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Definitely not competitive with an experienced operator on a real IBM 029 keypunch machine
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I had to determine the actual height of the trip point experimentally
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The switch must sit flat on a 120 °C platform, withstand being poked with a 220 °C nozzle, repel ABS, and trip with better than 0.1 mm repeatability.
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They don’t get too hot after an hour’s worth of printing
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On the other paw, it’s not a monster dead weight,
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The last time around the red one must have been closer to hand
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So here’s a data point: a thoroughly non-stock Thing-O-Matic laying down ABS at 80 mm/s!
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More pressure on the filament was in order.
The Smell of Molten Projects in the Morning 