3-D Printers for Libraries by Jason Griffey

By Jason Griffey

As the maker circulate maintains to develop and three-D printers turn into more cost-effective, an increasing staff of hobbyists is eager to discover this new know-how. within the customary culture of introducing new applied sciences, many libraries are contemplating procuring a 3-D printer. Jason Griffey, an early fanatic of 3D printing, has researched and noticeable numerous platforms first hand on the shopper Electronics convey. during this document he introduces readers to the 3D printing industry, masking such subject matters as:

  • How fused deposition modeling (FDM) printing work
  • Basic terminology resembling construct plate, spool, nozzle scorching finish, direct extruder, and Bowden extruder
  • Plastics used, reminiscent of ABS, PLA, and others
  • Descriptions, cost levels, and filament specifications for 3-D printers from MakerBot, Printrbot, Solidoodle, and different manufacturers
  • Suggested employees abilities for appearing uncomplicated upkeep tasks

  • Where to discover either ready-to-use designs and the...
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    Example text

    This is, I think, not a bad thing, but you should be aware of the complexity of the program. The last of the free tools I’d like to suggest taking a look at is OpenSCAD, an open-source CAD editor. It is also a professional tool, but where Blender’s strength is in the artistic and creative, OpenSCAD’s strength is in the mechanical and engineering aspects of 3-D modeling. If you want to model a turbine impeller or a structural support, OpenSCAD is likely your tool. Much like Blender, however, it is definitively a professional tool and requires serious research and effort to get into.

    The chapter also covers in brief several other less common plastics. The substrate for FDM printers is almost exclusively some form of thermoplastic that is delivered in an extruded wire-like form on a spool and is usually called “filament” in the generic. 75 mm and 3 mm, and a specific diameter is called for by the printhead being used for the printer in question. 75 mm diameter filament won’t be able to use 3 mm without retrofitting the hardware for the difference, and vice versa. 75 mm size is slightly more commonly used and is the filament diameter used by the most popular manufacturer of FDM printers, MakerBot Industries.

    You start with a digital model in STL format. You’ve either created it yourself using one of the software packages described below or downloaded it from a website; either way, you have an STL that you’d like to print. You take that file and open it in a plating and slicing program, like MakerWare, Repetier-Host, ReplicatorG, or Pronterface. That program will let you see how the object sits on the build platform and manipulate it to some degree (scale it up or down, rotate it for a better fit). You will then choose a number of different settings for slicing, things like layer height, infill, and extrusion temperature.

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