Wednesday, August 06, 2008
Extruder alternatives
At Nophead's suggestion I've started a page here on improvements and alternatives in the construction of the polymer extruder.
The first couple of things I've added are a direct drive, which eliminates the need for the flexible coupling:
And a high-temperature heater design using Ian's idea of fire cement that will outperform JB-Weld-bonded ones:
That also uses Zach's thermocouple driver board, rather than a thermistor. This will go higher in temperature, and also gives a linear output. I've also added the code to the Single Arduino firmware to support the thermocouple.
The first couple of things I've added are a direct drive, which eliminates the need for the flexible coupling:
And a high-temperature heater design using Ian's idea of fire cement that will outperform JB-Weld-bonded ones:
That also uses Zach's thermocouple driver board, rather than a thermistor. This will go higher in temperature, and also gives a linear output. I've also added the code to the Single Arduino firmware to support the thermocouple.
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That's looking very nice, Adrian. Has there been any further trouble with that clamp for the PTFE thermal break?
I'm just using a single self-tapping screw to enhance the clamp, and that seems to be quite adequate for PLA and CAPA.
Vik :v)
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Vik :v)
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