Revo 6 PID tuning just hangs

wingtip · 23 Oct 2022, 17:04

; config.g
; executed by the firmware on start-up

; general preferences

G90 ; send absolute coordinates...
M83 ; ...but relative extruder moves
M550 P"The Big One" ; set printer name

; communications

M552 S1 ; enable network
M586 P0 S1 ; enable HTTP
M586 P1 S0 ; disable FTP
M586 P2 S0 ; disable Telnet
M575 P1 S1 B57600 ; enable support for PanelDue

; drives

M569 P0 S0 ; physical drive 0 goes reverse
M569 P1 S0 ; physical drive 1 goes reverse
M569 P2 S1 ; physical drive 2 goes forwards
M569 P3 S0 ; physical drive 3 goes reverse
M569 P4 S1 ; physical drive 4 goes forwards
M569 P5 S0 ; physical drive 5 goes reverse

M584 X0:3 Y1 Z2:5 E4 ; set drive mapping

M92 X391.113 Y78.812 Z392.117 E397.022 ; set steps per mm
M203 X4000 Y4000 Z800 E6000 ; set maximum speeds (mm/min)
M566 X300 Y300 Z180 E3000 P1 ; set maximum instantaneous speed changes (mm/min)
M201 X700 Y700 Z200 E3000 ; set accelerations (mm/s^2)
M906 X1400 Y1000 Z700 E1000 I30 ; set motor currents (mA) and motor idle factor in per cent

M84 S30 ; set idle timeout

M350 X16 Y16 Z16 E16 I1 ; configure microstepping with interpolation

; axis limits

M208 X0:655 Y0:440 Z0:400 ; set axes min/max

; endstops

M574 X1 S1 P"!xstop+!e0stop" ; configure active-high endstops for low end on X
M574 Y1 S1 P"!ystop" ; configure active-high endstop for low end on Y

; Z probe

M98 P"probe_config.g" ; configure Z probe by invoking gcode file

; bed heater

M308 S0 P"bedtemp" Y"thermistor" T100000 B3950 ; configure sensor 0 as thermistor on pin bedtemp
M950 H0 C"bedheat" T0 ; create bed heater output on bedheat and map it to sensor 0
M307 H0 R0.257 C549.0 D2.37 S1.00 ; disable bang-bang mode for the bed heater and set PWM limit
M140 H0 ; map heated bed to heater 0
M143 H0 S120 ; set temperature limit for heater 0

; tool heater

M308 S1 P"e1temp" Y"thermistor" T100000 B4725 C7.060000e-8 ; define E1 temperature sensor (old v6 value C7.06e-8)
M950 H1 C"e1heat" T1 ; create nozzle heater output on e0heat and map it to sensor 1
M307 H1 R1.350 K0.427:0.039 D6.10 E1.35 S1.00 B0 V11.6 ; disable bang-bang mode for heater and set PWM limit, (pidm303t0s236 not t1)
M143 H1 S280 ; set temperature limit for heater 1

; part cooling fan

M950 F0 C"fan0" Q500 ; create fan 0 on pin fan0 and set its frequency
M106 P0 S0 H-1 ; set fan 0 value. Thermostatic control is turned off

; tool cooling fan

M950 F1 C"fan1" Q500 ; create fan 1 on pin fan1 and set its frequency
M106 P1 S1 H1 T45 ; set fan 1 value. Thermostatic control is turned on

; tool 0

M563 P0 D0 H1 F0 ; define tool 0
G10 P0 X0 Y0 Z0 ; set tool axis offsets
G10 P0 R0 S0 ; set tool active and standby temperatures
T0 ; set tool active

wingtip · 23 Oct 2022, 17:05

@wingtip

; probe_config.g
; called to configure Z probe

M950 S0 C"duex.pwm3" ; create servo pin 0 for BLTouch

M558 P9 C"^zprobe.in" H5 F150 T6000 ; set Z probe type to BLTouch and the dive height and speeds

G31 P500 X0 Y35 Z1.95 ; set Z probe trigger value, offsets and trigger height

wingtip · 23 Oct 2022, 17:07

@Phaedrux

M98 P"config.g"
HTTP is enabled on port 80
FTP is disabled
TELNET is disabled

Phaedrux · 23 Oct 2022, 17:26

And you're sure the heater is connected to e1heat?

wingtip · 23 Oct 2022, 17:33

@Phaedrux

I will re verify, however, nothing has changed as this config g had been working just fine. it just sat for close to a year since i last printed and all i changed was updating the firmware and replace the v6 with a revo 6. it was almost just plug and play. i only had to install a xt 30 connector to the heater cable and it does show continuity through the coil at that connector. its when i went to try to pid tune that things just decided to causing grief...

Phaedrux · 23 Oct 2022, 17:34

Does the LED near the heater output light up when you turn on the heater to a set temp?

Phaedrux · 23 Oct 2022, 17:35

We could also switch to another heater output incase it's the heater mosfet that has failed. If it still doesn't work that would mean it's either the heater itself or the cable in between.

Phaedrux · 23 Oct 2022, 17:36

Does the temp displayed increase if you warm it up with your hands or a heat gun?

wingtip · 23 Oct 2022, 17:44

@Phaedrux said in Revo 6 PID tuning just hangs:

And you're sure the heater is connected to e1heat?

Yes, it is connected to E1 on the board

yes the led lights up.

let me find my heat gun

wingtip · 23 Oct 2022, 17:49

@wingtip

panel due displayed 19.5 c room temp. I put the heat gun to the nozzle area and then checked the panel due and it then showed 40.3c so the thermistor is working properly it seems.

deckingman · 23 Oct 2022, 18:05

@wingtip So what happens if you simply try heating the tool. i.e set the active temperature to something other than zero - say 50 deg C or so? Does it try to heat then?

wingtip · 23 Oct 2022, 18:27

@deckingman said in Revo 6 PID tuning just hangs:

@wingtip So what happens if you simply try heating the tool. i.e set the active temperature to something other than zero - say 50 deg C or so? Does it try to heat then?

does nothing

Phaedrux · 23 Oct 2022, 18:47

@wingtip Can you check the e1heat terminals with a multimeter? Is it putting out 12v when a temp is set and the LED is on?

wingtip · 23 Oct 2022, 19:02

@Phaedrux

lol, ive said a few times that ive verified its putting out 12 volts at the connector at the hotend when i do the pid command with a multimeter, at least till it cancels itself a minute later saying temp not rising... which makes no sense. so if its sending 12volts to the connector at the hotend, its definately got it at the mainboard, then when it cancels, it goes back to zero vdc. I will re verify though.
Im starting to guess that you guys are gettings about as stumped as i am
EDIT: ok i think this printer is possessed ... I went to re verify the voltages from the mainboard.

placed volltmeter leads on the board terminals, reached over to the panel due and set a temp of something around 60 or 70c and it kicked on, where it wasnt kicking on before. then i looked at the voltage, it was 10.5 volts this time.

2, i killed the temps. went to console on the panel due and entered m303 h1 s236 as before and ill be da**&&ed if it wasnt taking off and climbing, but again, showing only 10.5 volts on the meter. Will let it try to continue the tuning but im going to estimate that it will hang again on the cooldown/settling. Will let you know in a bit i guess

wingtip · 23 Oct 2022, 19:24

@wingtip

here is a screenshot from the dwc, it doesnt show the m303 command when i entered it on the panel due but the blue line indicates where the tuning command was entered... you can see that before it failed, and now it completed.... this is confusing as all hell.....

Phaedrux · 23 Oct 2022, 19:50

Is your heater cartridge 24v or something?

Do you see any change in temps reported?

What voltage are you reading from your power supply output? Does it have an adjustment pot?

wingtip · 23 Oct 2022, 19:55

@Phaedrux

again its the 12volt version of the revo.. but since it completed the tuning i entered the results to the config file, heated up the nozzle, inserted some filament and was throwing together a quick 20mm calibration cube file with the new nozzle settings etc and while doing that i got this:

deckingman · 23 Oct 2022, 19:56

@wingtip said in Revo 6 PID tuning just hangs:

@deckingman said in Revo 6 PID tuning just hangs:

@wingtip So what happens if you simply try heating the tool. i.e set the active temperature to something other than zero - say 50 deg C or so? Does it try to heat then?

does nothing

So it did not heat when commanded to do so. There are only two possible reasons that I can think of. Either there was no voltage on the heater due to a wiring fault, or the heater itself is faulty. The fact that it does now heat up, shows the fault to be intermittent and that is more likely to be a bad connection than a faulty heater ( but it's not impossible that it is a faulty heater).

If I were you, I would concentrate on getting the heater to work consistently - i.e. to always heat the hot end when an active temperature is set. There is no point in trying to PID tune it until that is fixed. You can forget about any configuration issues - it would never work if there was something amiss there. Also, you can forget about the temperature sensor as that seems to be working as it should. I would concentrate on tracking down a broken wire or faulty crimp connector on the heater itself.

wingtip · 23 Oct 2022, 20:00

@Phaedrux said in Revo 6 PID tuning just hangs:

What voltage are you reading from your power supply output? Does it have an adjustment pot?

Just measured the voltage at the board input and its right at 12 volts, which is coming from a 1000 watt ATX power supply.

im just spit balling here but i think the 10.5 volts has to do with the revo. I recall reading info and seeing is some videos like from thomas salander that the revo changes the voltage as it heats up to use less power as it gets near the set temp if i am remembering correctly... maybe thats why i saw the lower reading..

Phaedrux · 23 Oct 2022, 20:14

That could be, yes. That's why I asked to check the terminals.

So it has now tuned successfully and has heated up but threw a fault?

What command did you use to tune? What were the results? Did you save them with M500 and have M501 in your config.g at the end to load them?