Tuning nozzle heater cartdrige

peirof

Hi,

I'm wrong, and install a 12v, when I'm using it at 24v. Then try Tuning the Nozzle Heating … and give me and error .... Normal

After this I have changed the heater cartridge for a 24v .... but, when I try to adjust it, with M303, I can not get it, since it seems, it is set for one of 12v, and does not let it adjust for one of 24 ...

So I thought:
A- Set some standard values for the Nozzle heater cartridge
B- Do an autotuning .....

At this point I get 2 problems:
1- I do not know what normal values are for the M307 command ... and where they are saved in config.g
2- I do not see any M307 command in my config.g, I only see one M301 command that refers to the hot bed.

I need instructions to proceed to perform the adjustment of the Nozzle heating cartridge.

Thank you

peirof

i have try to tunning nozzle heater, with a low temperature, for start point… but i cant

[[language]]
18:00:24   M303 H2 S100
Auto tuning heater 2 using target temperature 100.0°C and PWM 1.00 - do not leave printer unattended

results

[[language]]
18:04:17   Warning: Auto tune of heater 2 failed due to bad curve fit (G=80.7, tc=210.0, td=-inf)
18:01:04   Auto tune phase 3, peak temperature was 173.4
18:00:43   Auto tune phase 2, heater off
18:00:30   Auto tune phase 1, heater on
18:00:24   M303 H2 S100
Auto tuning heater 2 using target temperature 100.0°C and PWM 1.00 - do not leave printer unattended

dc42

Something isn't right. You asked for a peak temperature of 100C but it overshot to 173C which suggests an overpowered heater (e.g. 12V cartridge running on 24V). But the G=80 figure suggests the exact opposite.

Which firmware version are you using?

I suggest you try running M303 again, but this time try S200 and P0.5.

After a successful heater tuning, you can save the corresponding M307 command to config-override.g by sending M500.

peirof

Hi,

i am using 1.21Rc3….

There is some form of check if heater cartdrige is 12v or 24v?

Maybe a termistor malfuntion....? to much presure in fixing screw to heater block?

later try...

dc42

To check whether a heater cartridge is 12V or 24V, measure its resistance. See step 9 at https://e3d-online.dozuki.com/Guide/V6+Assembly/6?lang=en.

peirof

Hi…

solved....

the screw that holds the thermistor to the hot block, it was very tight .... when loosening it, it has started to work well ...

Thanks for the help, it has put me on the way