¶ Introduction
This guide covers the disassembly of a V-Core 3.0 machine to prepare it for the 3.1 upgrade.
As a large number of components will be re-used for 3.1, it is recommended to sort them during disassembly so that they are easily found during the 3.1 build process.
¶ Step 1 - Disassemble EVA2 - Part 1
- Your EVA2 assembly may differ from the one shown. The EVA2 sections of this guide should be used as general advice for disassembly.
- Remove the four M3x20 screws
- Remove the EVA2 shroud
- Remove the 40x10mm hot end fan
¶ Step 2 - Disassemble EVA2 - Part 2
- Remove the two marked M3x25 screws
- Remove the hot end assembly
¶ Step 3 - Disassemble EVA2 - Part 3
- Remove the lower face support
- Remove the four M3x8 screws
- Remove both belt grabbers and free the CoreXY belts
¶ Step 4 - Disassemble EVA2 - Part 4
- Remove the M3x25 screw securing the 5015 fan
- Remove the 5015 fan
- Remove the three M3x12 screws securing the cable holder
- Remove the cable holder assembly
¶ Step 5 - Disassemble EVA2 - Part 5
- Remove the two M5x45 screws securing the belt grabbers into the EVA2 back
- Pull the belt to remove the belt grabbers
- Remove the belt from the belt grabbers
- Slowly pull one end of the first belt to remove it from the CoreXY drive mechanism
- Repeat to free the second belt
¶ Step 6 - Disassemble EVA2 - Part 6
- Remove the three M3x35 screws from the Bondtech BMG extruder
- Remove the Bondtech BMG extruder
- Remove the extruder NEMA17 stepper motor
- Leave the remainder of the EVA2 assembly for now. It will be further disassembled in Step 32
¶ Step 7 - Remove the bed assembly
- Lower the z-axis by turning each lead screw counter-clockwise
- Lift the bed assembly upwards to raise it off of the arms
- Disconnect the heated bed wiring and set it aside for the V-Core 3.1 assembly
¶ Step 8 - Remove the x-axis assembly
- Whilst supporting the x-axis assembly, remove the eight marked M3x8 screws
- Remove the x-axis assembly from the V-Core 3 and set it aside until Step 30
¶ Step 9 - Remove the front bed arms
- Remove the two marked M5x35 screws from the front left arm
- Remove the four M3x20 screws from the front left arm
- Repeat the above 2 steps to remove the front right arm
- Set the both front bed arms aside until Step 27
¶ Step 10 - Remove the front lead screws
- Loosen the upper M3 screw on the lead screw coupler
- Gently pull the lead screw upwards and out of the coupler
- Remove the anti-backlash nut block from the lead screw
- Repeat the above 3 steps for the lead screw at the front right side
¶ Step 11 - Remove the front linear rails
- Loosen all of the M3 screws securing the linear rail to the V-Core 3.0 frame
- Remove the linear rail, taking care not to let the carriage leave either end of the rail
- Repeat the above two steps for the linear rail on the front right
- Set the linear rail assemblies aside, they will be re-installed during the V-Core 3.1 assembly guide
¶ Step 12 - Remove the front motor mounts
- Remove the four marked M6x20 screws
- Remove the front left z-axis motor mount
- Retrieve the four 3030 drop-in t-nuts from the 3030 extrusion
- Repeat the above three steps for the motor mount on the front right side
- Set both assemblies aside until Step 25
¶ Step 13 - Remove the rear bed arm
- Remove the two marked M5x35 screws from the rear bed arm
- Remove the four M3x20 screws from the rear bed arm
- Set the rear bed arm aside until Step 28
¶ Step 14 - Remove the rear lead screw
- Loosen the upper M3 screw on the lead screw coupler
- Gently pull the lead screw upwards and out of the coupler
- Remove the anti-backlash nut block from the lead screw
- Set the lead screw aside, along with the other two, for use during the V-Core 3.1 assembly
¶ Step 15 - Remove the rear motor mount
- Remove the two marked M6x20 screws
- Remove the two marked M6x12 screws
- Retrieve the four 3030 drop-in t-nuts from the 3030 extrusion
- Set this assembly aside until Step 25
¶ Step 16 - Remove the rear linear rail
- Loosen all of the M3 screws securing the linear rail to the V-Core 3.0 frame
- Remove the linear rail, taking care not to let the carriage leave either end of the rail
- Set the linear rail assembly aside, it will be re-installed during the V-Core 3.1 assembly guide
¶ Step 17 - Remove the left CoreXY idler - Part 1
- Remove the marked M6x12 screw
- Remove the two marked M6x14 countersink screws
- Remove the M5 nylon locking nut from the underside of the idler bracker
¶ Step 18 - Remove the left CoreXY idler - Part 2
- Remove the marked M5x40 screw
- Lift the xy_idler printed part off the V-Core 3.0 frame
- Remove all components of the idler stack
- Retrieve the three 3030 drop-in t-nuts from the 3030 extrusion
¶ Step 19 - Remove the right CoreXY idler
- Repeat the previous step to disassemble the front right idler
¶ Step 20 - Remove the right CoreXY motor assembly - Part 1
- Support the NEMA17 stepper motor
- Remove the four marked M3x35 screws
- Remove the NEMA17 stepper motor from the mount
¶ Step 21 - Remove the right CoreXY motor assembly - Part 2
- Remove the two marked M5x35 screws
¶ Step 22 - Remove the right CoreXY motor assembly - Part 3
- Remove the three marked M6x14 countersink screws
- Lift off the top of the CoreXY motor mount
- Retrieve the three 3030 drop-in t-nuts from the 3030 extrusion
- Remove the lower part of the CoreXY motor mount
¶ Step 23 - Remove the right CoreXY motor assembly - Part 4
- Remove all components of the two idler stacks
¶ Step 24 - Remove the left CoreXY motor assembly
- Repeat Steps22 and 23 to disassemble the left CoreXY motor assembly
¶ Step 25 - Disassemble the front motor mounts - Part 1
- Loosen the lower M3 screw on the lead screw coupler
- Remove the lead screw coupler
- Remove the four marked M3x18 screws
- Lift the pillow block assembly off and set it aside
¶ Step 26 - Disassemble the front motor mounts - Part 2
- Remove the printed mount from the NEMA17 stepper motor
- Set the NEMA17 stepper motor aside for the V-Core 3.1 assembly guide
- Repeat Step 25 and the above two steps for the other two z-axis motor mounts
¶ Step 27 - Disassemble the front bed arms
- Remove the two marked M3x20 countersink screws
- Remove the neodymium magnet
- Remove the two M3 nylon locking hex nuts
- Repeat the above three steps for the front right bed arm
¶ Step 28 - Disassemble the rear bed arm - Part 1
- Remove the two marked M3x20 countersink screws
- Remove the neodymium magnet
- Remove the two marked M3x30 screws
¶ Step 29 - Disassemble the rear bed arm - Part 2
- Remove the bed cable tiedown printed part
- Remove the four marked M3 nylon locking hex nuts
¶ Step 30 - Disassemble the x-axis gantry - Part 1
- Remove the four marked M5 nylon locking hex nuts
- Remove both xy_joiner_plates
- Remove the four marked M5x10 screws
¶ Step 31 - Disassemble the x-axis gantry - Part 2
- Remove the two marked M5x12 screws
- Remove both xy_joiners from the ends of the 2020 extrusion
- Retrieve the six 2020 square t-nuts from the 2020 extrusion (three at each end)
¶ Step 32 - Disassemble the x-axis gantry - Part 3
- Remove the four M3x10 screws securing the remaining EVA2 assembly to the linear rail carriage
- Remove the remaining EVA2 assembly from the 2020 extrusion and linear rail assembly as shown
- Set the 2020 extrusion and linear rail assembly aside, as it will be needed during the V-Core 3.1 assembly
¶ Step 33 - Disassemble the xy_joiners - Part 1
- Remove the two marked M5x55 screws from the xy_joiner assembly
- Remove all components of the front toothed idler stack
- Repeat the above two steps for the opposite xy_joiner
¶ Step 34 - Disassemble the xy_joiners - Part 2
- Remove all components of the rear idler stack on both xy_joiner assemblies
¶ Step 35 - Using the 3.0 base panel with the 3.1 upgrade
- It is possible to reuse the V-Core 3.0 base panel with the V-Core 3.1 upgrade, however additional cuts will be required
- A 2D printable template, as well as a modified rear motor trim are provided on the V-Core 3.0 to 3.1 Upgrade Page
- Refer to the provided image to align the templates for cutting the base panel
¶ Step 36 - Next guide
- This completes the required disassembly for the V-Core 3.0. Further instructions for building the V-Core 3.1 are found in the following guide:
- V-Core 3.1 Guide - 02. Z-Axis Assemblies