Here's a rough prototype of the nozzle that I printed this morning. Sorry it took so long to get something done. The extruder motor fried about the time we last communicated so the machine was offline for about a week. I fashioned the hose tip out of an aluminum rivet collar, but we may need to use a wider tip to allow more air flow. Let me know what other sources for barbed tube connector you would recommend. The ABS nozzle fits snuggly on the aluminum lens holder so I don’t think you’ll need any other type of fastener.
I am going to tweak a few other items and then try printing it again. The Makerbot needs a good adjustment – the output is a little off and not as clean as I would like. I’m guessing the Z-Platform needs to be leveled to correct some of the sloppiness in the extruding.
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