Ender 3 v3 SE Motherboard Cooing Optimization
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A fix to the poor stock motherboard cooling design. Helpful if using 0.9 Stepper Motors.
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This modification was born from the need for better motherboard cooling due to the swap to 0.9deg Stepper Motors. Using these motors at a high acceleration causes the stepper drivers on the motherboard to overheat and shutdown momentarily causing layer shifts in the prints.
CAUTION - This is irreversible. Please take care in cutting your printer base.
The available STL file is used both as a template for marking your cut and a spacer to set your fan on so that only cool and fresh air enters the printer chassis. The chamfered side of the spacer faces away from the fan
OPTIONAL:
A 60mm fan guard is used to cover the hole. This is simply Hot Glued into place. I recommend pre-warming the areas of the steel where the hot glue will make contact. This can be done with a torch. It only need to be WARM TO THE TOUCH.