Hello,

I have wired a few 3d printer's previously with a SSR controlling them hotbed, the hotbed having a redundant thermistor (seemycnc - drill hole on side of plate and add extra thermistor) as well as a Thermal Cut Off wired with my HighTemp RTV Gasketed 1000W SIlicone hot bed.

I know it is quite a bit excessive for my hot bed which is 400x400, but I do not wish to buy another. Also, living in the USA, I am at 120V, I almost wish I had bought 220V back when I purchased it and used a step up transformer - anyone hear of any success like that?
Back to my story: I have one SSR that will be powering the hot bed, I also have a sealed enclosure and a 400W PTC Heater, and a low wattage but mains powered in-line exhaust fan that is going to venting the printer outside when X temperature is reached.

Because of my 1000W hot bed, I made the assumption that between that, the PTC 400W heater, my inline fan, my 3d printer, all the neopixels, that I should have a separate IEC Cable powering the 1000W Hotbed, 400W PTC Heater and in-line exhaust fan.

I have this roughly all wired up and I have taken time and care to make sure all grounds are connected where they should be.

My big question here is: IEC CABLE --> FIltered, Fused, IEC Inlet --> Live WAGO + Neutral WAGO + GND WAGO. Then each wago to the appropriate connections for the 3 SSR's.

Is it this simple?
Is there something else I should be doing? Possibly resistors between the wago and the SSR or something?

I just want to make sure I am doing everything safely. Thank you to anyone who contributes.

@t3p3tony hello sorry if i am doing this incorrect. i did not want to start a new post and have it feel like im rubbing it in that thd magnetic duet filament sensor is unavailable....but, i have used quite a bit of time and energy just to find it out of stock for a while. can someone please invoice me brandonnorman@gmail.com for the sensor , pcb only is fine , that way i can pay now and rest easy knowing it is eventually coming and simply wait my turn to receive one....?

@phaedrux email sent .

Here is another shot with a bit of zoom.

I am not sure what I was looking for and looked beyond that mark initially because things like the 'Pin 1: Indent' threw me off.

@phaedrux

It does not but what do I know.

@phaedrux if you want a close up of something in particular let me know.

@Phaedrux the board from filastruder was their order#70861 placed on May 15.
I've been slowly finishing my printer and getting parts together and apologize its just now I am noticing and addressing this..

Thank you again for your time and assistance

@phaedrux yes of course

Here you go. It may be worth mentioning I have a bench power supply and could, per instruction only, attempt to supply the board with 3.3V directly if that is a thing. The board was purchased through Filastruder and I have only good things to say about their service.

@Phaedrux

Jk about picture 4. File too large and is very redundant as you can see the board in picture 3.
I await further instructions..

@phaedrux I decided to take thing from the beginning as I purchased the board from Tim and was advised not to miss any points and be more articulated.

The RPi4 4gb connected with USBC power and HDMI out to monitor and a usb keyboard/mouse and ethernet works just fine.

Duet 3 in standalone mode connected to a computer with a USB cable , (I also have a 60W PD Portable Charger I used to supply my laptop power simultaneously after trying on a full charge, as well as tried different micro usb cables) and no SD card yields the following LED: USB red LED between micro usb female port and microSD slot as well as 5V. No 3.3V. No matter what 3.3V is nowhere.

Following your what to do if your Duet won't respond get's me to: If the red LEDs are lit but not the green 3.3V LED then most likely there is a short between the 3.3V power rail and ground.

However, I am at the stage where I simply have a Meanwell 24V PSU hooked up to VIN and do no get 3.3V.

Attached are pictures of this:

1. Connected to Laptop, only the 2 red LED 5V and USB LED.
2. Connected to Laptop w/ Portable Charger adequate enough to charge laptop, only 2 red LED 5V and USB LED.
3. Duet 3 6HC only connected with + / - 24V Meanwell PSU
4. Clear shot of Duet 3 6HC with the same configuration as 3 just a straight shot of the board.

Also I attempted the erase jumper multiple times as per the link provided "What to do if your duet wont respond" and I cannot get it to have more than the 2 LED: 5V AND USB and it shows as surfaceucmucsihidient regardless of my appropriating the correct driver to it.
On Linux there is no /dev/ttyACM[number]

I believe there is a problem with the voltage regulator providing the 3.3V the board needs.

I am going to reply to this post with my cell phone to make it easy to post the pictures .

Please let me know if I missed any of your steps or where I should go and what I should do from here - I need to make sure i follow procedure.

Thanks for your time Duet team and wise contributors.

@phaedrux In any case there is no green LED for 3.3V ever

I have also now just tried on my Linux laptop and there is no /dev/ttyACM[number]

I am about to try the erase options....
please, please, advise.