FuseBox

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Revision as of 16:42, 19 May 2015 by AlexY (talk | contribs) (Development)
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FuseBox

Release status: working

IMAG0199.jpg
Description
An affordable aluminum-framed CoreXY printer.
License
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CAD Models
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FuseBox is a cheap CoreXY 3D printer that uses an aluminum extrusion frame.

Goal

To design an affordable, RepRappable 3D printer using CoreXY kinematics that offers high speed and quality.

Features

  • Aluminum structure based on Misumi 1515 extrusions and printed brackets
  • Uses a stacked variant of CoreXY that eliminates belt crossing
  • Total materials cost under $350
  • 210x160x200mm build area
  • Capable of 0.5mm layer height and 100 mm/s printing
  • Mostly RepRappable parts and easily hackable/upgradeable
  • Provision for direct and Bowden extruder setups (Bowden currently preferred due to frame rigidity issues)
  • Low moving mass—all motors stationary except extruder motor in direct-drive version
  • Portable—all hardware and electronics (except for filament spool) are integrated within the frame
  • No specialized tools or equipment necessary for assembly

Bill of Materials

Development

Version 1.0

Initial variant. Uses a non-intersecting CoreXY design to eliminate belt crossing issues.

Issues

  • Z-axis issues—slight wobble and linear bearing binding
  • Slight rigidity issues caused by weak corner joints
  • Extruder grip issues leading to inconsistent extrusion
  • Untidy wiring

Todo

  • Endstop integration (possibly with inductive z-probe)
  • Cooling fan addition to improve bridging and top speed for small parts
  • Bowden option for lower moving mass (will retain direct extruder for flexible materials)
  • Diagonal aluminum braces on sides
  • Reduce clearances for additional build area


Version 1.1

Extruder carriage and fan duct

Changes'

  • New compact extruder design with more solid hot end mount and fan duct addition
  • Bowden extruder carriage designed; cold end still in development
  • 608 bearing idler replaced by a 625 idler
  • XY-gantry made more compact, resulting in ~18mm increase in maximum z-axis height
  • Z axis changes: bar spacing reduced, additional reinforcement for z-nut crosspiece

Issues

  • Slight z-wobble
  • Rigidity

Todo

  • Additional bracing
  • Endstop inregration

Video

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Gallery