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Joshua Vasquez edited this page May 18, 2020 · 19 revisions

This is the OLD OUT-OF-DATE WIKI! Please see the new wiki from now on.

Versions

Jubilee has two stable versions. V1 was the original design, released on Thingiverse on Sept 9, 2019. V2 is an updated version of the design, released on January 15, 2020 at about the same price point.

Important Note: Several wiki hyperlinks point directly to part files, such as STLs, etc. As of Jan 15, 2020, those files will directly point to V2 files, not V1 files. (This is a drawback of Github wikis, as they cannot be easily versioned and paired with versions of the native repository.)

V2-only Features

  • 409mm of horizontal tool rack space, capable of holding 4 default extruder tools
  • Increased Y dimension to accommodate bulkier tools and their fan shrouds.
  • Increased Z dimension for a total of 300x300x300 build space, increased from 300x300x190mm
  • Easier to assemble than V1 with some design simplifications.
  • Marginally cheaper than V1 with a new V2 Shopping List
  • Detailed Space Specifications for adding custom tools presented in this Tool Interface Diagram
  • For a play-by-play view of V2 vs V1, see the changelog file.

Common Features to both platforms:

Mechanical Motion System Design

  • Designed such that the Z-axis can be adjusted to your liking with no changes to the XY frame or toolchanging setup.
  • Core-XY layout for high-speed printing. Rapids of between 20000mm/min and 30000 mm/min depending on XY stepper motors and heatsinking options.
  • Flush-Form CoreXY Belt Pattern. Upper and lower belts are laid out directly on top of each other, and belts only travel perpendicular to the frame. Belt-tensioning is done conveniently with two set-screws that adjust the motor locations along slots.
  • Designed with Exact-Constraint machine-design principles
  • Kinematically coupled bed plate
  • autotramming with 3-point bed-leveling (courtesy of the Duet)
  • Fabricatable. Almost all fabricated parts are 3D printable. Printed parts are intentionally kept simple and minimize the use of support material. (Exceptions: the bed plate, crossbar, and toolchanger lock must be machined. See notes in the BOM for getting these parts made for cheap.)
  • Metric fasteners everywhere.
  • Documented with a comprehensive BOM and set of assembly instructions.

Tool-Changing

  • Automatic Toolchanging System compatible with E3D tool plates
  • Sensored, torque-based locking system will lock down tool plates with a constant locking torque.

3D Printing

  • Stellar print quality with direct-drive extruders. Jubilee can compete with systems at the $5K price range.
  • Multicolor Printing possible without the need for a prime tower made possible by firmware-driven purge and wipe commands between tool changes. (This feature requires quite a bit of tuning to get working.)
  • Slicer-agnostic. All the complexity of juggling tools is handled at the GCode firmware script level. Slicers need only change to a new tool by invoking a T0, T1, etc. command.

Extensibility

  • User Extensible! Jubilee can accommodate custom tools and custom bed plates for specialized 3D-printing and uses beyond 3D printing. (See the Extending section)

Testing

  • Cycle-tested. Jubilee has performed thousands of toolchanges flawlessly.

Pricing

  • both Jubilee V1 and V2 frames cost ~$1540. The default extruder costs ~$200 each. We encourage community development for a wider spread of tools at different price points.

Legal

  • Completely Open-Source with a CC-BY license. Make use of the Jubilee design in ways that suit you. (STLs, STEPs, and original Solidworks assemblies are included.)
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