Bondtech i3 MK3 BMG Style Geared Extruder

myminifactory

Extruder Assembly for Axis One Machine with Modified Bondtech BMG i3 Housing Bondtech BMG i3 Upgrade Bobblejot Website: bobblejot.com Bobblejot GitHub: github.com/bobblejot Bobblejot Twitter: @bobblejot Bobblejot Patreon: patreon.com/bobblejot Upgrading the Bondtech BMG i3 to my Axis One machine, I realized that modifying the design would make it easier to print and add personal touches. The original housing had too many hex features, so I simplified it by removing most of them. The new design incorporates cutouts for airflow on the front, using the hex designs as a starting point. I replaced the hex nuts with square nuts and threaded inserts, adding additional inserts to secure the assembly. I also modified the cable paths and tie wrap holes for easier printing. Thickening some sections improved print quality, and changing how the front and rear clamp together made it possible to remove the stepper motor without disassembling the entire carriage. The extruder assembly fits any i3 carriage hole, including Prusa's up to the MK3S. Designed versions include: No Filament Sensor (NF) Laser Filament Sensor (LFS) Optical Filament Sensor (OFS) The OFS model requires a Prusa upgrade kit, which can be purchased for £17.49. Filament size: 1.75mm Extruder ESteps: 415.0 Original extruder assembly: Bondtech BMG i3 I hope this modified design is helpful to you! Materials: * Affiliate links provided for the following items: + BMG Thumb Screw (aliexpress.com) + BMG Big Gear + Shaft (aliexpress.com) + BMG Pinion Gear (aliexpress.com) + M3x32mm Steel Pin (aliexpress.com) + Collet Clip (aliexpress.com) + 13Ncm Nema 17 Pancake Motor (aliexpress.com) + Pinda Probe v2 (aliexpress.com) + 5015 Blower (aliexpress.com) + 4010 Blower (aliexpress.com) + E3D V6 (aliexpress.com) Fasteners: * M3 Square Nut (aliexpress.com) * M3 Brass Inserts (aliexpress.com) * Hex Nuts * Threaded Inserts * Cap Heads Note: The Bondtech gears can be replaced with original or clone versions, but supporting the original designers is recommended.