A nozzle brush with integrated servo to move it out of the way when not in use.

For aditional info and .step file check the github repo: https://github.com/keyquesttech/Ratrig-Vcore-3-3.1-servo-nozzle-brush.git

Some 3d printed parts need support.

Parts needed:

• 20kg_servo_mount.stl This is the part that holds the servo.
  • Servo_mount_long.stl If you have a ratrig bigger than 200mm or enough space and wanna make instalation easier use this file.
• Brush_holder.stl This is the part that holds the brush
• Spacer.stl The height of the spacer can/needs to be customized to modify the nozzle contact with the brush, this can be done in slicer (no cad skils needed).
• Arm_Left_servo.stl The "left"/"right" in the name indicates where the arm mounts to the servo, so use this file if you plan to mount the servo to the right.
• Arm_Right_servo.stl The "left"/"right" in the name indicates where the arm mounts to the servo, so use this file if you plan to mount the servo to the left.

Electronics:

• 1x: 270 degree 20kg servo

Hardware:

• 1x: Brass brush This one is pre cut but you can use any other brass brush and cut it yourself, in fact that may be better since you can cut it to fit perfectly.

Fasteners:

• 2x: Cap Head Screw M6x12 Used to mount the servo to the frame. You may have some leftovers from the ones included in the RatRig kit.
• 2x: 3030 series M6 T nut Used to mount the servo to the frame. You may have some leftovers from the ones included in the RatRig kit.
• 6x: M4 heatset insert The hole for the inserts is 5.6mm in diameter and 7.5mm in lenght. A 6mm long insert is recommended.
• 6x: M4 screws The lenght of these depends on the size of spacer you use, but between 25 and 35mm should be enough. You will also need 2 6mm long screws to mount the servo.
• 2x: M3x6 screw Used to secure the brush arm to the servo.