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06. X-Axis Assembly

Written By: Simon Davie (and 2 other contributors)
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Introduction

Please note: All measurements and component counts provided in this guide are based upon building a 300x300 V-Core 3.

If you are building a machine of a different size, please refer to the following list for the linear rail length, 2020 extrusion length, and required number of fasteners:

  • 200x200: 300mm Linear Rail, 322mm 2020 Extrusion, 6x M3x8 Screw & 2020 T-Nuts
  • 300x300: 400mm Linear Rail, 422mm 2020 Extrusion, 8x M3x8 Screw & 2020 T-Nuts
  • 400x400: 500mm Linear Rail, 522mm 2020 Extrusion, 10x M3x8 Screw & 2020 T-Nuts
  • 500x500: 600mm Linear Rail, 622mm 2020 Extrusion, 12x M3x8 Screw & 2020 T-Nuts

  1. 1x xy_joiner_left_3.1 Printed Part

    • 1x xy_joiner_left_3.1 Printed Part

    • 1x xy_joiner_right_3.1 Printed Part

    • 4x 695ZZ Ball Bearing

    • 8x F695ZZ Ball Bearing

    • 12x Mini Precision Shim

    • 8x 6mm Aluminium Spacer

    • 4x M5x55 Cap Head Screw

  2. M5x55 Cap Head Screw xy_joiner_left_3.1 Printed Part Install the following components in the order shown in the image:

    • M5x55 Cap Head Screw

    • xy_joiner_left_3.1 Printed Part

    • Install the following components in the order shown in the image:

    • Mini Precision Shim

    • F695ZZ Ball Bearing (Flange at the top)

    • 695ZZ Ball Bearing

    • F695ZZ Ball Bearing (Flange at the bottom)

    • 6mm Aluminium Spacer

  3. M5x55 Cap Head Screw Assembly from the previous step Install the following components in the order shown in the image:

    • M5x55 Cap Head Screw

    • Assembly from the previous step

    • Install the following components in the order shown in the image:

    • Mini Precision Shim

    • F695ZZ Ball Bearing (Flange at the top)

    • 695ZZ Ball Bearing

    • F695ZZ Ball Bearing (Flange at the bottom)

    • 6mm Aluminium Spacer

  4. M5x55 Cap Head Screw xy_joiner_right_3.1 Printed Part Install the following components in the order shown in the image:

    • M5x55 Cap Head Screw

    • xy_joiner_right_3.1 Printed Part

    • Install the following components in the order shown in the image:

    • Mini Precision Shim

    • F695ZZ Ball Bearing (Flange at the top)

    • 695ZZ Ball Bearing

    • F695ZZ Ball Bearing (Flange at the bottom)

    • 6mm Aluminium Spacer

  5. M5x55 Cap Head Screw Assembly from the previous step Install the following components in the order shown in the image:

    • M5x55 Cap Head Screw

    • Assembly from the previous step

    • Install the following components in the order shown in the image:

    • Mini Precision Shim

    • F695ZZ Ball Bearing (Flange at the top)

    • 695ZZ Ball Bearing

    • F695ZZ Ball Bearing (Flange at the bottom)

    • 6mm Aluminium Spacer

  6. 1x 422mm 2020 Extrusion

    • 1x 422mm 2020 Extrusion

    • 1x 400mm MGN12 Linear Rail

    • 8x M3x8 Cap Head Screw & 2020 Drop-in T-Nut - M3

    • 4x M5x10 Cap Head Screw

    • 6x 2020 Square T-Nut - M5

    • 1x M5x18 Cap Head Screw

    • 1x M5x12 Cap Head Screw

    • 1x x_endstop_block_3.1 Printed Part

  7. Assembly from Step 3 M5x10 Cap Head Screw 2020 Square T-Nut - M5

    • Assembly from Step 3

    • M5x10 Cap Head Screw

    • 2020 Square T-Nut - M5

    • Loosely thread a 2020 Square T-Nut onto each of the M5x10 screws

    • Assembly from Step 5

  8. 422mm 2020 Extrusion 2020 Square T-Nut - M5 Install one 2020 Square T-Nut into the top slot on each end of the 2020 extrusion

    • 422mm 2020 Extrusion

    • 2020 Square T-Nut - M5

    • Install one 2020 Square T-Nut into the top slot on each end of the 2020 extrusion

    • Install the left x-axis end onto one end of the 2020 Extrusion

    • Install the right x-axis end onto the other end of the 2020 Extrusion

    • Make sure the x-axis ends are fully installed on the 2020 extrusion before proceeding

  9. Tighten the marked M5x10 screws to secure the x-axis ends to the 2020 extrusion 400mm MGN12 Linear Rail Insert an M3x8 screw into every other hole in the linear rail

    • Tighten the marked M5x10 screws to secure the x-axis ends to the 2020 extrusion

    • 400mm MGN12 Linear Rail

    • Insert an M3x8 screw into every other hole in the linear rail

    • Loosely thread a 2020 T-Nut onto each of the M3x8 screws

    • Install the linear rail into the 2020 extrusion as shown

  10. Fasten the marked M3x8 screws, starting from the left x_endstop_block_3.1 Printed Part M5x18 Cap Head Screw

    • Fasten the marked M3x8 screws, starting from the left

    • x_endstop_block_3.1 Printed Part

    • M5x18 Cap Head Screw

    • Make sure the previously installed 2020 square T-Nut is aligned with the marked hole. A small screwdriver or hex key can be used to help position it correctly

    • The correct positioning for the x_endstop_block will be set when building the EVA3 assembly at a later point

    • Take care not to over tighten the M5x18 screw as you can damage the printed parts

  11. M5x12 Cap Head Screw Make sure the previously installed 2020 square T-Nut is aligned with the marked hole. A small screwdriver or hex key can be used to help position it correctly

    • M5x12 Cap Head Screw

    • Make sure the previously installed 2020 square T-Nut is aligned with the marked hole. A small screwdriver or hex key can be used to help position it correctly

    • Take care not to over tighten the M5x12 screw as you can damage the printed parts

  12. 2x xy_joiner_plate

    • 2x xy_joiner_plate

    • 4x M5 Nylon Locking Hex Nut

    • 8x M3x8 Cap Head Screw

  13. xy_joiner_plate Check that the xy_joiner_plate is installed in the correct orientation. It should be flush with the xy_joiner printed part. If it is not, flip the plate upside down and check again M5 Nylon Locking Hex Nut

    • xy_joiner_plate

    • Check that the xy_joiner_plate is installed in the correct orientation. It should be flush with the xy_joiner printed part. If it is not, flip the plate upside down and check again

    • M5 Nylon Locking Hex Nut

    • Tighten the M5x55 screws into the M5 nylon locking hex nuts to secure the plate to the printed part

    • Repeat these steps for the right hand side

  14. V-Core 3.1 Frame Assembly X-axis Assembly (Right side) M3x8 Cap Head Screw

    • V-Core 3.1 Frame Assembly

    • X-axis Assembly (Right side)

    • M3x8 Cap Head Screw

    • Secure the right side of the x-axis to the right y-axis linear rail as shown

    • X-axis Assembly (Left side)

    • Secure the left side of the x-axis to the left y-axis linear rail as shown

  15. Test the movement of the y-axis over the full travel distance

    • Test the movement of the y-axis over the full travel distance

    • Small changes in resistance are normal, but becoming much harder to push, or binding completely are not

  16. This Step is not mandatory, it's just a Rat Rig tip on how to feed the belt on the idlers. The wider the zip tie is, the easier the process will be Bend the tip of the zip tie a little bit and feed it between the printed part and the idler, as shown

    • This Step is not mandatory, it's just a Rat Rig tip on how to feed the belt on the idlers.

    • The wider the zip tie is, the easier the process will be

    • Bend the tip of the zip tie a little bit and feed it between the printed part and the idler, as shown

    • Insert the belt between the zip tie and the idler

    • Slowly feed the belt and pull the zip tie at the same time

  17. Take the loose end of the top CoreXY belt on the left hand side: Feed the belt behind the left xy_joiner

    • Take the loose end of the top CoreXY belt on the left hand side:

    • Feed the belt behind the left xy_joiner

    • Down and around the front xy_idler

    • Around the front bearing stack on the left xy_joiner

    • Take the loose end of the bottom CoreXY belt on the left hand side:

    • Feed the belt around the rear bearing stack on the xy_joiner

  18. Take the loose end of the bottom CoreXY belt on the right hand side: Feed the belt behind the right xy_joiner

    • Take the loose end of the bottom CoreXY belt on the right hand side:

    • Feed the belt behind the right xy_joiner

    • Down and around the front xy_idler

    • Around the front bearing stack on the right xy_joiner

    • Take the loose end of the top CoreXY belt on the right hand side:

    • Feed the belt around the rear bearing stack on the xy_joiner

Author

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Simon Davie

Member since: 8/5/21

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