@codfish124 If your goal is to prevent the bed from moving, just adding diodes won't do the job. They will slow the drop of the bed, but it will still drop. Think about it- the motor only generates voltage/current when it is spinning. If the motor is spinning, the bed is dropping.

Update: Mouser just emailed: Production Issues Reported - Delivery Unknown for the hirose connectors.

So, I made one to use the regular PI4. Waiting for the boards to test.

@dc42 Yes, I know about it. But I didn't have these arduino models in stock. It was interesting to connect the "nano" that I had. And everything worked out...

@run-it
I was wondering how you align the bed for 6 independent nozzles with only one bltouch? First layer must be a nightmare...

It may be possible to integrate with standard RRF. E.g a wifi esp32 polls the extrusion length and controls the flow percentage.

I think that the next step is it evaluate if dynamic flow adjustment provides any value. May or may not be the case.

@dhusolo PanelDue uses 3.3V signal levels, Arduino Nano uses 5V. If you use a level shifter then you probably don't need to change the resistor.

@rjenkinsgb Thanks mate, very kind, but I'm not in UK
One of your colonies...

@t3p3tony
STL is uploaded to this site, I couldnt upload the fusion file as its not in the allowed file upload filter, I also didnt see zips allowed so I have a link to it on my drop box.

MFS_newBase.stl

https://www.dropbox.com/s/9e47vm6t26r3db4/MFS_newBase.f3d?dl=0

Thanks @T3P3Tony, that might be part of it too.

I did wonder if I could use the second encoder phase to give direction data to the duet, sounds like it'd require a firmware update. Fair enough.

I have also wondered if the level of precision available for the distance per pulse setting is letting rounding errors build up in this case. But that being said it would be a continuous build up of error rather than one that comes and goes during the print.

I've disabled the sensor again for now so I can get on with printing some larger parts. However I'd really like to get this working as I want to use a layer by layer readout of filament status as a metric for print quality.

The plan is to eventually merge the data with the lower error threshold data logged from closed loop stepper motors to give an overall print quality metric, and indication of where any remedial action might be necessary.

As always really appreciate the level of support from the duet team.

Many thanks
Barry M

Hello

My problem is that my pendant (the same as david's, with an arduino micro) only sends the M112 command, but does not perform any movement via the encoder. My hardware is a DUET3 6HC with SBC and without Panel DUE, Configuration CNC. The arduino sketch was uploaded with firmware 1.8.1 thank you for your help

@t3p3tony Ahh ok. Thanks for the information.
Cheers
Barry M

@t3p3tony said in NEMA 17 24v power off Brake on D3 Mini:

@cncmodeller they would both be on the mainboard in this case so for example
M569 P3 C"out2" ; driver 3 on mainboard uses port out 2 on mainboard.

👍 got it. Many thanks. 😀

@t3p3tony said in Emulate a PT 100 daughter board with an Arduino:

@cncmodeller the sensor on a pt100 is a MAX31865 so the information on how the duet reads in is in the datasheet.

https://datasheets.maximintegrated.com/en/ds/MAX31865.pdf

Controlling an AC heater over Bluetooth would make me think carefully about secondary safety for overheating or loss of connection.

Thanks @T3P3Tony, yes I'm going to include a physical thermal fuse on the bed and watchdogs in the code. Totally agree it's a little sketchy unless you think very carefully about not setting fire to the workshop!

@dc42 Any info on if it will be available as an upgrade?

I'm running the latest beta firmware. 3.4 beta 3

@metty said in Magnetic Filament Sensor "sensorError":

So what I have done is, I have deactivated the Filament-Sensor. It seems, that the error is still here.

How have you deactivates the filament monitor? Please post the result of sending M591 D0 after you have deactivated it.

@beej said in Duet maestro Driver Expansion underpowered?:

awesome that worked It's homing and everything is moving in the right directions.
The steppers are sounding a little grinding, i'm not sure if that's quite the right word.
But they aren't running as smoothly as they have been, would that have to do with the interpolation, or current...?

There is a design issue on the 2-driver expansion board (which was not designed by Duet3D) which sometimes causes the P6 driver to run a little rough, but does not affect the P5 driver. So if it's just the motor attached to P6 that sounds rough, this could be the reason. See https://forum.duet3d.com/topic/16124/duet-maesto-stepper-driver-expansion-schematic/24?_=1629705413513 and the following posts for the remedy.

@gost101 That will be fine as long as you don't draw too much current for the 5 Volt supply or the connector you are using.

@haydn Ok, I'll give it a try. Since I'm printing quite fast (60mm/s for bed adhesion is my "standard"), I was wondering if the high velocity of the head, while printing the part, could be handled without problem or any unwanted vibration that may be caused by that un-co-linearity.

I've contacted you in private chat for those custom made 10mm CF rod.