this is a easy heater core  that will get you up and operational from readily available materials for under $1US per core. 

Step 1: Tools and Consumables

hookup wire 
30-31gauge coated nicrome wire 
kapton tape 
soldder preferably high temp 
1/4" OD copper tube 
furnace cement 


tooth pick 

Hey Dude <br> <br>Why not simply use a Vitreous Enamel power resistor such as this one <br> <br>http://uk.farnell.com/vishay-sfernice/rwm04106r80jr15e1/resistor-ww-3w-5-6r8/dp/1109220 <br> <br>? <br> <br>It is commonly used in the Reprap heater block design pioneered by Nophead. <br> <br>Much cleaner and you don't need the cement, nichrome wire etc.
I would have but the time did not allow for shipping. I bought one of the first MK6+ upgrade kits and the heater core broke in the first 15 seconds and I needed the printer the next day for a presentation so I made one with what I had.

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More by max mulholland:Backyard Blacksmith Shop Shed Makerbot MK6+ heater replacement 
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