Difference between revisions of "Plastic recycling"

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(Created page for filament extruder project)
 
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* Recycle failed/old prints and extruded plastic
 
* Recycle failed/old prints and extruded plastic
  
* Recycle other plastics, such as PET bottles, etc
+
* Recycle other plastics, such as PET bottles (caps), etc
 
* Experiment with new colors and materials
 
* Experiment with new colors and materials
  
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* Ventilation preferable for ABS
 
* Ventilation preferable for ABS
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== Parts needed ==
 +
* Tube (or a rubber stator if we choose the PCP option)
 +
* Screw to move the material trough, like an Archimedes screw (where can we find that ?) but preferably a [https://en.wikipedia.org/wiki/Progressive_cavity_pump Progressive cavity pump] to have a constant flow, low shearing and perfect for viscous material transport).
 +
* Pretty High torque motor
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* Heating element (nichrome wires ?)
 +
* Extrusion nozzle
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* Cooling system (air/water/oil ?)
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== Resources ==
 
== Resources ==

Revision as of 10:10, 5 November 2013

Description

Build an extruder to recycle and create new filament cheaply for Fixme's Ultimaker and other people's printers. An extruder is constructed from essentially two parts: a feeding mechanism, and a heater - chopped plastic is fed from a container into the feeding mechanism, which then pushes the plastic slowly through the heater to create the filament.


Goal

  • Recycle failed/old prints and extruded plastic
  • Recycle other plastics, such as PET bottles (caps), etc
  • Experiment with new colors and materials

Obstacles

  • Get a filament of repeatable thickness
  • More complex = more difficult
  • Ventilation preferable for ABS

Parts needed

  • Tube (or a rubber stator if we choose the PCP option)
  • Screw to move the material trough, like an Archimedes screw (where can we find that ?) but preferably a Progressive cavity pump to have a constant flow, low shearing and perfect for viscous material transport).
  • Pretty High torque motor
  • Heating element (nichrome wires ?)
  • Extrusion nozzle
  • Cooling system (air/water/oil ?)


Resources

Extruders

I'm guessing we should build something in between - not too simple but not too expensive either.

Misc

Schedule

Why do we even have this section?

Participants