Benbox Laser Machines/CO2 Lasers/3D Printers

General Category => Projects => Topic started by: Elephantman on December 27, 2017, 07:37:41 AM

Title: Slate animals
Post by: Elephantman on December 27, 2017, 07:37:41 AM
I have a friend who is a wildlife carer so i took photos she took of animals she cared for and engraved then onto slate.
In greyscale but next time I'd probably try dithered instead. There are details I'm not happy with.
However she was very happy with her unexpected Christmas gift
John
(https://uploads.tapatalk-cdn.com/20171227/e3b77b2c6aaf531995e235e0ad473057.jpg)

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Title: Re: Slate animals
Post by: nottingham82 on December 27, 2017, 09:19:50 AM
Cool! Haven't tried dithered on slate yet. Could be fun!
Title: Re: Slate animals
Post by: Zax on December 27, 2017, 12:04:07 PM
-They turned out great, I like the text and outlines you used. It really makes them standout.
Title: Re: Slate animals
Post by: Elephantman on December 27, 2017, 02:00:25 PM
-They turned out great, I like the text and outlines you used. It really makes them standout.
The outline was an experiment in itself.
I use paint shop pro but photo shop would be the same.
After erasing the background from the image i selected the remaining image.  Created a new raster layer. Then modified the selection by expanding it  15 pixels and doing a flood fill with a solid colour and then moving that layer behind the image.

Hope that makes sense to you.


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Title: Re: Slate animals
Post by: Elephantman on December 28, 2017, 04:17:08 AM
Well, reading about everyone elses experiments has allowed me to try grayscale photo on slate as well.
My animals previously were meant to be grayscale but came out  black and white

Thankyou to all who have tried before me and advertised on this forum.

Eventually produced this photo.

Speed = 1700 (as per Nottinghams suggestion on another thread), Rapid = 3500
Power = 0-150
Resolution = 0.1
Inverted image.
Found not playing with brightness gave me best results.

I sanded a piece of slate 4 times, and tried a grayscale bar on one.

I've included a photo of the tile (wet with water ) and the original photo, I then cropped, made grayscale and cleaned up in Paintshoppro.

I had 12 sets of 4 slate tiles come from spotlight today ($4.99 each) so plenty of slate etching left to try.
Title: Re: Slate animals
Post by: Elephantman on December 28, 2017, 04:21:13 AM
Cool! Haven't tried dithered on slate yet. Could be fun!

my experiment with dithered failed, came out mostly white, but I then reverted back to grayscale and changed power bandwidth to a few settings before settling on 0-150.
Maybe I should go back and try dithered again.
Title: Re: Slate animals
Post by: Zax on December 28, 2017, 05:06:41 AM
Your results look great to me, I would stick with grey scale.

If you have a 2 wire laser perhaps Velocity Mode but otherwise just leave it as default.
Title: Re: Slate animals
Post by: nottingham82 on December 28, 2017, 10:16:18 PM
my experiment with dithered failed, came out mostly white, but I then reverted back to grayscale and changed power bandwidth to a few settings before settling on 0-150.
Maybe I should go back and try dithered again.

Good to know!