Hi everyone!
Here is the hook up

Here is the config.g:
; General preferences

G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M667 S1 ; Select CoreXY mode
G21 ; milimeter Mode

; Network
M550 PLaserMk1 ; Set machine name
M551 Pabcd1234 ; Set password

M587 S"XXXXXXXX" P"xxxxxxxx" ; Configure access point. You can delete this line once connected
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S0 ; Drive 0 goes BACKWARDS (X)
M569 P1 S0 ; Drive 1 goes BACKWARDS (Y)
M584 X0 Y1 ; Drive 0-X 1-Y
M350 X16 Y16 I1 ; Configure microstepping with interpolation(I=1) (x16 from 16)
M92 X80 Y80 ; microstep 16 Interpol 256
M201 X1000 Y1000 ; Max Accerlation (mm/min)
M203 X24000 Y24000 ; Maximum speeds (mm/min)
M566 X1200 Y1200 ; jerk values
M906 X900 Y900 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S50 ; Set idle timeout

; Axis Limits
M208 X0 Y0 S1 ; Set axis min
M208 X220 Y210 S0 ; Set axis max

; Endstops
M574 X1 S1 ; Set active High endstops (S1=SENSORED) (X-MIN(1)) (S3=SENSORLESS)
M574 Y1 S1 ; Set active High endstops (S1=SENSORED) (Y-MAX(2)) (S3=SENSORLESS)

; LASER SETTINGS

M307 H6 A-1 C-1 D-1 ; Clear Heater 6
M452 P6 R255 F200 S0 I1 ; switch to laser mode using Heater 6 PWM to control the laser

; Tools

G10 P0 X0 Y0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
M563 P0 H6 ; Define tool 0 uses Heater6

; Automatic saving after power loss is not enabled

; Custom settings are not configured

; Miscellaneous
M501 ; Load saved parameters from non-volatile memory
T0 ; Select first tool

Having some problem with setting my Duetwifi Laser engraver... can anyone give me some pointers?

• laser is connected to a mosfet then put on Fan 0
• laser can fire on S106 S0 (The on/off is inverse)
• I can home X and Y... but there is No Z... how can I set it up without Z?
• What is a good software to make gcode? I am trying to use lightburn, but seems it doesn't work yet?? (maybe because there is no Z)
  Any help is really appreciated! thanks!

Here is my config.g:

; General preferences

G90 ; Send absolute coordinates...

M83 ; ...but relative extruder moves

M667 S1 ; Select CoreXY mode

; Network

M550 PLaserMk1 ; Set machine name

M551 Pxxxxxxxx ; Set password

M552 S1 ; Enable network

M587 S"XXXXXXXX" P"XXXXXXXX" ; Configure access point. You can delete this line once connected

M586 P0 S1 ; Enable HTTP

M586 P1 S0 ; Disable FTP

M586 P2 S0 ; Disable Telnet

; Drives

M569 P0 S1 ; Drive 0 goes BACKWARDS (X)

M569 P1 S1 ; Drive 1 goes BACKWARDS (Y)

M584 X0 Y1 ; Drive 0-X 1-Y

M350 X16 Y16 I1 ; Configure microstepping with interpolation(I=1) (x16 from 16)

M92 X80 Y80 ; microstep 16 Interpol 256

M201 X1000 Y1000

M203 X24000 Y24000 ; Maximum speeds (mm/min)

M566 X1200 Y1200 ; jerk values

M906 X900 Y900 I30 ; Set motor currents (mA) and motor idle factor in per cent

M84 S50 ; Set idle timeout

; Axis Limits

M208 X0 Y0 S1 ; Set axis min

M208 X200 Y200 S0 ; Set axis max

; Endstops

M574 X1 S1 ; Set active High endstops (S1=SENSORED) (X-MIN(1)) (S3=SENSORLESS)

M574 Y1 S1 ; Set active High endstops (S1=SENSORED) (Y-MIN(1)) (S3=SENSORLESS)

; Fans/Lazer

;M106 P0 S255 I1 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off

; Tools

M563 P0 F0 ; Define tool 0 (P0=tool 0, D0=Extruder0, H1=Heater1, F0=Fan0)

G10 P0 X0 Y0 ; Set tool 0 axis offsets

G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C

; Automatic saving after power loss is not enabled

; Custom settings are not configured

; Miscellaneous

M501 ; Load saved parameters from non-volatile memory

T0 ; Select first tool

M555 P2 ; Marlin Compat

Dear Dc42,

Thanks! I have added M452 and now G1 S255 xxxxxx will turn on while cutting..
It is still connect to Fan0 Port

M106 P0 S255 I1 H-1 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned off

M452 P20 R255 F200 ; switch to laser mode using the Fan0 (20pin logical port) output pins to control the laser

I have a few questions:

1. How to do I know the appropriate pwm frequencies? (F200?)
2. I noticed that on lower G1 S# xxxx that the laser is not turn on? (or so weak I cannot see any etches at all?) is there a min # to set? is it set on M106 Lxx??
3. any pointers to have a good etch? as I see some areas have very light and some are charred

Reinstalled Inkscape again and used @keyz182 's extension and it worked!

Here is the result of last night's test (ignore the previous burn marks on the left corners)

0_1560474757873_Test8_BWfix_128_.gcode

@bearer
So maybe I should change F200 to any other number? Spec said 0-15000
So set it to 15000 and try again?
Or R255 to R15000?

@EasyTarget
Noted I too think maybe it ttl not accept pwm
I am getting ttl to pwm convertor (elekmaker ttl to pwm) to see if this will fix the problem

Anyone hooked this up before?
[link text]https://a.aliexpress.com/_s8wCcG(link url)

Hi everyone!
Here is the hook up

Here is the config.g:
; General preferences

G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
M667 S1 ; Select CoreXY mode
G21 ; milimeter Mode

; Network
M550 PLaserMk1 ; Set machine name
M551 Pabcd1234 ; Set password

M587 S"XXXXXXXX" P"xxxxxxxx" ; Configure access point. You can delete this line once connected
M552 S1 ; Enable network
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet

; Drives
M569 P0 S0 ; Drive 0 goes BACKWARDS (X)
M569 P1 S0 ; Drive 1 goes BACKWARDS (Y)
M584 X0 Y1 ; Drive 0-X 1-Y
M350 X16 Y16 I1 ; Configure microstepping with interpolation(I=1) (x16 from 16)
M92 X80 Y80 ; microstep 16 Interpol 256
M201 X1000 Y1000 ; Max Accerlation (mm/min)
M203 X24000 Y24000 ; Maximum speeds (mm/min)
M566 X1200 Y1200 ; jerk values
M906 X900 Y900 I30 ; Set motor currents (mA) and motor idle factor in per cent
M84 S50 ; Set idle timeout

; Axis Limits
M208 X0 Y0 S1 ; Set axis min
M208 X220 Y210 S0 ; Set axis max

; Endstops
M574 X1 S1 ; Set active High endstops (S1=SENSORED) (X-MIN(1)) (S3=SENSORLESS)
M574 Y1 S1 ; Set active High endstops (S1=SENSORED) (Y-MAX(2)) (S3=SENSORLESS)

; LASER SETTINGS

M307 H6 A-1 C-1 D-1 ; Clear Heater 6
M452 P6 R255 F200 S0 I1 ; switch to laser mode using Heater 6 PWM to control the laser

; Tools

G10 P0 X0 Y0 ; Set tool 0 axis offsets
G10 P0 R0 S0 ; Set initial tool 0 active and standby temperatures to 0C
M563 P0 H6 ; Define tool 0 uses Heater6

; Automatic saving after power loss is not enabled

; Custom settings are not configured

; Miscellaneous
M501 ; Load saved parameters from non-volatile memory
T0 ; Select first tool

@otaku521 said in Laser Questions: How to focus len with it firing low power?:

M42 P6 S10

yes it works! thanks!
but I need to have it set M42 P6 S255 in order to work.... any other value the laser is off...
how come?

hrmmm.... since I am heater 6... so this means:
M42 P6 S10
would fire the laser on low power (hopefully..)
I did read somewhere on the forum that you can not fire without moving...
they said made a macro for it.. but Don't know how....
Would you or anyone kindly share how?

thanks
Tony

Finally I got my laser fired up (2 pin PWM+ 2 pin 12v power) using heater 6 on the expansion board (via 2.05 firmware)
Doing a test print on inkscape via 306 engineering raster to gcode plugin... just printing "ABCDEF"
I noticed that:

1. firing is very spotty across the row- it doesn't look like letters - could this be focus?
   a) If so, what is the gcode to have the laser turn on at 1% (or low power) so I can make focus adjustment?? tried M3 S10 and it didn't fire, but while doing G1 X100 S100 it does move and fire...
   tried it with sticky M457's S1 sticky ... still no good
2. if it is not focus issue - can anyone please advise me?
3. I have tried lightburn - cannot find save gcode using smoothieware or marlin as profile?

Tony

Could anyone help pls
I can’t get the laser to fire

Dear everyone,
is the above correct? (wiring and config)
much appreciated

Thx
Tony

@dc42 updated wiring

@yaman
mind sharing your laser part of your config.g? are u running on the expansion board? I am trying to mine to work... but my laser have 2 pin 12v and 2 pin ttl... dont know how to plug this up (heater 7 pwn and gnd?)