Difference between revisions of "Plastic recycling"
From Fixme.ch
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| Tube | | Tube | ||
| − | | Part where the material will flow trough. Which material should we use ? (Aluminium/ (Stainless) steel | + | | Part where the material will flow trough. Which material should we use ? (Aluminium/ (Stainless) steel) ? |
| + | Also we will have to be able to dig holes to put the temp sensors inside. | ||
| Needed (20mm internal diameter) | | Needed (20mm internal diameter) | ||
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| Heating element | | Heating element | ||
| − | | Nichrome wire ? Ceramic heaters ? Quite cheap on ebay | + | | Nichrome wire ? Ceramic heaters ? Quite cheap on ebay. |
| − | | | + | This will be controlled by a thermostat (when the tx is above a defined point we shut it down). |
| + | |||
| + | Find a way to attach this (high-temp resistant tape ?) and isolate from the outside. | ||
| + | | Bought 10ft of G28 nichrome wire. | ||
|- | |- | ||
| Thermometers | | Thermometers | ||
Revision as of 12:18, 13 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.
Contents
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
| Part Name | Description | State |
|---|---|---|
| Tube | Part where the material will flow trough. Which material should we use ? (Aluminium/ (Stainless) steel) ?
Also we will have to be able to dig holes to put the temp sensors inside. |
Needed (20mm internal diameter) |
| Auger | Screw pushing the material | Just bought one of those on Ebay |
| Motor | Makes stuff move | Needed |
| Heating element | Nichrome wire ? Ceramic heaters ? Quite cheap on ebay.
This will be controlled by a thermostat (when the tx is above a defined point we shut it down). Find a way to attach this (high-temp resistant tape ?) and isolate from the outside. |
Bought 10ft of G28 nichrome wire. |
| Thermometers | Get the internal temperature in different places of the tube (rear, middle and nose for example). | Needed |
| Extrusion nozzle | Transforms the heated plastic into a regular filament suitable for the printer. | Needed |
| Cooling system | "From liquid to solid in a trice !". Air/water/oil ? | Needed |
Resources
Extruders
I'm guessing we should build something in between - not too simple but not too expensive either.
Misc
- Color filament
- Filament recycling detailed research paper (noskill)
- Broyeuse extrudeuse domestique (noskill)
Schedule
Why do we even have this section?
