makerbase-mks / MKS-SGEN_L-V2

MKS SGEN_L V2.0 is powerful 32-bit 3D printer control board. The CPU is LPC1769 120MHZ, SGEN_L V2 hardware Integrated 4KB EEPROM, 5AXIS and dual Z interface, has 2 way FANs and Dc12/24V out interface, support TMC UART and SPI mode...

https://www.aliexpress.com/item/4001283346331.html?spm=a2g0o.store_home.slider_165457030.0

GNU General Public License v3.0

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Firmware modifications for dual Z axis upgrade #46

Closed ILGROSSOFA closed 3 years ago

ILGROSSOFA commented 3 years ago

I would like to add a dual Z axis stepper motor and driver but I'm not sure how to proceed. First of all where should I connect the motor? Z2 or E1 port? If I connect motor to Z2 port still I have to add the stepper driver in the 5th place? Which modification should I do in firmware? So I miss a lot of info, please help me, thank you GROSSO

mks-viva commented 3 years ago

If you use Z2 interface，you need not set firmware

TempestWales commented 3 years ago

If you use Z2 interface，you need not set firmware

When I connect the second motor to the Z2 port, both of them will skip steps when moving the Z-Axis on my pre-gcode (See below) movement. Moving the Z-Axis manually is fine as well as slow movements. This issue occurs even if the second motor isn't connected to a screw, and goes away when either motor is used individually.

G90 ; switch back to absolute mode G1 Z30.0 F9000 ;move the gentry up 30mm G92 E0 ;zero the extruded length again

ILGROSSOFA commented 3 years ago

If you use Z2 interface，you need not set firmware

Hi, I don't want to share one driver for dual Z, I want to use a dedicated driver for Z2 axis, in order to be able to use auto Z align.

mks-viva commented 3 years ago

If you use Z2 interface，you need not set firmware

Hi, I don't want to share one driver for dual Z, I want to use a dedicated driver for Z2 axis, in order to be able to use auto Z align.

E1 as Z2

ILGROSSOFA commented 3 years ago

If you use Z2 interface，you need not set firmware

Hi, I don't want to share one driver for dual Z, I want to use a dedicated driver for Z2 axis, in order to be able to use auto Z align.

E1 as Z2

Hello Sirs, if I understand well I have to use the E1 port and not Z2 port to be able to use its own stepper driver, right? And then I indicate #define NUM_Z_STEPPER_DRIVERS 2.

In configuration.h file what is the correct configuration to enable Z2 on E1 port? Thank you. Best regards GROSSO

mks-viva commented 3 years ago

@ILGROSSOFA If you want to E2 as Z2, so, you need change it on configuration_adv.h file:

define NUM_Z_STEPPER_DRIVERS 2