as the LGX Lite, making it a drop-in compatible choice for Stealthburner, EVA 3, and other LGX Lite-pattern toolheads. Klipper config: rotation_distance: 51.75 (drive gear circumference 50.4mm), run_current: 0.65A. Frequently sold bundled with BTT EBB42 CAN bus boards.

BO

Bondtech BMG

Bondtech · $80–100

Commercial Dual Drive

The original Bondtech dual-drive extruder that defined the category. Uses a 3:1 gear ratio with dual hobbed gears that grip filament from both sides. Compatible with NEMA17 steppers. Available in direct-drive and mirrored (for left/right mounting) variants. The BMG design has been widely cloned, making it one of the most influential extruders in the hobby. Still highly capable despite its age.

BO

Bondtech LGX

Bondtech · $120–145

Commercial Dual Drive

Bondtech's flagship Large Gears eXtruder featuring internal dual-drive gears with integrated NEMA17-class stepper motor. The LGX uses large drive gears for better filament grip and reduced filament deformation. Internal gear train is fully enclosed and factory-assembled. Supports 1.75mm filament with a wide range of mounting options. A premium, robust extruder for demanding applications.

Bondtech's highest-ratio extruder combining their large-gear dual-drive system with a 20:1 gear reduction. The extremely high gear ratio delivers exceptional torque, enabling reliable extrusion even with very high-flow hotends and viscous engineering filaments. Uses an integrated stepper motor with a compact form factor. Designed for users pushing the boundaries of volumetric flow rate.

BO

Bondtech LGX Lite

Bondtech · $70–90

Commercial Dual Drive

The lightweight version of the Bondtech LGX, featuring the same large dual-drive gear system but with a smaller integrated stepper motor for reduced weight. Designed for direct-drive toolheads where mass matters. Same Bondtech precision at a lower weight penalty. Popular for Voron and other CoreXY builds where toolhead weight affects print quality at speed.

Community-designed printed mounting adapters for the Bondtech LGX Lite, enabling it to be used on Voron and other toolheads that don't natively support it. The LGX Lite itself is a commercial product with an integrated stepper motor, but many community members have designed printable adapter plates for Stealthburner, EVA, and other platforms. The extruder body is NOT printable — only the mount is.

The original Papilio Belt Extruder replaces traditional metal hobbed gears with two small 6mm GT2 closed-loop timing belts that wrap around the filament from both sides. This dual-belt grip eliminates filament grinding and gear marks. Uses BMG 50T drive gear assembly for reduction with a NEMA14 pancake stepper. Designed with a Sherpa Mini mounting footprint for broad toolhead compatibility. A minimalist, affordable open-source design using common off-the-shelf hardware.

Identical to the Papilio Lite LGX variant but uses HGX clone gears instead of genuine Bondtech LGX Lite gears. The HGX gear set is a widely available, lower-cost alternative that maintains the same two-stage 44:10 / 37:17 reduction and belt-drive mechanism. Same printed parts, same mounting patterns, same performance characteristics — just a more budget-friendly gear source.

CO

Papilio Lite (LGX Gears)

Community (KevinAkaSam) · $15–35

Printed / DIY Belted

The Papilio Lite is the refined successor to the original Papilio. It uses a two-stage gear reduction (44:10 then 37:17, giving ~9.58:1 overall with a 10T motor pulley) with LGX Lite POM gears driving two 6mm GT2 timing belts. The fully enclosed design enables flexible filament printing — a key improvement over the original. Fits both Sherpa Mini and LGX Lite mounting patterns, and is compatible with the Voron Stealthburner. 10g lighter than the original at 130g.

CO

Wristwatch BMG

Community (Tetsu/bythorsthunder) · $15–25

Printed / DIY Dual Drive

An ultra-compact printed extruder inspired by BMG geometry but using a 'wristwatch' style gear train for an extremely slim profile. The 3:1 gear ratio is lower than most competitors but the tiny form factor makes it ideal for toolheads where space is at an absolute premium. Popular in ultra-lightweight and compact toolhead designs.

The extruder portion of E3D's integrated Hemera direct-drive system. Features a 3.5:1 gear ratio with dual-drive constrained filament path, meaning the filament is always guided precisely between the drive gears. The Hemera integrates the extruder and hotend into one unit but the extruder mechanism itself uses a robust gear train with a NEMA17-class integrated motor. Can be converted between direct drive and Bowden.

E3D

E3D Revo Roto

E3D · $115 (standard / Bowden) – $155 (sensored)

Commercial Planetary

E3D's highest-force extruder, built around the Revo ecosystem. A three-stage gearbox — planetary, then spur, then dual-hobb — gives 70N+ of extrusion force at 140g, enough to saturate Revo High Flow nozzles while failing by stalling the motor rather than grinding the filament. Uses a 3D-printed (SLM) metal heatsink and a bi-stable tensioner that fully releases for loading and cold pulls. The sensored version adds filament, fan-speed and heatsink-temperature monitoring plus an action button.

E3D's classic geared extruder featuring a 3:1 gear ratio with a single-sided hobbed gear and spring-loaded idler. One of the first widely available geared extruders. Can be configured for both direct drive and Bowden setups. Compatible with NEMA17 steppers. While now considered dated, the Titan was a landmark product that brought geared extrusion to the mainstream.

JA

Galileo 2 (G2E) — Stealthburner

JaredC01 · $25–50

Printed / DIY Planetary

The Galileo 2 Extruder (G2E) is a drop-in replacement for the Clockwork 2 inside the Voron Stealthburner. Features a 9:1 planetary gear system using a custom 9-tooth sun gear stepper, where the tooth count is evenly divisible by the 3 planet gears for balanced loading. The planetary design delivers significantly more torque than the CW2's spur gear setup, enabling faster extrusion speeds and better handling of high-viscosity filaments. Recommended Klipper rotation_distance: 47.088, run_current: 0.6A (TMC2209).

JA

Galileo 2 SA (Standalone)

JaredC01 · $25–50

Printed / DIY Planetary

The standalone version of the Galileo 2 (G2SA) uses the same 9:1 planetary gear system but in a compact, mountable body compatible with Orbiter 2.0-style or Sherpa Mini-style mounting patterns. This makes it adaptable to a wide range of toolheads beyond Stealthburner, including many community and custom designs. Same 9T custom stepper, same torque, more mounting flexibility.

LDO

Orbiter V2.0

LDO Motors · $65–85

Commercial Planetary

LDO Motors' planetary geared extruder featuring a 7.5:1 gear ratio in an ultra-compact body. Uses a NEMA14 pancake stepper with a planetary gear reduction for high torque in a small package. The Orbiter V2.0 refined the original design with improved gear mesh, better filament path geometry, and a quick-release filament loading lever. One of the most popular lightweight extruders for direct-drive CoreXY builds.

LDO

Orbiter V3.0

LDO Motors · $75–95

Commercial Planetary

The latest iteration of LDO Motors' Orbiter planetary extruder. Builds on the V2.0 with improved gear tooth profiles for smoother operation, reduced noise, and enhanced filament grip. Retains the same 7.5:1 planetary gear ratio and compact form factor. Note: Availability may vary by region — check LDO Motors and authorized resellers for current stock. Requires Manual Verification for exact release status in all markets.

Mellow's version of the Bondtech BMG clone. Functionally identical to the TriangleLab BMG clone with 3:1 dual-drive gears and NEMA17 compatibility. Mellow's manufacturing quality is generally comparable to TriangleLab. Available in both right-hand and left-hand (mirrored) variants. A solid budget option for builders who need dual-drive performance without the Bondtech price tag.

Not an extruder itself, but the most commonly specified motor for printed extruders in the Voron and wider community. The Moons CSE14HRA1L410A (or LDO-36STH20-1004AHG equivalent) is a 36mm round NEMA14 pancake stepper with a 10-tooth pinion gear pre-installed. Required for Clockwork 2, Sherpa Mini, Sherpa Micro, and many other community extruders. When sourcing, ensure the pinion gear tooth count matches your extruder's specification (typically 10T for CW2/Sherpa, 9T for Galileo 2).

TL

TBG Lite (TriangleLab)

TriangleLab · $30–45

Commercial Planetary

TriangleLab's budget planetary geared extruder inspired by the Orbiter design. Features a 7.5:1 planetary gear ratio in a compact, lightweight body with a NEMA14 pancake stepper. Offers similar performance to the Orbiter V2.0 at roughly half the price. Quality is generally decent for a budget option, though gear mesh and motor quality may not match the LDO original.

TriangleLab's integrated extruder + hotend combo: a large dual-drive gear set with adjustable tension idler at an 8.44:1 ratio, driven by an LDO 36STH20-1004AHG pancake stepper, mated directly to an all-metal V6-style hot side (290°C standard, 450°C upgradable) with a 4010 dual-ball-bearing cooling fan. Rated at 4.6kg pushing force on PLA. Supports V6, Volcano, Super Volcano, CHC, and CHC Pro hot-side standards with M6 nozzles. Aimed at bedslinger upgrades (Ender 3, CR-10, Prusa-style, Artillery X1/X2) rather than CoreXY toolheads.

TriangleLab's clone of the Bondtech BMG extruder. Uses the same 3:1 dual-drive gear concept with hobbed gears gripping filament from both sides. TriangleLab is generally considered one of the higher-quality clone manufacturers, and their BMG clone is widely used in budget Voron and Ender builds. Quality is notably better than generic AliExpress BMG clones, though still below genuine Bondtech.

Ultra-budget BMG clones available from various unbranded manufacturers on AliExpress and Amazon. These use the same basic 3:1 dual-drive concept as the Bondtech original but with significantly lower manufacturing tolerances. Gear hardening, hobbed tooth quality, and bearing quality vary wildly between sellers and batches. Functional for basic printing but not recommended for demanding applications or long-term reliability.

A community-developed compact variant of the Clockwork 2 extruder mechanism adapted for the Mini Stealthburner toolhead. Designed primarily for the Voron V0 and other compact printers. Retains the CW2's 5:1 dual-drive gear system but in a smaller overall package to fit the Mini SB form factor.

The official Voron Stealthburner extruder, a dual-geared design with a 5:1 gear ratio using a 50-tooth and 10-tooth spur gear set. Designed specifically for the Stealthburner toolhead and uses a NEMA14 36mm round pancake stepper motor. A proven, reliable workhorse used across thousands of Voron builds. Easy to source with well-documented BOM and assembly instructions.

VD

Voron M4 (Mobius 4)

Voron Design · $15–35

Printed / DIY Dual Drive Bowden

The Voron M4 is a frame-mounted Bowden extruder and the fourth iteration of the Voron Mobius extruder family. It uses a GT2 belt-driven 4:1 reduction with dual Bondtech-style hobbed gears for strong filament grip. Being frame-mounted, it adds zero mass to the toolhead carriage, which is advantageous for high-acceleration motion systems. Uses a 188mm GT2 closed-loop belt, F695 bearings, and a printed 80T gear. Feeds filament via PTFE tube to any Bowden-compatible toolhead.

The CNC-machined aluminum version of the Vz-HextrudORT extruder, manufactured by Mellow. Offers the same 5:1 dual-drive gear system as the printed version but in a precision-machined metal body for improved rigidity, thermal stability, and longevity. The CNC body eliminates printed-part tolerancing issues entirely. Available from various vendors as a complete kit.

VB

Vz-HextrudORT (Printed)

VzBot Community · $20–35

Printed / DIY Dual Drive

The VzBot community's dual-drive extruder designed for the VzBot Vz235 and Vz330 printers but compatible with other platforms. Uses a 5:1 spur gear ratio with Bondtech-style dual drive gears. Features a compact, printable body optimized for high-speed printing on the VzBot platform. Available in both printed and CNC machined versions.

The larger variant of the Vz-HextrudORT, designed around a full NEMA17 stepper motor for increased torque over the standard NEMA14 version. Targets users pushing extremely high flow rates on the VzBot platform. The larger motor provides more holding torque at the cost of additional weight on the toolhead.