Ender 3 Rear Right Lid Remix
thingiverse
Used OpenSCAD to import the original right case lid, adding a 4010 blower fan near the SKR V1.3 extruder driver, which generates extreme heat inside the enclosure. The blower fan directs exhausted air toward the rear, not up toward the heated bed. Adequate ventilation is provided by this single fan, making it unnecessary to install additional fans in the enclosure. Referring to FerociousDesigns' 4010 Blower Fan Mockup is optional; however, commenting out that line is recommended if you choose not to build the STL file. The original design included two fans, but one fan proved sufficient for proper ventilation. A WINSINN fan matching Creality part cooling fan dimensions was used in this design. If desired, a MOSFET trigger switch can be added to control the fan using Marlin, as described in Jupa Creations' Bigtreetech SKR V1.3 guide 2019. The define for USE_CONTROLLER_FAN should be uncommented and CONTROLLER_FAN_PIN changed to P1_28 if the X_MAX connector is chosen. Increasing RMS current settings for Trinamic 2208 drivers from defaults in Marlin was not necessary; instead, using 580ma for X,Y,Z and 650ma for E0 worked perfectly.
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