Kossel Delta xxl build project HELP

I finally have time to check the connections,plugs and power supply. I put the probes on the power supply voltage output and the reading is 23.9v - 24v , then I turned on the hotend heater to 180°C and the bed to 60°C. The voltage stay at 24V with no fluctuations. At 152°C the fault message turned off only the hotend ,the bed is 60°C constant and power supply output voltage is 24V.

I just got home and I run the PID tuning on my hotend heater. I run M303 H1 with no P parameter. Auto tune cancelled because target temperature was not reached. Please see the attachment for results. When I run the test I have the silicone sock on the heater block . The temperature on the bed was 21.4°C and the extruder temperature was 21°C. What should I change in order to have a successful tuning ?

Edited 4 time(s). Last edit at 01/04/2021 08:39AM by alex773.

I run again today the test with this command : M303 H1 P1 S200 and I got the same results. Auto tune cancelled because target temperature was not reached. I'm doing something wrong or something else is not right ? When I start the test the temperature on the bed was 21.7°C and the extruder temperature was 17.9°C. I don't know why I have this big difference between.

Edited 1 time(s). Last edit at 01/04/2021 12:16PM by alex773.

Maybe the thermistor is different? I’d double check you have the right settings for it in config.g

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The new thermistor is a PT100 like the old one. In config.g I have : M305 P1 X200 ; Configure PT100 for heater 1 and M143 H1 S320. This are the settings what I have at the beginning

If I’m reading the docs right, it looks like you don’t need the X parameter in your M305. The way I’m reading it is you’re telling it to set as sensor 1, but use a virtual heater channel of 200. Maybe dc can chime in on that, but I don’t think you need X200

Edit: Oh, I missed PT100. So you have a daughterboard in there, hence the need for the X parameter. Maybe the daughterboard is the issue?

Edited 1 time(s). Last edit at 01/04/2021 12:56PM by blt3dp.

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I checked the connections for the daughterboard and they look ok but I found the plug from thermistor to the smart effector it was loose. Finally after I pushed the plug in the reading is the same on the bed and extruder. Then I run the test again with M303 H1 and I got the same result. Temperature was not reached. I don't know what should I do to get my printer back the way it was.

Please see the attachment for the last results.

This is what I have right now on Config.g :
M307 H1 A635.2 C343.6 D4.4 V24.2 B0
I will replace the M307 command with the new tune results :
M307 H1 A387.8 C405.9 D2.3 V24.1 B0
If you see something wrong please let me know, I don't want to do any mistakes. Thank you

Edited 1 time(s). Last edit at 01/04/2021 06:57PM by alex773.

It looks like the gain of the hot end heater has reduced and the cooling rate has increased. Were you perhaps tuning the hot end with the print cooling fan off last time, and on this time?

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

The print cooling fan was off all the time . After the tuning I let the hot end heater to go down to 23°C then I heat it up to 280°C to tighten the nozzle. I had the silicone sock on the nozzle but the temperature was not going up more than 265°C . I don't know what is wrong. Thank you David

What is the hot end temperature limit set to? Send M143 H1 to check it.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

I do remember that the limit for temperature for the hot end heater in Config.g is set to 320°C. I will check. Thank you

I run the M143 H1 with this result : Temperature protection item 1 is configured for heater 1 and supervises heater 1 to generate a heater fault if the temperature exceeds 320.0°C

I just looked at your tuning results again and it appears that the heater power is too low to reach the target 200C. That points to a bad heater cartridge, bad connection, or low power supply voltage. It could also mean that the temperature sensor is greatly under-reading, however that should not be the case if you are using a PT100 sensor and you get the correct reading at room temperature.

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Large delta printer [miscsolutions.wordpress.com], E3D tool changer, Robotdigg SCARA printer, Crane Quad and Ormerod

Disclosure: I design Duet electronics and work on RepRapFirmware, [duet3d.com].

I don't know from where to start. I installed yesterday a new PT100. Right now the readings for temperature is 21.8°C for bed and 17.9°C for hot end. I checked the wiring from smart effector to Duet and to the daughterboard and everything looks good. I tried last night a print and it looks like the filament is very, very hot, melted, and extremely stringing with the same settings what I have before. I don't know where to look and what to do. I think the bed temperature reading is right and I don't know why the hot end temperature is so low. The heater cartridge is new , also. I checked the power supply by putting the probes on the output voltage wires that are going to the Duet and I turned on the bed to 60°C and the hot end to 180°C and the voltage stay at 24V with no fluctuations.

Edited 1 time(s). Last edit at 01/06/2021 08:31AM by alex773.

This is what I did in this morning. Here you go. I unscrewed the 4 wires from the channel 1 on the daughterboead and I place the 100 Ohm resistor to terminals 2 and 3 and then fit the 2 jumpers as for 2-wire PT100 sensor. The reading for the hot end it was -3.9°C. Than I installed the 4 wires in the number 2 channel on the daughterboard and In the Config.g I changed the M305 P1 X200 with M305 P1 X201. Now, the reading for the hot end is 23°C and for the bed is 22°C. I finally run the M303 H1 and this are the results. Please see the attachment. Please advise me what to do next. Thank you

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