Rigid stable Z lead shaft upper holder for ELEGOO Neptune 2 / Neptune 3
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Holds X+- / Y+- / Z- directions. Holds X or Y by a 608 ball bearing and holds axial loads by a F8-16 thrust bearing.
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Model information
- Source
- Printables
- Category
- Other Printer Parts & Upgrades
- License
- Creative Commons — Attribution — Noncommercial — Share Alike
This is a rigid stable Z lead shaft upper holder with a double decker structure. Which holds X, Y and axial loads. Then this reduces axial loads for the Z stepper motor and reduces occurrence of dimensional error by compression of the internal spring of the Z stepper. Therefore the accuracy of the Z movement and printing is improved.
| Stock : Direct axial loads to the Z stepper | This holder : Reduces loads to the Z stepper |
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Compatible for Neptune 2 and Neptune 3
I confirmed this working on ELEGOO Neptune 2. The official CAD data indicates the Z lead shaft position of the Neptune 3 is compatible with Neptune 2. Therefore, this may also work on ELEGOO Neptune 3.
BOM
This holds X or Y directions by a 608 ball bearing and holds axial loads by a F8-16 thrust bearing.
| Part | PCS |
| 608-2RS or 608ZZ ball bearing | 1 |
| F8-16 thrust bearing | 1 |
| Bore 8mm 2GT pulley or any metal set collar | 1 |
| 20mm metal standoff | 2 |
| M3x8 or M3x10 for fixing standoff to upper part | 2 |
| M3x10 or M3x12 for fixing standoff to lower part | 2 |
| M4x8 for fixing upper part to frame | 1 |
| M4x10 for fixing lower part to frame | 3 |
| M4 T-nut | 4 |
| The F8-16 direct on top of lower part | The 608 press fit to lower part from bottom |
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note: It is important to use the any metal stopper (pulley or set collar) ON the thrust bearing.
Dual Z Shaft
If you plan to use this onto the dual z shaft, mirror left and right the bottom part.
See also
Simple Belted Dual Z Hellper for ELEGOO Neptune 2 / Neptune 3 for the accuracy of the Z travel is improved.