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this is a easy heater core that will get you up and operational from readily available materials for under $1US per core.
hookup wire 30-31gauge coated nicrome wire kapton tape soldder preferably high temp 1/4" OD copper tube furnace cement TOOLS file sciors tooth pick lighter
cut approximatively 1" of copper tube i use the edge of the file. !!!warning!!! if you crush the tube you will have to restart!!! cut about 300MM of nicrome wire or ...
fold the exposed nichrome in to a U shape than thread the lead around and through the U wrap silver solder arround the twisted lead as shown below melt the solder with a lighter not iron ...
with kapton tape wrap the leads together as shown fold the nichrome loosely into fourths than fold it like a letter 3 times and this will be close to an inch long
squeeze some furnace cement out onto a paper plate of similar surface the goal is to work the furnace cement in between all the nichrome wire so work it in it doesn't matter what it looks like at ...
take the bundle from the last step and add more cement to it gently press it inside the copper tube use the toothpick to fill any voids cleanup ...
you NEED anti seize compound for this or it WILL get stuck in the core coat the heater in anti seize than insert it as you would a ...
after 20+ hours of printing the core is fine i think this is a rather robust design the major con it that it takes 50 to 10 min ...
General Public License
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