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Best way to clean the extruder nozzle of a 3D printer

From Isaac Budmen:

1. Heat the nozzle to 200C
2. Run Nylon filament through the extruder
3. With Nylon in the nozzle, reduce the temperature to 135C, and once there let it sit for a minute
4. Slowly but firmly work the filament out of the top of the extruder


This has worked very well for me a couple of times. Here is how the filament looks like when I take it out of the extruder (repeat steps 1-4 until it comes out clean):


Converting a sketch or a library from Arduino IDE 0023 to Arduino 1.0

  • instead of including wiring.h, WProgram.h, WConstants.h and pins_arduino.h, you only need Arduino.h

  • Wire.send() is now Wire.write(), Wire.receive() is now Wire.read()

    • If you get error messages like "call of overloaded ‘write(int)’ is ambiguous", you probably need to add "(byte)" before a constant argument, eg: Wire.write((byte)0x00);

  • It is possible to use conditional statements to write code that is compatible with older and newer versions, eg:
    #if ARDUINO >= 100
    #include "Arduino.h"
    #else
    #include "WProgram.h"
    #endif

  • More complete list and additional information:


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