Multiple actuators per axis
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My custom cartesian printer has 4 actuators on the Z axis and 2 on the X.
I assumed that it would be trivial in the setup to link these actuators together but its not obvious to me how to do this.
I originally thought I would just slave the step and pulse data to the ganged actuators, but I need to be able to home the four Z-axis actuators individually. I also hoped to be able to use the independent Z actuators for better bed leveling.
Is this type of linking available with the Duet? Any help would appreciated.
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@ajlapp Yes it is indeed available on the Duet but you will need the Duex 2 or maybe even the 5 to do it there is a section in the wiki that deals with independent z levelling
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Perfect. I have a Duex5...I somehow missed this section in the wiki.
That solves the Z-axis.
Can I use a similar technique for ganging my two X-axis drives together? It's a gantry style system with one actuator on each side of the machine.
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Should be possible for the X axis also, but not sure if you are going to run them independent or just parallel (for more torque?).
Look at this page for the Z-axis
https://duet3d.dozuki.com/Wiki/Bed_levelling_using_multiple_independent_Z_motors -
I'm going to run the X-axis parallel mainly because the gantry is so large it couldn't be driven from just one side....the scale of the machine is more like a CNC router.
Can M584 be used to gang them together same as with the Z?
Example:
M584 X0:7 ; two X motors connected to driver outputs 0, and 7Reading the G-code wiki suggests that this is indeed a valid approach.
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@ajlapp Haven't tested it my self, but yeah it should be valid
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@ajlapp yes that M584 is indeed a valid approach
