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After about eight years and a similar failure last year, this came as no surprise: It’s a W5W “parking light” in the same fixture as the melty halogen high-beam bulbs (used as daytime running lights at half power), so it gets toasted on those occasions when we drive somewhere. The adhesive holding the LED strip…
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The Z axis motor drives a four-start leadscrew that moves the Z stage and the thingomatic.xml file specifies 200 step/mm = 0.05 mm/step.
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So a super stock TOM can print upwards of 50 mm/s on non-critical parts, but something around 30 mm/s would work better should you care about surface finish.
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Overall, the thickness now lies within 0.05 mm of the 0.33 mm average.
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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,
The Smell of Molten Projects in the Morning 