@jay_s_uk
Okay than I will look for the materials coming week and hope it works 😀 .
Thank you for your help!

@ce72
I wired up the PWM to voltage converter as above, and found I needed the jumper to get an output. So I put the jumper in the 24v side and I was able to tune the voltage down to around 6.5v output, from this i added a "F" value on the M106 line of my config file to limit the output to the required 5v with full control.

I'm pleased to say all is now working great 🙂 I will also order the required risistors and cap to try the other way, to make a cleaner install and not need the work around in the config.

@signpostman Here it is! New restock on dhm-online.com
Come and find your duet 3 new products: duet 3 6xd and more https://www.dhm-online.com/brand/14-duet3d
For USA shipment contact usduet 3 6XD_DHM.jpeg

@phaedrux I tested it the only way I know how. I took my multimeter and measured the resistance on a printed piece. Got open circuit.

Then I scratched a groove in it and put the leads in and from about .5mm apart I got .1ohm.

Does that mean it's too conductive? I should use something else?

@mrt no, you need to use hardware SPI pins. You can however use an accelerometer and 1 temp daughterboard. Just use the CS2 and CS3 pins

@reverb It saves the last print position whether you have it move or not.
On resume you must home first.

The details are discussed here: https://docs.duet3d.com/en/User_manual/Tuning/Resume

@tratoon assuming you have the latest board then yes, but @Rushmere3D is correct take a look at the link the only 6HC board you can do that on is the 1.01a board the others you simply need to set the jumpers and I would use an external PSU and not run off the mainboard.

@dc42 Well, "if you can read, you have a clear advantage" (German saying).... i was stupid... thanks, that was the solution!

@axiom

You can connect your capacitive sensor to the Duet2 as follows.
See Drawing (Duet Docs Link)

And here is everything you need to know for connecting and setting up the capacitive sensor.
Pay attention to the further links in the instructions.

P.S.:
The 3.3V or 5V connections for the sensor are also intended for a sensor that needs these voltages, such as a BLTouch.
Since your sensor requires 10V to 30V, you get these voltages from another suitable pin or terminal on the Duet2 or other boards.
If you have a 12V power supply, the sensor gets 12V, which is within the range of 10v - 30V.
That's exactly how it is if you have a 24V power supply, then these 24V are also within this range.

You see... everything has been thought of. 😄

Google Translate
--- Original Text ---

Deinen kapazitiven Sensor kannst Du wie folgt an das Duet2 anschließen.
Siehe Zeichnung (Duet Docs Link)

Und hier steht alles was Du wissen musst für den Anschluss und die Einrichtung des Kapazitiven Sensors.
Achte auf die weiterführenden Links in der Anleitung.

P.S.:
Die 3.3V oder 5V Anschlüsse für den Sensor, sind auch gedacht für einen Sensor der diese Spannungen braucht wie zB für einen BLTouch.
Da Dein Sensor 10V bis 30V benötigt, holt man sich diese Spannungen von einem anderen geeigneten Pin oder Klemme auf dem Duet2 o.a. Borads.
Hast Du ein 12V Netzteil, dann bekommt der Sensor 12V, was im Rahmen der 10v - 30V liegt.
Genau so ist es wenn Du ein 24V Netzteil hast, dann liegen diese 24V auch in diesem Rahmen.

Du siehst... es ist an alles gedacht. 😄

Thank you.

Just a question

0d01c598-6a31-475e-bae8-ffec314fb800-image.png

I'm battling to find a 5v 4A inductor circled in red (L1) do you perhaps have a bit more info on it for me, I'm looking at RS Components for the little guy, but don't find a 5v 4A to replace him with, and I'm an IT guy so electronics aren't my forte 😞 but I manage to get by.

Also, I noticed something I didn't before, EtherCAT? Does the 6hc have the ability to send signals over ethercat to external drivers?

Yes that guide would be a good start. You'd need to determine if the hardware included with the D600 is normal generic parts or if there is something proprietary or exotic. Is the Z probe able to interface with the Duet, are the heater cartridges standard, are the thermistors unique in some way, etc.

@axiom

Here is an example of what it could look like.

; Inductive Z-Probe M558 P5 C"!io3.in" H5 F400 T5000 ; set Z probe type to unmodulated and the dive height + speeds G31 P500 X-30 Y-15 Z0.20 ; set Z probe trigger value, offset and trigger height

Please do NOT adopt 1:1, but adapt to your settings.
What these are is on the previously linked page or on the further links listed there.

P.S.:
Could that help you too?

M558 (GCode Dictionary)
G31 (GCode Dictionary)

Google Translate
--- Original Text ---

Hier ein Beispiel wie es aussehen könnte.

; Inductive Z-Probe M558 P5 C"!io3.in" H5 F400 T5000 ; set Z probe type to unmodulated and the dive height + speeds G31 P500 X-30 Y-15 Z0.20 ; set Z probe trigger value, offset and trigger height

Bitte NICHT 1:1 übernehmen, sondern Deinen Einstellungen anpassen.
Welche das sind, steht auf der vorher verlinkten Seite bzw den dort aufgeführten weiterführenden Links.

Thanks @chrishamm. I now have a RPI400 working as the SBC with a Duet3 6HC, using an unchanged DuetPi image. It will be controlling a RatRig KillerBee CNC. I'm using a SunFounder 10.1" touchscreen, and the RPI400 is powered through the touchscreen, using only the screen's 12V PSU. I have version 1.01a of the Duet3 6HC, so its 5V is not used to supply the RPI400. So far I have tested a limit switch, and a stepper motor, using DWC, and all looks good.

It depends on if you want to control all 4 motors individually for bed traming. If yes, every motor needs to be connected to individual stepper driver. So each will have its own set of parameters, which will be identical if you use the same kind of motors.
Other option is that all motors will be working together as one and bed traming will be done manually by turning screws of each motor. In this scenario all motors could be connected to 1 stepper driver. There are actually 3 ways to connect 4 motors to 1 driver.

All motors are connected in series. That way they will be seen as one 1,8A motor but with 4x higher inductance and resistance. It might work on low inductance motors and or high supply voltage, so you can actually create enough torque for desired speeds. Each motor will get exactly same current = same torque. All motors in parallel. They will act as 7,2A motor which is to much for most boards unless you will decrease actual current by a lot. Another issue is that current for each motor might not be equal due to differences in resistance and inductance - manufacturer tolerances. This might result in different torque of each motor, so if actual torque will be to close to actual required, some motors might loose steps - very bad. Mixed set up. You connect in parallel 2 sets of motors, where a set of motors are 2 motors connected in series. This way you get "best of 2 worlds". Current of 3,6A but not so high required voltage for supply.

I personally have 3 motors, each on separate driver which is best. I experimented on three 1,8A motors connected in parallel on 6HC board which worked on dry runs (but I also work on 37V supply). I don't know about that during printing.

I hope that will give you general idea.

@onerob

An info about the input shaping with the Duet.
Input shaping is integrated in the DWC.
It becomes visible as soon as the acceleration sensor is successfully set up with M955 in config.g.

But you should then install the input shaping plugin (Version 3.4.1-b1 / GitHub Link) from @chrishamm.
Only then can the input shaping data be conveniently compared, managed and configured.

If input shaping with the Duet is new to you... maybe this info is too !? 🤔

Google Translate
--- Original Text ---

Eine Info noch zu dem Input Shaping mit dem Duet.
Im DWC ist Input Shaping ja integriert.
Es wird sichtbar sobald in der config.g der Beschleunigungssensor erfolgreich mit M955 eingerichtet ist.

Man sollte aber danach das Input Shaping PlugIn (Version 3.4.1-b1 / GitHub Link) von @chrishamm installieren.
Erst damit kann man die Input Shaping Daten konfortabel vergleichen, verwalten und konfigurieren.

Wenn Input Shaping mit dem Duet neu für Dich ist... ist es diese Info vielleicht auch !? 🤔

Thank you all for the help and sorry for late reply. Ended up getting replacement boards (main and expansion) at a very good price and thankfully nothing blew up when I reconnected. I had all connections labeled with orientation, and double checked, but was still weary when flicking the power switch on!

Really kicking myself for working on it late at night, in low light levels, leading to the 1 pin misalignment mishap. Constantly live and learn!

Click on the Topic Tools icon (the little gear) and select "ask as question". Then click on it again and select "mark as solved".

@droftarts Funny enough, I used a 4th USB cable, and it worked. I have fixed the issue and it is running again.

@phaedrux @droftarts Thanks a lot.

Oh, yes. Of course it's the D2450!

I just connected the SSD input to the PS_ON output. (I had completely forgotten about that port - thanks for pointing out!)

With this I can workaround the broken transistor for the important fan of my machine. I'll just run the other fan as always on fan from now on (it's just an aesthetic and not a functional flaw for my machine).

Thanks for the help and your offer with which I do not want to bother you now. It's fun to be (a small) part of such a community and to buy products from a company with this kind of customer support!

Best regards!
Christian