--- Log opened Thu Dec 09 00:00:56 2021
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05:56 < muurkha> https://birdsite.xanny.family/mattparlmer/status/1468706727843540996#m talks about "the entire FDM printer industry is missing the pivot from prototyping use cases to mass production use cases" and "Subtractive machining of arbitrarily hard metals is within reach"
05:56 < muurkha> "printer demo coming soon, preorders to follow"
06:11 < fenn> "Subtractive machining of arbitrarily hard metals" = ECM? EDM?
06:18 < muurkha> ECM it looks like
07:45 < lsneff> ECM is nothing new
07:56 < docl> A point in its favor? A self rep stack is probably going to involve a lot of substitution of more primitive options for sophisticated ones since they have fewer dependencies
08:06 < fenn> don't remember if i shared this here before http://amosdudley.com/weblog/Experiments-with-Desktop-ECM
08:21 < docl> very cool!
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20:31 < muurkha> .to lsneff ECM is enormously easier in 02021 than it was in 02001, 01981, or 01961
20:31 < saxo> Okay, I'll pass that message along to lsneff
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20:49 < muurkha> fenn: I think we talked about it before, I said he's being naïve to think he can make ECM work without filtration and closed-loop control of the process gap
20:49 < muurkha> but that's just textbooks speaking through me, not actual knowledge
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20:52 < muurkha> read ECM papers from the 01980s, they had multiple racks of equipment devoted to the feedback loop and power supply stuff.  nowadays you can do all that in a GD32
20:55 < muurkha> but being small and cheap doesn't make it optional
20:55 < muurkha> (I mean, the GD32 does need *some* external components)
21:47 < lsneff> huh, relativity space wants to interview me for an internship
21:47 < saxo> lsneff: <muurkha> ECM is enormously easier in 02021 than it was in 02001, 01981, or 01961
21:47 < lsneff> oh, 100%
21:48 < lsneff> I wonder if there’s some path using edm or something else to producing chips with large transistors compared to now, but just manufacturing ASICS instead of CPUs
21:49 < lsneff> for most machinery, an asic would be fine if the chips could be produced quickly and cheaply
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22:33 < cpopell> it's ECM
22:33 < cpopell> I'm like 90% sure I know the guy Matt is hiring for ECM toolchange with his printers
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--- Log closed Fri Dec 10 00:00:56 2021