H2D chamber temperature at start of print
My filament profile has the chamber temperature set to 52°C. The build plate temperature is set to 107°C. I start the print.
The chamber will heat up to 52° and the build plate gets to 107°C eventually. While the build plate is heating up, it supplies more heat to the chamber. This leads to the chamber temperature increasing.
The chamber temperature increases past 52°C to 53°C, 54°C…while the printer is doing its startup routine.
Since the print is just starting and the build plate increased the chamber temperature 2°C past the target temperature, the printer sits idle, waiting to cool down.
The whole time its waiting to cool down, the build plate is at a whopping 107°, preventing the chamber temperature from cooling down. So, the printer continues to sit idle, and while doing so, the temperature of the build plate causes the chamber temp to climb higher. I’ve seen it reach 60°C from this.
This is a recurring issue with the H2D. The printer will sit hot at the start of the print and there is no internal processing to handle this issue. Dozens of times in the past year of ownership has my printer sat idly doing this.
I’ve noticed that there is internal processing to handle this issue WHEN the filament profile has the chamber temperature set to 0°C. In this case, the printer will temporarily turn off the build plate temperature so the chamber temp goes down. I believe this would adequately solve this recurring issue if applied to when the filament profile has chamber heater turned on.