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PCB Heater (Diy Joule heating)
i want reduce the area of the heat bed to 5 cm x 5 cm can you help me
I love this comment.
Please, don't comment unless you actually know what you're talking about. What you've said here is complete garbage.In reality, the corners aren't much of a problem. They will get slightly warmer, but not by much. This is mostly because there's more copper being heated at the corners than along the straight tracks.
Imagine the tiny electrons driving in their electron cars, metaphorically speaking, along the straight runs, then they hit a turn. Not one of those spiraling turn you see on the freeway, but like those indy car race track 90° turns. Well since electrons don't really slow down for turns, the 90° turn takes a beating. DC is more harsh than AC or PWM, because the tiny electrons are going balls to the walls all the time, unlike AC or PWM which crosses the X-axis giving the copper time to rest every cycle time.
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