DUEX 0.11 FAN 5

paolozampini1973

Why not use a thermistor attached to the motor? Then you can also see what the motor temperature actually is to know if it's an issue or not. You're trying to make this the more complicated than necessary.

your solution is much cheaper but much more complicated and then I haven't solved all the problems. Anyway, thanks for your interest

paolozampini1973

@phaedrux said in DUEX 0.11 FAN 5:

Why not use a thermistor attached to the motor? Then you can also see what the motor temperature actually is to know if it's an issue or not. You're trying to make this the more complicated than necessary.

the simplest solution is also to leave the fans on all the time

oliof

@paolozampini1973 I cannot find PIN17 in the list of official pin names. can you point me to wjhere that is and what it's name is in the documentation? I seem to be looking in the wrong place.

oliof

OK, I did read the documentation and I believe dc42 would like you to add the following to config.g instead of a normal fan definition for fan5. Assuming this is for motor number 7:

comment out the following lines from your config.g (lines 90 and 91):

M950 F5 C"duex.fan5" Q500                            ; X create fan 1 on pin fan1 and set its frequency
M106 P5 S1 H-1                                       ; set fan 1 value. Thermostatic control is turned on

make it that they look like this

; M950 F5 C"duex.fan5" Q500                            ; X create fan 1 on pin fan1 and set its frequency
; M106 P5 S1 H-1                                       ; set fan 1 value. Thermostatic control is turned on

then, add the following line to your config.g (assuming driver 7):

M569.7 P0.7 C"duex.fan5"

restart your machine, make a move that uses motor 7. if the fan turns on while the motor is active, this setting works. If the fan is on when the motor is inactive and turns off when motor 7 works, change the M569.7 like this:

M569.7 P0.7 C"!fan0"

Note that this will always turn the fan on fully and that I have not tested this function myself.

paolozampini1973

@oliof said in DUEX 0.11 FAN 5:

M569.7 P0.7 C"duex.fan5"

30/4/2022, 18:38:03 M569.7 P0.7 C"fan5"
Warning: M569.7: Command is not supported

30/4/2022, 18:37:12 M569.7 P0.7 C"duex.fan5"
Warning: M569.7: Command is not supported

Thanks for your reply but the command is not supported

dc42

@paolozampini1973 from my original post:

I think you can do that in RRF 3.4.0 by pretending that the fan is a motor brake solenoid.

paolozampini1973

@dc42 said in DUEX 0.11 FAN 5:

@paolozampini1973 from my original post:

I think you can do that in RRF 3.4.0 by pretending that the fan is a motor brake solenoid.

so i should upgrade
The problem is that with my configuration I don't know what it means to me at What problems do I run into after what changes I have to make

am have RRF 3.3.0

paolozampini1973

@dc42 said in DUEX 0.11 FAN 5:

@paolozampini1973 from my original post:

I think you can do that in RRF 3.4.0 by pretending that the fan is a motor brake solenoid.

my 3D printer now works very well however if I do the upgrade What are the changes I have to do next ?

oliof

@paolozampini1973 read the upgrade notes and make any required updates to your configuration: https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x#reprapfirmware-340

Other than adding macros for heater fault I did not change a single thing on my machine, but yours is different and may need adjusting.

paolozampini1973

@oliof said in DUEX 0.11 FAN 5:

@paolozampini1973 read the upgrade notes and make any required updates to your configuration: https://github.com/Duet3D/RepRapFirmware/wiki/Changelog-RRF-3.x#reprapfirmware-340

Other than adding macros for heater fault I did not change a single thing on my machine, but yours is different and may need adjusting.

Ok I will read And anyway I will make a complete backup of the memory in case I should have problems I can go back

oliof

@paolozampini1973 backups are always a good idea. I have my configurations under version control and stored on github for easy reference and to make sure that in the case of local catastrophe I have a copy available elsewhere.

paolozampini1973

@oliof said in DUEX 0.11 FAN 5:

@paolozampini1973 backups are always a good idea. I have my configurations under version control and stored on github for easy reference and to make sure that in the case of local catastrophe I have a copy available elsewhere.

I'll probably do this upgrade tomorrow as temperatures and speeds improve what your opinion is ?

oliof

I am running my printers very conservatively, so I do not go for maximum speed.

paolozampini1973

@oliof said in DUEX 0.11 FAN 5:

I am running my printers very conservatively, so I do not go for maximum speed.

I believe that a printer once that makes 70 - 80 mm is more than enough important to have the accuracy is the quality

paolozampini1973

@oliof said in DUEX 0.11 FAN 5:

I am running my printers very conservatively, so I do not go for maximum speed.

Ultimaker Cura Enterprise 4.10.0 I don't know if you've ever tried it but the prints are much higher quality and the processing takes about 20% less

paolozampini1973

@oliof I wanted to ask you but there is an algorithmic auto for temperatures because I don't like the one I have at all I would like that there would be an algorithmic auto that, based on the temperature that rises and falls, the rule automatically

oliof

I don't fully understand your request. Is this still about the fan to cool the stepper, or some other issue?

paolozampini1973

@oliof said in DUEX 0.11 FAN 5:

I don't fully understand your request. Is this still about the fan to cool the stepper, or some other issue?

M307 H1 R2.300 C135.000:111.161 D12.60 S1.00 V25.0 B0 I0
I do not speak the regulation of the nozzle temperature I now have an algorithm that I created that is stable but when I suddenly increase the speed the temperature drops by 2 degrees even by degrees

paolozampini1973

@oliof temperature excursion exceeded 15.0°C this parameter can be changed instead of 15 degrees to have 20 degrees ?

oliof

@paolozampini1973 after you update to 3.4, you can try heater feedforward https://docs.duet3d.com/en/User_manual/Reference/Gcodes#m309-set-or-report-heater-feedforward which raises the heater power for higher speed prints.
Alternately you can adjust the heater fault detection using M570 https://docs.duet3d.com/User_manual/Reference/Gcodes#m570-configure-heater-fault-detection but since this is a critical safety feature I would only use this as a last resort. It does allow you to adjust the excursion limit as you requested.