4 Z Axis Leadscrews

Snyggis 0

Greetings,

I am trying to figure out how to use the firmware configuration tool to set up a printer with 2 motors on the Y axis, and 4 on the Z axis. Is this done under the "kinematics" section? Cartesian CoreXYUV?

I see down in Axes, the ability to add an axis, however I dont see how an axis letter is specified to be a second Y axis, or a 2nd, 3rd, or 4th Z axis.

Thanks!

Scott

jumpedwithbothfeet

@Snyggis-0 morning, if I've read your post right your looking for an additional axis, not assigning motors to axes? if that's the case you need to add the axis to M584.

https://docs.duet3d.com/User_manual/Reference/Gcodes#m584-set-drive-mapping

Rn (optional, supported in RRF 3.2beta1 and later) 0 = axes created in this command are linear, 1 = axes created are rotational. If not present, then RRF 3.2beta3 and later assume UVW are linear and ABCD are rotational.

the additional "Y" axis would actually be labelled "U" and you then assign which drive you are using to it.

droftarts

@Snyggis-0 This wasn't possible with the old config tool, but is if you're using the latest one: https://configtool.reprapfirmware.org/Configuration.

There's a '+' icon in the driver column:

Make sure you have enough drivers defined first.

Ian

T3P3Tony

@Snyggis-0 I see you started a new thread that is really a continuation of this one.

@Snyggis-0 said in Multiple Z stops:

rying to configure my 4 end stops for the z axis(with 4 motors and lead screws). The switches are wired, but when I try to the methods to verify them they dont seem to work with multiple swithches.

Green Box - this doesnt light up
M199 - Doesnt display
Endstop plugin - They extra ones are not displayed
Does anyone know how to get these to show up?

Lets continue the discussion here. can you post your config.g to show how they are setup.

dc42

@Snyggis-0 if both Y motors are driving a single Y axis then you don't need to create additional axis. Just assign two drivers to the Y axis in the M584 command. Similarly for 4 motors driving a single Z axis.

Snyggis 0

@dc42

I am attaching my config file. I was able to assign all of the axis with their appropriate end stops. At this point I am trying to test the switches before I run the homing routine.

configtool 2-21-25.json

Because I have 4 on the z axis, I dont see how to check them individually. I tried all the steps in the commissioning guide, but cant see how it would apply to multiple switches on one axis? I can trigger the X just fine and see it working, but the other ones dont seem to be working.

Please let me know if I need to attach the whole config file.

Thanks!

Scott

dc42

@Snyggis-0 to check that all the endstops are working, enable the Object Model browser plugin in Duet Web Control, then go to the Object Model browser tab and expand sensors and then endstops. Pressing any one of the four Z endstop switches should change the displayed status to triggered.