progress pics! (front and back view) It's coming together. I've got everything routed and the design rules checker is happy. I'm going to take a couple more days to mull over some choices, maybe clean things up a little more and send this off to get fabbed! I'm sure there's one killer feature that I'm forgetting to add. Hopefully I think of it before then 🙂

You might notice that I gave up on the idea to sandwich the CM5 in-between the boards. It seemed like an elegant idea in my head, but in practice the layout/routing wasn't making sense to me. The CM5 will probably be happier in open air with a passive heatsink anyways.

duet_pi_front.jpg duet_pi_back.jpg

@droftarts thanks on that. Still there is something not right as it does not react to pin low, 0V, for long pause.

Update - I had a problem with PS. Something with wiring as after I checked it, all is working now. Selection and loading as well. Still waiting for steeperonline motors as I use one from extruder pancake, not strong for selector to keep it in position.
Thanks!!

@jay_s_uk thanks, I was hoping this was the case 🙂 it's a better option than using multiple tool boards!, I'll be keeping eye open for any updates

@supertb1
thanks a lot your post help me to set my smart sensor. Appreciated

@droftarts thanks for replying.
This model you mentioned, from aliexpress, theoretically doesn't need any changes to the wiring, right?

@KnyteTech looks good, but I suggest you use P1 instead of S1 in the M950 command.

Sorry for the late update I ran into some other issues I needed to take care of.

So it looks like I got this working after I fixed a few issues. I managed to print a temp tower without issue, maybe I'll have problems in the future with other prints.

Installed a mount close by the extruder (around 1" of distance between the sprite pro extruder Removed my filament-error.g (it was trying to pause then run filament-error.g) Used the BTT recomended g-code but adjusted E value to 22 Changed my retraction speed to 60mm/s

Here is the g-code I'm using

; Filament Monitor (Filament Runout Sensor, Big Tree Tech - Smart Filament Sensor V2) M591 D0 P7 C"io0.in" L2.88 R75:125 S2 E22

@AJ-Quick From where can I get this board?

@jay_s_uk Okay, thank you for you help 🙂

@Muhammed the PS_ON pin could be used for this purpose, but you must connect a flyback diode (the right way round!) in parallel with the relay coil, to protect the output from the coil back emf when you turn the relay off.

Alternatively, use a relay module instead of a bare a relay, then you should be able to drive from one of the pins on the expansion header.

@infiniteloop Thank you so much for your reply. This will give me a push forward.

@Ryosuke-Saito In my experience with other brushless step/dir interfaces it is the other way round:
A stepper with 200/400 polepairs versus a BLDC motor with eg. 10 or 15 PP needs way more pulses per revolution.
The good thing about FOC is, you can fake a much higher resolution than there is. The microstepping works here, too.
So I configured my gimbal motor drivers the same way as the steppers and they work flawlessly as extruder drive.

@ELAD . Is it working properly? I am designing a laser cutter with the ODRIVEs. Please let me know

@dc42
Hi, that did the Trick.
Thanks fo the wise answer.

@RandyL00123 you read the current value from the object model and adjust with G31 by doing something like G31 K0 P{sensors.probes[0].value[0] + 50} (untested, needs validation, maybe add 100 instead of 50) with added safeguards should the idle value already be something high (above 850 or so) to avoid crashing with a triggered sensor

@Phaedrux I fix the fan and now it's working. Thank

@Yukikaze I confirm that this was not working in rc3. I have corrected the 3.5 source code and tested the fix. Thank you for reporting it.

Just confirming endstops work fine on 3.3V. I've wired the fans to a 12V fan socket. All working so far...