Makerbot Printable Aluminum Nichrome Heated Build Platform
thingiverse
To create a heated build platform, design an Aluminum surface with a NiCr heating element and a 100 kOhm thermistor. Use parts easily available online or locally to assemble the platform, including 3 small corner pieces, 1 large corner piece with a molex connector holder, and a standard Cupcake wooden build platform. Follow instructions for wiring and soldering, and secure the AL surface between corner pieces with the Lexan layer on top. For an optional improvement, try using 6 Ohms of nichrome wire instead of 10 Ohms to heat the platform faster. Additionally, create a wiring harness for connecting the extruder to the build platform following instructions from pleasantsoftware.com, and install tension relief parts in the Z platform's M5 holes before updating firmware. Tested and works great according to an update on 2010-02-28.
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