Please look at theese settings

Mach3, grbl, ect.
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freddeifk
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Joined: Thu May 05, 2016 4:09 am

Please look at theese settings

Postby freddeifk » Thu May 05, 2016 8:05 am

katta.gif
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kat 1.jpg
kat 1.jpg (28.17 KiB) Viewed 4189 times
grbl.GIF
grbl.GIF (51.37 KiB) Viewed 4189 times


I am just testing too laser angrave a photo i download , (i have tried 2 different photos, but it is about same)

i hava a shapeoko 2 with Jtechs 2,8 w laser and the jtechs grbl 0.9 and use picsender too send the gcodes.

the engravings are on Birch ply , and the laser burns the Wood just too much i Think,its just nearly black and soot if i touch my fingers on the engraving.

i use pwm Control , solder a wire too pin 11 and ground 14, i hope the pwm are working ass it should ?

the first attempts i used feedrating 1000mm/min and the seccond attempt i used 2500 mm/min , but i did not see much difference between them.
and set max laser value 255 And min 10 and use GRBL .

Is there any real problem in my grbl settings ?
and what can i try too do to get abetter engraving ?

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Picengravertoo
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Re: Please look at theese settings

Postby Picengravertoo » Thu May 05, 2016 9:24 am

Try changing to these settings.

$110=7650.000 (x max rate, mm/min)
$111=7650.000 (y max rate, mm/min)

freddeifk
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Re: Please look at theese settings

Postby freddeifk » Thu May 05, 2016 9:32 am

Ok i Will try, what difference Will that settings do to My engravings ?

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Picengravertoo
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Re: Please look at theese settings

Postby Picengravertoo » Thu May 05, 2016 9:50 am

Those settings are limiting the X&Y axis feedrate to 500mm/min and that is why it's burning real dark.

Post your PicLaser settings here for us to look at also.

freddeifk
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Re: Please look at theese settings

Postby freddeifk » Thu May 05, 2016 10:02 am

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Picengravertoo
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Re: Please look at theese settings

Postby Picengravertoo » Thu May 05, 2016 10:15 am

The Start Comment should be ( and End Comment should be )

Everything else looks OK, but I wonder if the 1 Start & End Comments is causing an issue with grbl.

Also add a G90 G94 to the PreCode Commands.

freddeifk
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Re: Please look at theese settings

Postby freddeifk » Thu May 05, 2016 10:47 am

Hi picengravertoo,

I changed all the settings you Said,
And now the cat was just fine,
But the shapeoko machine was nerly going too fast so it was wibrating a lot,

Thankyou for all your help,

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Picengravertoo
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Re: Please look at theese settings

Postby Picengravertoo » Thu May 05, 2016 11:04 am

I laser engrave photos at 200IPM (5080mm/min) with our Shapeoko 2 using a 6W laser Diode. That is with our PicEngrave Pro 5 and it has an Extended Edge feature to slow down the feedrate when reversing direction.

Jeff

freddeifk
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Re: Please look at theese settings

Postby freddeifk » Fri May 06, 2016 3:28 pm

If i wants too engrave a softer wood for example cedar,
Shall i speed up the shapeoko even moore or can i adjust the height on the z axis ?

I tried on a cedar scrap wood and it was not wery good,
The birch play i tried was wery good

freddeifk
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Re: Please look at theese settings

Postby freddeifk » Fri May 06, 2016 3:52 pm

Or is it a good ide too set down the Max laser value too set down tha hard burning


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