Author Topic: Linear edge fringe burn  (Read 1132 times)

micky

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Linear edge fringe burn
« on: March 26, 2018, 02:34:29 AM »
Hi all. I use by Eleksmaker A3 to engrave leather goods.

I use linear mode, which seems to cause a slight burn at the extreme ends of each engraving. You can see in my photos, the left side of the letter M, and the right side of the letter i are both darker than the rest of the engraving.

I can eliminate this by using diagonal mode, but that causes my machine to vibrate and as such I lose definition.

Can anyone suggest how I can eliminate this fringe burning but keep linear mode?

ggallant571

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Re: Linear edge fringe burn
« Reply #1 on: March 26, 2018, 04:23:11 AM »
This can happen if the acceleration is too low. The newer firmware also has a laser mode where the intensity is diminished when traveling at less than the specified speed.
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wild.bill

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Re: Linear edge fringe burn
« Reply #2 on: March 26, 2018, 04:35:29 AM »
On the Laser page - Settings->Advanced->Dynamic Laser Power
enable that option
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Zax

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Re: Linear edge fringe burn
« Reply #3 on: March 26, 2018, 04:57:25 AM »
My default acceleration is pretty high so that's unusual (if you are using my Grbl 1.1e of course), but using the dynamic laser power option should fix it.

micky

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Re: Linear edge fringe burn
« Reply #4 on: March 26, 2018, 06:05:19 AM »
Yes, I'm using your Grbl 1.1e.
I'll enable the dynamic laser power option and report back.
Thanks for the replies!

micky

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Re: Linear edge fringe burn
« Reply #5 on: March 26, 2018, 06:32:50 AM »
It worked!
Thanks as always for your help fellas.
Mike.