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laser newbie

Posted: Tue Mar 24, 2020 5:59 am
by Jan.vanderlinden
John,
I just got my JTech 7 watt hooked up.
Here are my problems.
1) how do I control the power output?
I want to set it to its lowest power so I can set my X Y zero position.
2) When I sent a test picture to the controller and hit the start, The only thing that happens is my Z starts moving down. (thank god for the Estop button)
I must be missing some tutorial someplace.

Re: laser newbie

Posted: Tue Mar 24, 2020 6:36 am
by Picengraver
Jan,
First, with PicSender set to 'Spindle' mode, manually jog your Z height to where you want it and click the blue 'Zero Z' button.
Then you must switch grbl to laser mode. To do this:
Click the yellow GRBL button and check the 'Use Auto Settings' check box on the Grbl set up screen.
Then, click click on one of the two laser mode options. For images this will be 'Laser Raster'. This will allow PicSender to set grbl to laser mode.
Click the 'Return' button to go back to the main screen.

Your gcode file will not use 'Z' commands for laser image engraving. It will use 'S' commands to set the power.
Set the 'S' power setting to 5 and click the 'S+' button when you are ready to turn on the laser to low power mode. Your laser should light up at this setting. If it does not, click the 'S+' button again to increment the power to 10. Your laser should be light up to low power then.

Jog to you desired X/Y zero position and set X and Y to 0 (zero) by clicking the X and Y blue Zero buttons.

You should now be all set to start engraving by sending a gcode file.

Make sure the laser engraving gcode file has been generated with no 'Z' commands in it.
Grbl Mode 1.jpg
Grbl Mode 1.jpg (17.55 KiB) Viewed 3410 times
PS Laser Power 1.jpg
PS Laser Power 1.jpg (9.25 KiB) Viewed 3410 times

Re: laser newbie

Posted: Tue Mar 24, 2020 9:36 am
by Jan.vanderlinden
John,
Just so I understand correctly.
Pic laser can only import pictures?
It cannot import vector files? like from Vectric software?
I read the paragraph about editing a picture to achieve the correct file extension, but it will not do it for me.

Re: laser newbie

Posted: Tue Mar 24, 2020 10:45 am
by Jan.vanderlinden
John.
after clicking the yellow GRBL button, I do not have that option.
Wanted to post a screenshot but I can't do that either.

Re: laser newbie

Posted: Tue Mar 24, 2020 4:33 pm
by Picengraver
Jan,
What version of PicSender do you have?
If you click the Full Editor & Preview button below your post, you can upload images.
Preview.jpg
Preview.jpg (52.45 KiB) Viewed 3395 times

Re: laser newbie

Posted: Tue Mar 24, 2020 4:34 pm
by Picengraver
Jan,
Yes, PicLaser only imports image files. It will only convert image files, not vector files, to .bmp.

Re: laser newbie

Posted: Tue Mar 24, 2020 6:41 pm
by Jan.vanderlinden
Thanks John.
I guess that I misunderstood.
I really need something to do vector files also.

I got v 2.9.0.2

Re: laser newbie

Posted: Tue Mar 24, 2020 8:30 pm
by Picengraver
Jan,
Here is a screen shot of the Auto Settings in v.2.9.0.2.
PS GRBL Screen.jpg
PS GRBL Screen.jpg (99.24 KiB) Viewed 3387 times

Re: laser newbie

Posted: Wed Mar 25, 2020 8:45 am
by Jan.vanderlinden
Good morning John,
That's very interesting.
This is my screen shot.

Re: laser newbie

Posted: Wed Mar 25, 2020 4:04 pm
by Picengraver
Jan,
What version of grbl are you using? Grbl 9 versions do not support Automatic setting changes and does not have a Laser mode.