Sunlu Filament Dryer Mod

Disclaimer: Any of the mods performed are your own risk and will most likely void any warranty from the manufacturer. That said, hope this turns out well for you. Cheers.

This mod adds air circulation / convection to improve the dryer's performance. The unmodified dryer was measuring roughly 35c across all three of my units when the configured for 55c. After the mod, I was measure 1 to 1 with the display temp and eventually after a few hours it would reach 55c. The meter's thermal probe was inserted into the top access port and set back roughly 40-50mm on top of a full spool of ASA filament. The humidity in the box at the start of the test was 35% and after 6 hours had reached 12% and over night dropped to 8%.

Please note this mod requires soldering a connector and shunt wire on the control board. Image provided illustrating placement and steps are included below. This mod will turn the fan on/off along with the heat plate. So when the heat plate / box is turned off so