@Jon_Bruno oh I’m the same way. I trial and error this thing into what it is today. I did populate the optional areas in LaserWeb with the M3/M5 commands in the beginning. But then I learned how G1 works and came to the conclusion I did not need M3/M5. Those commands would not have worked with my current wiring anyway now that I know my fire pin is perpetually grounded lol.
LOL!! true
How do You guys set up power levels?i mean i done all like wiring,except level shifter and i can only set up max 60% of power because this is allready 20mA,
When i use laserweb i can only use power from 10 to 60%
@Damian_Trejtowicz I set the max limit in the config file. mine is set to .8 and in Laserweb it is 1 so that the gcode generator will assign S levels from .1 up to 1 with 1 being 100% ( of the 80% max limit I set)
laser_module_maximum_power .8 # this is the maximum duty cycle that will be applied to the laser
In my case when i setup 0.8 amps meter show 30mA on 100%
It’s probably because your laser power supply is not current limited properly for your tube. I think it’s a way they cheat to make it seemore powerful but at the expense of shorter life. You’ll want to set you max duty cycle I’m the config file to limit max laser current to do.ething that you are comfortable with
@Damian_Trejtowicz You need to use the level shifter to properly control the power output.
The two wire setup requires it. The pin 1.23 is a PWM output that needs to be raised from 3.3 (MCU pin voltage) to 5v logic voltage. if you don’t use a level shifter to switch from 3.3 to 5v logic unexpected results can occur.
Hey David… when you gonna fix that wiring diagram? Laser enable should be on 2.5- not TH4- lol
@Jon_Bruno well that is actually how my working system is currently wired up at the moment :-)~
Yeah, true… but it’s not right…
You could just change it to “Tie to any available ground.”
lol
For me level shifter is not a problem because if i not get 5v i should not get 30mA on level meter
There is a difference between analog voltage and a TTL signal.
I understand this but previous power supply when level shifter was removed it was like i wrote,i was only able to get 50% of power
But i will try with level shifter
As the source 3.3v what should i use(previously i was using power pin from endstops,),as the 5v reference i was using 5v from 24v line in psu
I understand this but previous power supply when level shifter was removed it was like i wrote,i was only able to get 50% of power
But i will try with level shifter
As the source 3.3v what should i use(previously i was using power pin from endstops,),as the 5v reference i was using 5v from 24v line in psu
Are you using the MKS SBase 1.3?
I do not know what end stops you are using but I would assume you have a standard k40 which uses 5v endstops. (if MKS SBase 1.3) switch the endstop voltage jumper to 5v and use the spare V and G pins in the unpopulated endstop connectors.the 3.3v tap can be taken from the external stepper driver pins… I use E1’s 1st pin… check with a meter first should read ~3.3v (P4.29?)
I use mks sbase 1.3 and i switched jumper to 3.3v. I get 5v for endstops from tft plug
Ok. If all of your voltages are correct you should be good to go.
Update.
All done like should be and looks like my PSU is for bigger laser tube because on 100% my ampmeter is out of http://scale.in my case i get 20mA when i setup .6 as max.,or my level shifter is broken