Author Topic: First Slate Etch  (Read 98 times)

ggallant571

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First Slate Etch
« on: January 08, 2017, 05:52:34 PM »
Tried my first etching in slate. Not very good compared to wood. Tried to etch the picture of a tigers head, assume I got it from this forum. The lines are nice and crisp but the texture of the hair came out all flat. I suspect it was a poor example to start with.

Going to try Agastar's Elf with text.

Is there a way to clean (sand) the slate so it can be reused? At least for test pattern.
« Last Edit: January 08, 2017, 05:53:09 PM by ggallant571 »
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nottingham82

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Re: First Slate Etch
« Reply #1 on: January 08, 2017, 06:03:27 PM »
not that I have found.  I tried wet sanding but it didnt work.  I usually flip over the one i just messed up and use it for more test runs on the back. What speed did you try.... I think 1500 is what i have been using lately 
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ggallant571

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Re: First Slate Etch
« Reply #2 on: January 08, 2017, 06:18:42 PM »
I tried 1200 at 80% power with 5.5W diode. Nice thing about working with slate is you don't have a smoke and fire problem.
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nottingham82

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Re: First Slate Etch
« Reply #3 on: January 08, 2017, 07:03:16 PM »
haha thats my favorite part. No odors or fire.   

I only have a 2 watt but i cant put a dent in slate unless im at 100 percent power.  so I use velocity mode if i want different shades of grey.
Laser: 2500mw A5 eleks maker
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http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

nottingham82

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Re: First Slate Etch
« Reply #4 on: January 14, 2017, 03:44:40 PM »
I managed to get a slate engraving off.  It also smoothed the piece and removed alot of the natural stone texture on the top.  sides still have that cool chipped feature.  Orbital sander with medium grit and some body weight got it done.
Laser: 2500mw A5 eleks maker
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http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

ggallant571

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Re: First Slate Etch
« Reply #5 on: January 14, 2017, 04:21:41 PM »
I don't have orbital sander but plenty of body weight. Will give it a try. What grit sand paper?

The slate I purchased came with a smooth dark surface. The laser changes the color to light grey with a very little cutting depth. I also see very little differences related to burn intensity.

Are the surfaces treated with anything?
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nottingham82

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Re: First Slate Etch
« Reply #6 on: January 14, 2017, 04:25:48 PM »
I dont know if they are treated or not.  I also dont know what grit I used because I just picked up my sander with whatever was on it and started sanding.  It seems like a fine or medium grit but the number has worn off.  I was trying to get some paint off because it didnt come out how I wanted.  Paint thinner wasnt working so I gave up and went to the sander.   It was still wet with paint thinner on it so I dont know if that did anything to help. 
Laser: 2500mw A5 eleks maker
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http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

ggallant571

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Re: First Slate Etch
« Reply #7 on: January 14, 2017, 04:31:34 PM »
I just tried 60 grit hand sanding. The etch is gone. The surface color is lighter and there are some undesirable scratch marks. Made a useless piece usable for test purposes. Thanks.
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nottingham82

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Re: First Slate Etch
« Reply #8 on: January 14, 2017, 04:34:26 PM »
sweet.  Yeah the stuff I used didnt leave any scratches or lighten it but it did make it much flatter and smoother.   I'll have to look in my cabinet and compare the sand paper to whats in there to see if I can figure out its grit.
Laser: 2500mw A5 eleks maker
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http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016

nottingham82

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Re: First Slate Etch
« Reply #9 on: January 14, 2017, 09:33:17 PM »
found a stack of it.  It was 220
Laser: 2500mw A5 eleks maker
OS: Windows 10 all in one pc
Software: T2
http://www.gearbest.com/3d-printers-3d-printer-kits/pp_290386.html Paid $160 in 2016