FuseBox2R CoreXY 3D Printer
thingiverse
## Update: FuseBox2R v1.1 files available on Github, featuring reworked gantry for improved rigidity and belt path. Partially complete build guide added.  # FuseBox2/FuseBox2R --- ### Github repo: https://github.com/alexyu132/fusebox2 - Latest files, BOM, instructions, and more. ##### Update 7/27/18: STLs and files now exclusively on Github. ##### Update 3/20/18: Modified extruder compatible with flexible filaments, tested at 25mm/s with TPU.  An affordable CoreXY printer based on the original FuseBox, with materials costing between $300-400 depending on hotend and electronics choices. #### FuseBox2R Improves upon the original FuseBox2 by replacing gantry rods with a single MGN12 rail and MGN12C carriage. Advantages include 30% lower moving weight, quieter movement, easier access to carriage components, and modular cooling duct. Upgrading from clone rail costs ~$15-20, while building from scratch adds $5-10. ### Videos FuseBox2R v1.1 @ 250mm/s: https://youtu.be/t1YAJrRtNjg 170mm/s printing: https://youtu.be/dm6vGjRgSQ8 Marlin 2 speed test: https://www.youtube.com/watch?v=aUQ9sjp_YzY ### Specifications and Features * Rigid aluminum extrusion frame (2020 top, sides, and bottom) * Non-crossing CoreXY belt path * Build area: 210x200x210mm * Size: 390x340x412mm * MK2 or MK3 PCB heatbed with 3-point leveling * Strong part cooling blower (4020s) * E3D V6 or Lite6 + 40mm cooling fan and Bowden extruder * Recommended electronics: 24v + 32-bit  ### Improvements over original FuseBox * Slightly more compact design * Larger build area * 2020 frame for increased rigidity * Improved belt tensioning and idler design * Screw-clamped bearing and rod mounts * Proper belt idlers to eliminate rubbing * (Optional) Extrusions joined via tapped ends + screws instead of corner brackets * Lowered part count with integrated y-rod mounts * Vertical gantry for easier hotend installation/removal and better cooling * Improved endstop mounting and adjustability * Robust electronics mounting with display, IEC switch/fuseholder, and PSU flip
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