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Re: Slow heating up on MK3 dual power heat bed:S

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ianmcmill
The heatbed has 1.9 ohm resistance. 0.3 more than they say in the datasheet.
Get a better heater. Compared to spec, you're heated bed is producing up to 25% less heat than it's suppose to, and nearly 50% the heat other heated beds (1-1.2 ohm) produce. The Alumnium core acts as a giant heat sink. This works for you when you want even heat for your entire bed...but bad when you're already struggling to get it to temperature let alone maintain it.

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