Voron TempFluct

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.

This results in P~4W (= 250W/30/2) (half of the power of one of the resistors flows through that area to the heat bed surface).

delta T = 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)