Laser that worked in the past and should work, but doesn't
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I have an odd problem with a pure chinesium 5W laser that doesn't even have a TTL controller circuit (I control the power via PWM on the Vcc/GND cables).
I have a Duet Maestro that used to control a Hypercube Evo @12V, now upgraded to a HEVOrt @24V, when it still was a HEvo I controlled the laser via the second hotend terminals on the Maestro using the following config:
M307 H2 A-1 C-1 D-1 ; Disable Heater output on H2 M452 P2 R255 F2000 ; Enable Laser mode, on output 2 (heater 2), with max intensity being 255, and a PWM frequency of 2000 M563 P1 S"Laser" ; Define tool 1And it all worked just fine, I engraved many wooden things.
But after I upgraded to a HEVOrt @24V (I still power the laser with 12V) the laser doesn't turn on anymore.
At first I tried with an SSR connected to a 12V mini PSU controlled by the Maestro's second hotend terminals, but nothing, so I tried to connect the laser directly to the 12V PSU and it turns on, I tired to switch the 2 SSR's control cables (maybe I put them in reverse) but nothing, I then deactivated the automatic power saving and I brought the main PSU's voltage to 12V (it's a 0~24V PSU that can be set via a potentiometer) and I tried to power directly the laser with the Maestro (it worked in the past) and... nothing... =(Then I checked if the second hotend exit was burned: I moved the hotend cables from the first terminals to the second (and I brought th voltage back to 24V) and the second exit works just fine since the hotend's temperature raises.
I then connected again the laser directly to the 12V PSU and it works (so I didn't burn it).Now: the 24V PSU is not the problem since it can power a 300x300 DC heatbed and a 30W hotend at the same time without problems, so a tiny 5W laser is nothing, so: WTF?
My config now is this:
; Drives M584 X0 Y1 Z2:4 U4 E3 P3 ; Dual Z M569 P0 S0 D3 V100 ; Drive 0 goes backwards Stealthchop M569 P1 S1 D3 V100 ; Drive 1 goes forwards Stealthchop M569 P2 S0 D2 ; Drive 2 goes forwards Spreadcycle M569 P3 S1 D2 ; Drive 3 goes forwards Spreadcycle M569 P4 S0 D2 ; Drive 4 goes forwards Spreadcycle M350 X32 Y32 Z16 U16 E16 I1 ; Configure microstepping with interpolation M92 X320.80 Y320.80 Z800.00 U800.00 E400.00 ; Set steps per mm (E409 @ 16 steps, in teoria... X160.00 Y160.00 Z1600.00) M566 X900.00 Y900.00 Z12.00 U12.00 E120.00 ; Set maximum instantaneous speed changes (mm/min) M203 X1800.00 Y1800.00 Z240.00 U240.00 E900.00 ; Set maximum speeds (mm/min) M201 X3000.00 Y3000.00 Z50.00 U50.00 E3000.004 ; Set accelerations (mm/s^2) M906 X1000.00 Y1000.00 Z1200.00 U1200.00 E1000.00 I30 ; Set motor currents (mA) and motor idle factor in per cent M84 S30 ; Set idle timeout ; Axis Limits M208 X-15 Y0 Z0 S1 ; Set axis minima M208 X300 Y300 Z260 S0 ; Set axis maxima ; Endstops M574 X1 Y1 S1 ; Set active high endstops ; Z-Probe M574 Z1 U1 S2 ; Set endstops controlled by probe M558 P9 H3 F120 T6000 A1 ; Set Z probe type to bltouch and the dive height + speeds, one time(s) G31 P500 X60 Y-45 Z2.50 ; Set Z probe trigger value, offset and trigger height; valore basso per il piatto più distante, valore alto per piatto più vicino M557 X20:280 Y40:230 S20 ; Define mesh grid ; Heaters M307 H0 B0 S1.00 ; Disable bang-bang mode for the bed heater and set PWM limit M305 P0 T100000 B4138 R2200 ; Set thermistor + ADC parameters for heater 0 M143 H0 S120 ; Set temperature limit for heater 0 to 120C M305 P1 T100000 B4138 R2200 ; Set thermistor + ADC parameters for heater 1 M143 H1 S290 ; Set temperature limit for heater 1 to 290C ; Fans M106 P0 S0.0 I0 F35000 H-1 C"Stampante" ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off M106 P1 S1.0 I0 F35000 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on M106 P2 S0.0 I0 F35000 H-1 C"Pezzo" ; Set fan 2 value, PWM signal inversion and frequency. Thermostatic control is turned off ; Tools M563 P0 S"Hemera" D0 H1 F2 ; Define tool 0 G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C M307 H2 A-1 C-1 D-1 ; Disable Heater output on H2 M452 P2 R255 F2000 ; Enable Laser mode, on output 2 (heater 2), with max intensity being 255, and a PWM frequency of 2000 M563 P1 S"Laser" ; Define tool 1 ; Automatic power saving M911 S22 R23 P"M913 X0 Y0 G91 M83 G1 Z3 E-5 F1000" ; Set voltage thresholds and actions to run on power loss ; Filament Sensor M591 D0 P1 C3 S1 ; Set switch filament sensor to E0, active low, E0 stop ; Custom settings are not configured M570 H1 S120 ; Set heater fault detection M501 ; Load config-override.g(I still don't have an expansion board so I can't control 3 Z motors independently)
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@o_lampe Nope: still with 2.05
Maybe when it worked I used a previous version of RRF, but I'm not sure.
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@mr-yod said in Laser that worked in the past and should work, but doesn't:
@o_lampe Nope: still with 2.05
Maybe when it worked I used a previous version of RRF, but I'm not sure.
Disclaimer: I know that I upgraded from a previous version to the 2.05, what I'm not sure about is if I used or not the laser after the firmware upgrade.
