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Entombing that mess with a squirt of hot melt glue
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Moral of the story: don’t mess around with anything inside the box while it’s printing!
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It seems to me that a device using a flammable gas should not abrade its gas hose, but what do I know?
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The final result is truly ugly.
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I have no reason to believe new ones will last any longer.
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I simply drilled out the bosses to fit a pair of 4-40 screws
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I affixed the two ends with solvent glue, then epoxied a brass tube around them to stiffen it up.
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The trick is to generate the pulses using the ATmega’s hardware, rather than program instructions
The Smell of Molten Projects in the Morning 