Voron TempFluct
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The thermal conductivity of aluminium is lambda=220W/m/K The max distance of the resistors is 70 mm I estimate the area A[mm^2]=70*10mm^2, through which the power of the load-resitor passes I estimate the distance from the middle of the resistor to the resistor itself l=35mm At 110° ~ 30% of the 750W Heatbed, which was installed before was sufficient. -> P~4W = 250W/30/2 (half of the power of one of the resistors flows through that area to the heat bed surface. 4*35*1000/220/700 K ~ 1K
I would assume, that my thermal cameras resolution is not sufficient to detect such small variations in the temperature over the bed. Will give it a try in the next few weeks. (Beginning of 2026)