scribbler

joined 8 months ago
[–] scribbler@lemmy.world 8 points 1 week ago

It's anodized titanium - I developed a process to 'draw' the anodization layer. The thickness of the anodization determines what colors you see due to some cool physics of reflection/refraction. I have a lot of fun with it, but the setup I've built is pretty klugey so I probably spend more time improving and maintaining that than I do making prints πŸ˜…

 

It took me a lot longer than I expected to get this print out. In theory it was really straightforward, take my turtle image and feed it through similar code as what I used to make the jellyfish, but... I recently added a MOSFET into my print system so that I can control the anodizing current by pulsing that (instead of print speed/voltage), but it led to a ton of EMI issues messing with communication with the motor controller. After changing my grounding paths many times and receiving a few fun 200V shocks I just re-wrote my controller code to be more fault tolerant, and that seems to have done the trick!

[–] scribbler@lemmy.world 2 points 2 weeks ago

Stencils/masking is the way more straightforward and normal way to do this!

[–] scribbler@lemmy.world 1 points 2 weeks ago

Sadly I don't know of a way to do that on lemmy. I do have an Instagram (ti.prints) because selling your soul to Zuck seems to be the only way for artists to stand a chance of selling their work :/

[–] scribbler@lemmy.world 2 points 2 weeks ago (1 children)

Absolutely! So the metal is titanium, and the whole piece is submerged in a dilute electrolyte (baking soda is the MVP here). The entire plate gets charged up to 200V, then I use a pen plotter to bring my pen/cathode (ground) within a few hundred microns of the plate and let the current start flowing. At this point, everything affects the colors you get (temperature of bath, dwell time of cathode, conductivity of bath, spacing between my pen and the plate) because all of these factors affect how thick the anodized layer beneath the pen will be.

The physics of what color you get from a given thickness of anodized material is pretty well characterized already, my shtick is being able to locally control the anodization to make pictures like I've been posting.

Here's a link to a terribly edited YouTube video I put up a few weeks ago on the process: https://youtu.be/xYB1iIjg5u0

And I also have a crude website at https://www.tiprints.com/

[–] scribbler@lemmy.world 3 points 2 weeks ago (3 children)

Thank you so much! Yes, the color comes from alterations from light reflection. It's difficult to describe, but the changes in color you get from viewing angle aren't as strong as what you get from a soap bubble, but they are definitely there. If you think of the colors you can get from this process in a spectrum, viewing angle can give you about a half step up or half step down. The spectrum runs from: tan, brown, deep blue, light blue, yellow, magenta, light blue again, purple, green, pearl scent.

I've found lighting makes a huge difference though - diffuse lighting like what I have around the house is great. I've got some prints hanging in a gallery that only has spot lights, for those you have to make sure there is a path for the light to bounce off the spotlight into your eyes or the whole print just looks faded and grey.

 

New style! Kaleidoscope, medium is still anodized titanium because I'm a one trick pony :D

[–] scribbler@lemmy.world 5 points 4 weeks ago

I'm not a bread enthusiast, but those look amazing!

[–] scribbler@lemmy.world 1 points 1 month ago* (last edited 1 month ago)

Assuming you somehow use up your original data cap in... Let's say one incredibly data intensive day somehow. That leaves you with (30 days * 24 hrs/day) * 3600 seconds/hr * 256,000 bps = roughly 660 gigabytes. So I guess that's probably the limit? Plus your original cap.

[–] scribbler@lemmy.world 8 points 1 month ago

Feels like the answer must be technically yes, but practically no. Would make a great xkcd "what if."

[–] scribbler@lemmy.world 4 points 1 month ago

I have one of these, personally I love not having to pick my hands up off the keyboard. It's like living your whole life in vim!

[–] scribbler@lemmy.world 2 points 1 month ago

Hahaha touche - it's at Joshua Tree national park in the US

 

This has been a fun one - I was testing using more traditional pen plotter techniques (wiggly lines) to drive color instead of dwell time. It's really interesting how it comes out, the way the anodizing affects neighboring lines create a bit of a natural averaging that makes the whole thing look 'higher resolution' than the same thing drawn with just ink. Here's a closeup of the lines - pretty cool!

 

New print! This one played with a new technique. I noticed there is a speed that makes resonant vibrations in the pen plotter. This entire print runs at that speed, giving the colors some texture from the vibrations. The color variation comes from repeated passes over the same areas.

 

Another titanium print! This one is super geometric - the basis of the print is just a bunch of squares/diamonds rotated around a central point, the visual complexity comes from the combination of how they overlap and motion control of my pen plotter (specifically that it needs to accelerate and decelerate as it changes directions).

 

I've been playing around with more abstract stuff lately - I'm doing a series of prints that are basically just weird circles, hence the goofy old timey name of cyclometry :) The colors on this came out really neat in person!

 

Newest titanium print! It's of a region in the Eagle nebula, originally captured by the Hubble telescope. Space seemed like a cool place to explore a little more of the colorspace available in this process. Plate is 12"x18", image is ~9.5"x14".

I'm really happy with how this one came out, the background 'sky' is a gradienting deep iridescent blue, and the nebula itself hits some cool magentas, yellows, and a bluish-green that can't make its mind on what color it wants to be depending on angle and lighting.

 

Apologies for the less than stellar lighting. This was my biggest print so far, just under 18"x 18"! I'm really happy with the details, but printing something this big was definitely a learning experience for me. It took 3 attempts to get this image out, but I learned a lot about tubing management and maintaining chemistry I can think about while I sand down my previous botched attempts :D

 

Another anodized titanium piece - this one is playing with line work. The color variation is from varying dwell time, which changes for each hexagon in a rolling pattern, as well as from the interactions between the hexagons.

 

First post here - I’ve been experimenting with creating art by selectively anodizing titanium. Patterning anodized titanium isn’t new, but this process allows me to create full pictures, which I think is the first time this has ever been done.

This piece started off as a photo of a beach at sunset that I color mapped into the anodized Ti spectrum and printed.

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