This bracket allows you to remove the 40mm fan and heatsink from the extruder and mount the fan above the stepper motor.
It also provides strain relief to the cables going to the extruder.
It has been tested with extruder temperatures up to 245'C and the extruder top block remains cool to the touch.
Moving the heatsink and fan away from the end of the extruder allows better access when loading filaments and also reduces fan noise.
Remove fan and heatsink.
Screw the extruders top block to the stepper using 2 x 20mm M3 screws.
Remove the top two M4 screws on the top right X axis linear block.
.Attach the bracket to the J-Frame using the two M4 screws that go back into the Linear Block.
Mount the fan and guard to the the bracket with two M3 screws and nuts so that the fan blows downwards
Use two small cable ties to fix the extruders cable harness to the bracket to provide strain relief.