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Self-centering tapered-thread Z-axis coupling for Anycubic I3 Mega 3D Printer File Image 1
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Self-centering tapered-thread Z-axis coupling for Anycubic I3 Mega

eferbel avatareferbel

October 27, 2019

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Description

I had Z axis wobbling and I replaced the original couplers for these remix of the amazing Self-Centering tapered-Thread Z- Axis coupling designed by loco.

I try to use directly in my Anycubic I3 Mega but had 2 problems:

  • The nut is very close to the Z endstop and is touched when it turned.
    I have rounded the top half of the nut and now it rotates perfectly.

  • When I tried to disassemble it, I managed to remove the nut from the threaded rod but was impossible remove the motor shaft nut from the z-coupler. In the end I had to cut the nut and z-coupler broke too.
    I have added a fixed nut to the Z-coupler body and now you can block the z-coupler and tighten or loosen the threaded rod nut or the motor shaft nut independently.

Also, I created a 16 mm fixed wrench for this new nut. I had not a metal fixed wrench.

The improvement in impressions has been spectacular. Layers perfectly aligned due to the absence of wobbles of the Z axis.

Print in PETG infill 100% without support. All models are in the correct orientation when you drop in the build plate.


Tenia los ejes Z desalineados y reemplacé los acopladores originales para este remix del sorprendente acoplamiento de eje Z con rosca cónica y autocentrado diseñado por loco.

Intenté usarlos directamente en mi Anycubic I3 Mega pero tuve 2 problemas:

  • La tuerca quedaba muy cerca de los finales de carrera de los ejes Z y rozaban cuando giraban.
       He redondeado la mitad superior de la tuerca y ahora gira perfectamente.

  • Cuando intenté desmontar los acopladores, logré quitar la tuerca de la varilla roscada, pero fue imposible quitar la tuerca del eje del motor del acoplador en Z. Al final tuve que cortar la tuerca y el acoplador en Z también se rompió.
    He agregado una tuerca fija al cuerpo del acoplador z y ahora puede bloquear el acoplador Z y apretar o aflojar la tuerca de la varilla roscada o la tuerca del eje del motor de forma independiente.

Además, me hice una llave fija de 16 mm para esta nueva tuerca. No la tenia de metal.

La mejora en las impresiones ha sido espectacular. Capas perfectamente alineadas debido a la ausencia de oscilaciones del eje Z.

Imprieso en PETG con relleno de 100% y sin soportes. Todas las piezas están orientadas tal y como deben de ponerse en la cama.de la impresora.

License:

Creative Commons - Attribution - Non-Commercial - Share Alike

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