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Introduction

Please note: This guide is based upon using two 80mm spindle mounts and an 80mm spindle. The required mounts, and number of them, will depend on your choice of spindle.

  1. In the pursuit of a sturdier machine, Rat Rig updated the Z plate allowing for a stiffer spindle mount, the Rat Rig spindle mount! Carefully identify your Z plate layout:
    • In the pursuit of a sturdier machine, Rat Rig updated the Z plate allowing for a stiffer spindle mount, the Rat Rig spindle mount!

    • Carefully identify your Z plate layout:

    • Z Plate V1.0 - compatible only with the Openbuilds spindle mount

    • Z Plate V1.1 - compatible only with the Rat Rig spindle mount

    • Follow the next steps and assemble the spindle mount

  2. 2x OpenBuilds Style Spindle Mount - 80mm
    • 2x OpenBuilds Style Spindle Mount - 80mm

    • 8x 90 Degree Corner Connector

    • 4x M5x20 Cap Head Screw - Low Profile

    • 8x M5x8 Button Head Screw

    • 8x M5x10 Button Head Screw

  3. OpenBuilds Style Spindle Mount - 80mm M5x20 Cap Head Screw - Low Profile
    • OpenBuilds Style Spindle Mount - 80mm

    • M5x20 Cap Head Screw - Low Profile

    • Insert an M5x20 screw through each hole in the spindle mount front and secure it into the spindle mount body

    • Do not fully fasten the M5x20 screws at this point. They will be used to hold the spindle in place later in the assembly

  4. 90 Degree Corner Connector M5x8 Button Head Screw Insert an M5x8 screw through each 90 degree corner connector and fasten fully into the spindle mount
    • 90 Degree Corner Connector

    • M5x8 Button Head Screw

    • Insert an M5x8 screw through each 90 degree corner connector and fasten fully into the spindle mount

  5. Spindle mount assembly from the previous step 90 Degree Corner Connector M5x8 Button Head Screw
    • Spindle mount assembly from the previous step

    • 90 Degree Corner Connector

    • M5x8 Button Head Screw

    • Insert an M5x8 screw through each 90 degree corner connector and fasten fully into the spindle mount

  6. Spindle Mount Assembly Align the spindle mount with the M5 threaded holes on the Z-axis M5x10 Button Head Screw
    • Spindle Mount Assembly

    • Align the spindle mount with the M5 threaded holes on the Z-axis

    • M5x10 Button Head Screw

    • Insert an M5x10 screw through each 90 degree corner connector and tighten into the threads on the Z-axis

    • Check that the spindle mount is flush and square with the Z-axis plate as shown

  7. M5x10 Button Head Screw Insert an M5x10 screw through each 90 degree corner connector and tighten into the threads on the Z-axis
    • M5x10 Button Head Screw

    • Insert an M5x10 screw through each 90 degree corner connector and tighten into the threads on the Z-axis

  8. Repeat the instructions in Steps 5 & 6 to install the top spindle mount Repeat the instructions in Steps 5 & 6 to install the top spindle mount
    • Repeat the instructions in Steps 5 & 6 to install the top spindle mount

  9. 80mm Spindle Insert the spindle into the mounts as shown M5x20 Cap Head Screw - Low Profile
    • 80mm Spindle

    • Insert the spindle into the mounts as shown

    • M5x20 Cap Head Screw - Low Profile

    • Tighten the M5x20 screws to secure the spindle in to the mounts

    • Follow the next steps and assemble the spindle mount.

  10. Rat Rig 80mm Spindle Mount
    • Rat Rig 80mm Spindle Mount

    • 4x M6x70 Cap Head Screw

    • 4x M6 Square nut

    • 4x M8x30 Low Profile Cap Head Screw

    • 2x M8x12 Low Profile Cap Head Screw

    • 12x M8x22 Cap Head Screw

  11. Rat Rig Spindle Mount - 80mm M8x30 Low Profile Cap Head Screw M8x12 Low Profile Cap Head Screw
    • Rat Rig Spindle Mount - 80mm

    • M8x30 Low Profile Cap Head Screw

    • M8x12 Low Profile Cap Head Screw

    • Insert the screws through each hole in the spindle mount and secure it into the spindle mount body

  12. Assembly from the previous step M6x70 Cap Head Screws Square nut M6
    • Assembly from the previous step

    • M6x70 Cap Head Screws

    • Square nut M6

    • Do not fully fasten the M6x70 screws at this point. They will be used to hold the spindle in place later in the assembly

  13. Spindle mount assembly M8x22 Cap Head Screws
    • Spindle mount assembly

    • M8x22 Cap Head Screws

    • Place the screws in the designated holes, they will be tightened on the next step.

  14. Spindle Mount Assembly Mount the Spindle mount assembly on to the Z-Axis Tighten the M8x22 screws
    • Spindle Mount Assembly

    • Mount the Spindle mount assembly on to the Z-Axis

    • Tighten the M8x22 screws

  15. Repeat the instructions in Steps 5 to install the top spindle mount Repeat the instructions in Steps 5 to install the top spindle mount
    • Repeat the instructions in Steps 5 to install the top spindle mount

  16. 80mm Spindle Insert the spindle into the mounts as shown Tighten the M6x70 screws to secure the spindle in to the mounts
    • 80mm Spindle

    • Insert the spindle into the mounts as shown

    • Tighten the M6x70 screws to secure the spindle in to the mounts

  17. When assembling the cooling circuit for your rig with a water-cooled spindle, please take this tip into account.
    • When assembling the cooling circuit for your rig with a water-cooled spindle, please take this tip into account.

    • Allow the liquid hoses to move freely by themselves, do not constrain their movement.

    • Do not insert them into the drag chains, as the constricted pathways and tight bends may potentially result in punctures or leaks, thereby leading to machine malfunction.

Finish Line

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Simon Davie

Member since: 08/05/2021

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