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HS-Bot-Project

Building a better E3D-toolchanger.

HS-Bot - 2020 extrusion motion system (3D-printer) designed from the ground up to work with E3D Tool-changer system

Goal of this Project

The main goal of this project is to create a "cheap" diy solution to implement the e3d tool-changing system in a way that it "just works" and improve on some questionable design choices by E3D at the same time. In contrast to other diy (or cheap chinese) 3d-printers this project is not like a toy but much rather like a professional tool. Using duet3ds software features in combination with multiple sensors the printer "just works" without failed prints. The printer does (almost) everything on its own.

Hardware Features Overview

  • Tool-changer capabilities
  • Core-XY
  • Linear rails on all axes
  • Two or three independent Z axis lead-screws for auto bed tramming (real auto bed leveling)
  • 5V and 24V Power supply (using a relay)
  • Heated aluminium printbed (silicone heater mat)
  • Heatbed is mounted using kinematic coupling (like the tools). This avoids warping the bed when it is heated.
  • Enclosure
  • Rigid cube-like frame
  • Size: 440mm, 440mm, 450mm (l, w, h)
  • Build volume: 220mm x 300mm

Work in Progress

Altough HS-Bot is now fully working, there is still a lot to be done.
A list of things to be done:

  • XY motor mount
  • XY connector
  • XY idler mount
  • Tripple (independent) lead screw Z-axis mount
  • E3D TC Coupler mount redesign
  • Idle tool holder spacer redesign
  • Z-axis redesign

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