Posts made by Arminas

@droftarts Thank you, it worked

@droftarts So if I want to use one of these "always on" fan pins with 24V, I have to out the jumper on?

@droftarts So if I use the heater pins for 24V supply, I also need to add a line in the config to make it allways on?

Hello!

Which pin on duet2/duex5 V0.11 I can use for an always-on 24V supply? I need this supply for a filter fan that is turned on with a physical button.

@oliof Okay I am pretty sure now that it has something to do with the mainboard or toolboard. Extruder motor gets extremely hot and then over extrusion happens. Printer is not enclosed.

@oliof Config is exactly the same, mechanical side is good, everything runs smooth and easy. Is there a way to check if the board is at fault or not?

@oliof I have new theory - maybe it's not overextrusion, but Z axis is not going down properly? I have 2 basically identical CoreXY printers. I just found out that the printer's with this "overextrusion" problem motors are getting way hotter than the other CoreXY printer's motors. Could this be an issue? And how should I validate this theory?

@droftarts I assume LDO motors are quite good, I will give it a try and see how it works. Current motors are nema23, but electronics board is Duet2. As I understand, Duet2 does not give enough current for nema23 motors, so these motors are overkill in terms of the overall electronic system? Is it safe to use 2.4A for drivers on Duet2?

Hello. Could these artifacts be related to chineese stepper motors? pitch of artifacts are less than 1 mm, maybe 0.5 mm.

@oliof Okay I will try it. But I have another printer with exact same configuration, and there are no problems.

Hello,

I have a problem with a random over-extrusion (picture below). Everything was printing great for a couple of hours and then suddenly printer started to over-extrude.. RatRig vcore 3.1 with 1LC toolboard, Duet 3 mini, RRF 3.4.6. Any ideas..?

@droftarts Is there a way I can check if the TB 1LC is actually permanently damaged or not?

@droftarts Okay, I might need some more explanation on this I have grounded the frame to the power socket's ground pin. As I was assembling the printer, there where an instructions to ground the bed to the PSU ground, and from PSU ground to power socket ground pin, so bed is grounded like per instructions.

@droftarts Okay. So as I understand, I had a short circuit due to static charge and it damaged the 1LC. I have grounded my hotend with simple wire to the printers frame. Frame is grounded. I checked the continuity between hotend and power sockets ground pin. But I still can see a spark after I touch the nozzle with tweezers. How can it be? Building's ground is not working?

@dc42 Hi. I have purchased a new TB 1LC to try to swap it and see if the problem is still there. And I noticed that one component on old and new board is different. Both boards are v1.3, both with 202305-xxx code. Could this be an issue?

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@Phaedrux @dc42 @oliof Unfortunately, I think I have recreated the main issue with my other printer with exactly the same setup.... I have touched the nozzle with tweezers and I think something shorted due to static discharge. Blower fan immediately started to blow at 100% speed instead of 20%.. And now I have "hotend offline" in my DWC...

"On the v1.3 toolboard the mounting screw holes are all grounded via 100K resistors to provide a path to ground for any static build up in the extruders, assuming the toolboard is mounted to the extruder" - so if any of 1LC mounting bolts touches the extruder motor, I can simply wire a hotend with one of the mounting bolts?

Also, am I right that I can ground hotend to any duet GND pin? I would also ground the hotend of my Modix printers, but there is no toolboard. So I would connect the wire from hotend to Duet2 Wifi ground pin.

@Phaedrux one of IO is used for BLTouch, I can't start the print without it. Maybe it's not a big deal if I leave this one connected?

@Phaedrux Blue - cold, Red - hot (I don't feel comfortable touching it more than 3 seconds). And extruder motor is very very hot

@droftarts @EasyTarget so which option is better - hotend or extruder stepper?

Would it additionally help if I would print hotend parts in ABS ESD?

Hello, I have 4 printers that makes a spark once I touch them by hand or if I touch the nozzle with tweezers. I guess it is not okay, so I am thinking where is the issue? All printers have grounded beds.