I have cleverly put 24V into the external +5V supply on my Duet 2 wifi 1.04c while also connected to my duex5.

U11 has dramatically popped, I replaced the Duet Wifi with another I had and it also appears to have killed my SD card which no longer works and also the Duex5 which has all the heater LEDS stuck on.

I was going to replace U11 and I will probably replace U2 at the same time since it says 6V max even though I cant see any physical damage.

I was really hoping it just took out U11 & U2 but since the SD card is dead maybe it got onto the 3.3V supply too.

Is it likely the damage stopped on the 5V supply or am I wasting my time trying to repair it? I imagine if it jumped onto the 3.3V it wouldn't be worth trying to fix?.

Hi,

I find it useful for M453 to specify a minimum spindle speed as well as a maximum to control a AMB/Kress 1050 Di.

I have compiled firmware 2.04 for myself with minimum rpm added, is this something worth submitting to be included?

What would the preferred switches / syntax be, I added multiple ways to experiment.

M453 S"Spindle" P20 Q2778 R25000 F3000 I0 T0 ; Q = new minimum rpm

M453 S"Spindle" P20 R25000:2778 F3000 I0 T0 ; R[maxrpm]:[minrpm]

minimum rpm defaults to 0.0 so if its not specified the firmware acts identical to the current version and the only changes are 1 extra spindle variable, the spindle speed calculation and the M453 parsing.

Preferably I'd use M583 but perhaps I could jumper the BLTouch pin to one of the extra end stop pins on the expansion connector, I think I saw a post from you saying that the extra endstops are disabled and used for chip selects now though?

Thanks, unfortunately I get command not supported.

3:03:37 PM M583
Warning: M583 command is not supported

Otherwise it looks like what I'd like
M583 P33 R1000 S200, wait for a value of 800-1200 on pin 33.

I've had a look for pin numbering and couldn't find the pin for Z_PROBE in the wiring diagrams or using IO pins section.
I've looked at the source code for DuetNG and found
// Analogue pin numbers
constexpr Pin Z_PROBE_PIN = 33;
Is this where I should be looking for pin numbers?

Hi,

I cant get M577 to pick up my BLTouch output.

I'm running 2.02RC2(RTOS) (2018-09-07b2) on a duet wifi and I have a BLTouch probe being used as Z endstop which all works fine.

On power up I want to check the BLTouch wiring so I've created a macro to tell the BLTouch to change its output state while I test it with M577.

Looking in machine properties my Z endstop says not triggered normally and after sending the BLTouch command to set the output triggered it says the Z endstop is triggered and the Z probe changes to 1000.

M577 does not pick up the endstop changing so the macro hangs, this also happens just entering M577 into the GCode console.

Changing my macro to work using the X endstop works correctly, I've tested that it works with the endstop when its already in the triggered state in case M577 was edge triggered.

Can M577 be used with the Z probe? (S3 mentions a Zprobe)

Is there a better way to test the BLTouch on power up?

My macro (although I've narrowed it down to M577 Z S1/2/3 hanging)

M280 P3 S90 I1 ; retract probe
G4 P100 ;
M280 P3 S60 I1 ; set bltouch output 1000
G4 P100 ;
M117 wait for triggered
M577 Z S2 ; tried S1/2/3
M280 P3 S90 I1 ; retract bltouch (output 0)
G4 P100 ;
M117 wait for not triggered
M577 Z S0 ;
M117 done