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

Awesome thanks!!

@droftarts
Awesome! Thanks, I will crank through this over the next few days. I saw on the alarm tab the code descriptions. The wiring example above didnt have the alarm.

The 6XD example shows "D0_Err" can I assume that is an general input that can be connected and configured?

The header is different on the 1XD, no I dont see the ERR pin. I am assuming the plug just goes into one of the other inputs on that board?

Scott

Greetings,

I am totally new to Duet, trying to get my first build up and running. I am using the 6XD and 1XD drives to run closed loop steppers. I have 4 Z, 2 Y, and 1 X Stepper.

CL57T-V41 from Steppers online.

I am struggling to understand the alarm message wiring:

Its the "Com" port that is throwing me off. Is it as simple as wiring +5V to "Com", and then the "ALM" to the "D0_ERR" pin?

Is three any further setup that has to be done to monitor these pins?

Also curious of the printer behavior, when an error hits, what will the machine do? Is it possible clear the drive problem and continue printing?

Would really appreciate any help!

Scott

@droftarts

Thanks Ian! I will give it a try! Is the general idea to get rid of the z switches, as this is now done with the touch probe?

Scott

Greetings,

I just read through the documentation on choosing a Z-probe, but am struggling to decide which one to purchase. Wondering if I could get some help.

My Setup:

1. Glass print bed
2. 4 Z Axis lead screws
3. Liquid cooled hotend from slice:
   https://www.bondtech.se/product/mosquito-magnum-plus-liquid-cooled-285mm-hotend/

I have a very large gantry, 1,300mm print bed and certainly think a probe will be necessary. It looks like most fit directly onto the hot end. I dont understand the mounting particularly well, wondering if it would work with this liquid cooled head? Would anyone be able to give me a suggestion for a probe for this?

A second question about axis homing switches. Would I be able to forgo them on the Z axis altogether as long as I have a decent touch probe?

Thanks!

Scott

@fcwilt I am planning on a large tempered glass surface.

@fcwilt Makes sense. In the case of an error where the part is stopped mid print, you have to remove the part. I suppose this is inevitable if you want to re-zero the bed.

Questions:
Endstop positions - should be slightly above the bed?
Z Probe - Do you have any suggestions for a machine like this?

I

@fcwilt
Ha! Well.. looks like I could use some advice here. Please have a look at the pictures for perspective. This is my first experience with Duet and I'm learning.

1800mm cubic volume, the gantry moves with the light weight print head. The glass plate is fixed at the bottom. You can see the 4 stepper motors in each corner, there is a lead screw which raises and lowers each side. I was imagining a homing program where they all move up in z until they hit the switches. If there is a better way to do this I am WIDE open to suggestions?? Struggling to think of how to get each corner level.

I am using ClearPath servos for the X and Y Axis.
https://teknic.com/model-info/CPM-SDHP-2310S-ELN/?model_voltage=75VDC

They have a nice feature where they move at a reduced torque into a hard stop. I was thinking of bumping the X/Y into stops and setting the position at -900mm for both X and Y. Is there a better way of doing this?

Thanks for your advice!

-Snyggis

@fcwilt

Ok, looking at this it is a bit more complicated.

X and Y - I am using servo motors. They have a "Home to hard stop" feature. This is done by driving an IO high on the servo drive and once it has completed homing the servo drive will output a signal to indicate homing complete.

I believe this is what I am trying to accomplish:

1. Drive all 4 Z stepper motors up to their top end stops. This gets the head out of the way for homing X and Y.
2. Home X and Y

• Activate IO to commence homing

• Wait for an IO to go high to confirm homing complete

So far does this sound reasonable? It is a large gantry and I want the z as square as possible. Would it make sense to then go down with a z probe and find the position of the table and measure its flatness?