Posts made by Veti

if the tilt of your bed is to big. the probing will fail.

level your bed on the 4 corner manually so that its fairly flat. then try again.

@kotuo
are you sure that red and green are one phase?
because normally red and blue are one phase

have you updated the bootloader on the 3hc?

it might be a race condition with the initialization

https://duet3d.dozuki.com/Wiki/Updating_the_bootloader_on_Duet_3_expansion_and_tool_boards

@r123 said in possible reasons for a "short to ground" error mid print?:

they were running hot

how hot. those steppers are Insulation Class B, 130℃.
see https://www.engineeringtoolbox.com/nema-insulation-classes-d_734.html

here is a log of someone doing it. it might help anyway
https://forum.duet3d.com/topic/2890/converting-a-duet-wifi-to-a-duet-ethernet

@aconz2

60 hz is to much. you would probably cause quite a bit of load that way.

you can implement pull quite easily with existing functionality.

DWC calls http://<ip of duet>/rr_model?flags=d99fn in an interval to get those information in json.

so just write a script that gets that information in the frequency you need.

@kotuo

check the wiring on the plug with the duet connector
https://d17kynu4zpq5hy.cloudfront.net/igi/duet3d/vqBUAZPsxMC5tRgt.huge

the colour order is R B G B

you can decrease the maximum global z speed in the M208 command

like
M203 X18000.00 Y18000.00 Z18000.00 E1200.00 ; set maximum speeds (mm/min)

what filesystem did you format the sd card with?

check in a computer which filesystem you put on the sd card

what card sizes do you have?

@tia79 said in Duet 2 wifi failures:

M21: Cannot initialise SD card 0: Card is unusable

can you try a different sd card.
make sure its fat formated

@peterartechno said in BLTouch not responding to code:

M950 S0 C"exp.heater7"

the expansion board you are using inverts the signal

so change to
M950 S0 C"!exp.heater7"

if you have revision 1.04 of the duet you can try chaning the trigger logic

using
M280 P0 S140
and
M280 P0 S150

@bks31 said in 12v fan on stepdown buck! config help?:

ok i see so even on 12 or 24 v for half speed would be s127 or s.05 right both would work?

it depends on the fan. some fans dont like pwm signals and either dont change speed or refuse to run.

if deploy and retract are working then the servo part of the bltouch is working.
the trigger signal is the problem.

this is how you should wire the buck converter

https://www.blvprojects.com/blv-mgn-cube-3d-printer?pgid=k8hkwn62-378a696b-a7f1-46b5-9e6c-1290261fa468

@PRIOR123 said in New hotend fan:

I have just installed a new Noctua fan for my ender 3 using the duet wifi 2. It's all gone pretty smoothly up til now. I have put the plug into FAN1 which goes into a buck converter reducing it down to 12V then to the fan. however, FAN1 is set to come on at 45degree which doesn't seem to be happening.

the important thing is how you wired the negative terminal. if you connected that to the buck converter you can actually damage the duet. the buck converter is not mean to run on pwm.

there is a e3d reseller in argentina.
https://www.printalot.com.ar/

you can see if they sell
https://e3d-online.com/products/pt1000-temperature-sensor?_pos=1&_sid=1e8da88ec&_ss=r
its a bit more expensive, but if speed is the issue.

@UcantCNCme said in Duet 3 MB cooling via PWM fans:

May be Overkill but I'd like to use two PWM 80mm fans to cool the board under normal operation. Is it possible to control the speed of the fans directly from the duet using gcode? One fan blowing in at the bottom of the enclosure, one out at the top.

yes just configure the fans like a normal fan.
for pwm you have to invert the signal and normally use a frequency of 25000.

something like this
M950 F2 C"!fan2" Q25000 ; create fan 2 on pin !fan2 and set its frequency
M106 P2 S1 H-1 ; set fan 2 value. Thermostatic control is turned off

then use
https://duet3d.dozuki.com/Wiki/Gcode#Section_M106_Fan_On
to controll the fan via g code

If this can't be done via gcode, could I use a pc fan governor with a thermostat for control fan speed based on temperature inside the enclosure or at the probe if mounted on/near the steppe drivers on the board.

you can just use a thermistor for that. no need for a pc fan governor.