Thursday, February 18, 2010

Extruder nozzle design

So here's the basic nozzle design- the drawing isn't exact but you get the idea. It's a stainless tube with a stainless stop washer welded to it and a machined brass nozzle. The O ring should help seal the nozzle to the stainless tube. I plan on using a load resistor to heat the nozzle and this is held in place using a small circlip (if this doesn't work I'll probably go the nichrome wire route.) The nozzle is held onto the stainless tube using small set screws that sit in a machined groove. Time will tell if this all works out....

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