Experiment with pointilism

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ijv
Posts: 71
Joined: Sun Apr 06, 2014 10:41 am

Experiment with pointilism

Post by ijv » Wed Jul 13, 2016 12:47 am

I've been experimenting with generating pointillist or stipple images for my Shapeoko, using the Stipplegen program from Evil Mad Scientist Laboratories. This is an example using a test image from that program.
P7130080.JPG
P7130080.JPG (481.79 KiB) Viewed 1779 times
The main effort involved was in writing some software to convert the dots in the svg file that the program generates to gcode, with the size of each dot transformed into depth of plunge for a v-bit. One nice feature of Stipplegen is that teh Traveling Salesman path feature effectively generates an optimised CNC path. Let me know if you are interested in my conversion software, its C# .NET for Windows. I haven't tested it, but it should run under Wine for Linux.

JeromyReno
Posts: 225
Joined: Mon May 04, 2015 11:28 pm

Re: Experiment with pointilism

Post by JeromyReno » Wed Jul 13, 2016 1:38 am

i love this!

madhatter
Posts: 164
Joined: Sat Mar 21, 2015 1:33 am
Location: WA, USA

Re: Experiment with pointilism

Post by madhatter » Wed Jul 13, 2016 4:24 am

I am definitely interested in this. I can think of a few projects once I get my XXL up and running.
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RoguePirin
Posts: 216
Joined: Wed Sep 02, 2015 3:22 pm
Location: Illinois, USA

Re: Experiment with pointilism

Post by RoguePirin » Wed Jul 13, 2016 1:38 pm

I would be interested in this as well. Was your test image done with a v-bit? It looks more like it was done with a marker/laser. If you did use a v-bit, how did you finish the piece?
Shapeoko 3 #677, Nyloc nuts, ¾" HDPE base with t-nuts, Dewalt 611 w/Super PIDv2

ijv
Posts: 71
Joined: Sun Apr 06, 2014 10:41 am

Re: Experiment with pointilism

Post by ijv » Thu Jul 14, 2016 1:05 pm

JeromyReno wrote:i love this!
Thanks, they don't make them like Grace Kelly anymore :-)

ijv
Posts: 71
Joined: Sun Apr 06, 2014 10:41 am

Re: Experiment with pointilism

Post by ijv » Thu Jul 14, 2016 1:20 pm

RoguePirin wrote:I would be interested in this as well. Was your test image done with a v-bit? It looks more like it was done with a marker/laser. If you did use a v-bit, how did you finish the piece?
The bit I used, is a Dremel 125 bit. The reason for the laser look is that it was cut into plywood with a light face sheet and a darker under sheet. I then simply did a light sand and applied a coat of Scandinavian oil.

I'll get the code into shape and look into hosting it somewhere.

ijv
Posts: 71
Joined: Sun Apr 06, 2014 10:41 am

Re: Experiment with pointilism

Post by ijv » Sun Jul 24, 2016 4:00 am

I've posted the executable and source for my code in drop box here. It's released under the BSD 3-clause licence.
Let me know if you have any problems running the program or compiling the source. If people are really keen to develop it any further we could look at starting a GitHub project.

COMarcus
Posts: 35
Joined: Fri Sep 18, 2015 2:48 pm

Re: Experiment with pointilism

Post by COMarcus » Mon Aug 08, 2016 7:17 pm

I did a halftone image of my kiddos, plywood, covered in paint. Sold a few other in the neighborhood...they're very popular.
miles ben halftone.jpg
miles ben halftone.jpg (218.78 KiB) Viewed 1404 times
These were just scrap pieces of plywood and was shocked they turned out so good. If you do use plywood, use the good stuff. You can see the voids in the plywood on my kiddo's forehead on black picture. future cuts on nice baltic birch havent run into this yet.

ijv
Posts: 71
Joined: Sun Apr 06, 2014 10:41 am

Re: Experiment with pointilism

Post by ijv » Tue Aug 09, 2016 10:26 am

Nice, what technique did you use to do the half toning?

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