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Triple Z-drive with Stepper Expander

E_tech_14

Triple Z-drive with Stepper Expander
October 21, 2017 12:31PM

Registered: 6 years ago
Posts: 4

Hi,

I am building a large 3d printer and need triple Z-drive for payload and autolevel reasons. To attach all steppers I use a stepper expander X3 on an RAMPS1.4.
As far as I can see it, Marlin supports dual drive for X,Y,Z, but not triple drive.
Before I start to modify the code, I would like to ask if this was already done in some fork or if I am just missing something in the configuration?

Thanks,
Heiko

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ebraiman

Re: Triple Z-drive with Stepper Expander
November 13, 2017 09:14AM

Registered: 7 years ago
Posts: 17

E_tech_14,

I'm guessing you looking to add more extruders to RAMPS1.4? If this is the case I have a video that might help ....[youtu.be]
It should in theory handle three, but I've only added 2 additional. Hope this helps.

Regards,
Ed

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E_tech_14

Re: Triple Z-drive with Stepper Expander
November 15, 2017 03:14AM

Registered: 6 years ago
Posts: 4

Hi Ed,

Thanks for the video. I wasn't looking for more extruder motors. I want to use 3 separate steppers with an end-stop each for the Z-Axis. As far as I can see it, there is only an option for Z_DUAL_STEPPER_DRIVERS.