September 2014 - Fractint - mailman.xmission.com

3D Printing fractals
by Hal Lane 09 Sep '14

09 Sep '14

> ...shouldn't it be possible right now for a 3D printer to > create things like that, say, out of colored plastics? Multi-color 3D printer do exist now: http://mashable.com/2014/01/27/stratasys-3d-printer/ [The article says that Stratsys acquired consumer-oriented 3D-printing company MakerBot, that you may have heard of.] And another color 3d printer is here: http://tinyurl.com/Multi-color-3d-printing or: http://3dprintingindustry.com/2014/04/14/amaker-multi-material-multi-color-3 d-printing/ Another way to get shading / coloring is by using a transparent material: "A lithophane is an etched or molded artwork in thin, very translucent porcelain that can only be seen clearly when back lit with a light source." - http://en.wikipedia.org/wiki/Lithophane "Variations in thickness present a detailed, almost photographic image when light passes through. Night lights, ceramic panels and lamp shades utilizing this complex technique were popular in Victorian England." Be sure to see the photos of lithophanes at the bottom of the Wikipedia page. I believe that the lithophane of the cat is shown being made by cutting material away to create the varying thickness, rather than casting it (as with ceramics.) So, you could 3D print a 2D fractal using a transparent material -- with thickness as the "color" thus giving shades of a single color. When lit from behind you'd get a glowing fractal image. Anyone own a 3D printer? <--<< I once saw a white ceramic (probably Victorian) lampshade where the image appeared only after the light was turned on. Close examination showed that it varied in thickness in the pattern of the image. The image appeared in shades of gray on the featureless, smooth outside of the lampshade -- but only when it was turned on. It was a very pleasing effect. - Hal Lane ######################## # hallane(a)earthlink.net ######################## =========================================================== Author: JackOfTradeZ Date: 2014-09-08 14:37 -400 To: fractint Subject: [Fractint] While we're waiting for Jim Muth's next FOTD... (Hal Lane) Those are awesome! I have seen stuff like that before; shouldn't it be possible right now for a 3D printer to create things like that, say, out of colored plastics? Then we could print ornaments of the mandelbulbs etc - would make awesome living room decor! =========================================================== --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com

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While we're waiting for Jim Muth's next FOTD... (Hal Lane)
by JackOfTradeZ＠comcast.net 08 Sep '14

08 Sep '14

. Those are awesome! I have seen stuff like that before; shouldn't it be possible right now for a 3D printer to create things like that, say, out of colored plastics? Then we could print ornaments of the mandelbulbs etc - would make awesome living room decor! .

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While we're waiting for Jim Muth's next FOTD...
by Hal Lane 08 Sep '14

08 Sep '14

While we're waiting for Jim Muth's next FOTD, here are some interesting fractal photos by artist Tom Beddard. I believe they're ray-traced to give them their nice shadowing. Perhaps they could be '3D printed' -- but the painting of the patterns onto the built-up, printed 3D fractal would sure take a long time... ;-) http://www.sciencealert.com.au/news/20142706-25757.html The artist has more images at: http://www.subblue.com/ > gallery as well as a Mac fractal program at his: > projects - Hal Lane ######################## # hallane(a)earthlink.net ######################## --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com

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FOTD 04-09-14 (Island Universe [A-7,M-8])
by Jim Muth 05 Sep '14

05 Sep '14

FOTD -- September 04, 2014 (Rating A-7,M-8) Fractal visionaries and enthusiasts: If anyone is still checking the list, the fractals will continue coming, maybe not every day but often enough to make a quick check always worth the effort. Today's image shows one of the more interesting minibrots I have yet found in a fractal with an exponent of Z between one and two. The exponent of Z in today's image is 1.77, and the complex logatithmic hyperspiral was sliced 2 turns from ground zero in the positive direction. The parent fractal resembles a distorted Mandelbrot set rotated so that the large bud faces southeast, with the nascent East Valley on the northwest side of the main bay. Today's image with its central minibrot lies on the northeast shore line of this rudimentary valley. I named the image "Island Universe" because the central minibrot, like all minibrots, contains an infinity of detail within its basin of attraction. The art aspect rates a 7 since I could have done more work on the coloring. The math rates an 8 because of the unusual richness of the scene with its shoestrings around the minibrot. The image calculates in 3 minutes -- about average for an everyday fractal. The image may also be enjoyed on the FOTD web sites. The image is online at: <http://www.crosscanpuzzles.com/Archives.html> <http://www.emarketingiseasy.com/TESTS/FOTD/jim_muths_fotd.html> <http://www.Nahee.com/FOTD/> <http://user.xmission.com/~legalize/fractals/fotd/about.html> A mix of sun and clouds with a temperature of 86F 30C made today an enjoyable one here at Fractal Central. The trio of fractal cats agreed. The 11-year-old cat Nicholas slept while the one-year-old kitten Jasmine and the four-and-one-half-month-old kitten Lida Rose kept each other busy playing. The next FOTD will be posted in a day or so. Until whenever, take care, and when one side says 'We will stop bombing you when you stop terrorizing us' and the other side says 'We will stop terrorizing you when you stop bombing us', nothing gets done. Jim Muth jimmuth(a)earthlink.net START PARAMETER FILE======================================= Island_Universe { ; time=0:03:00.00 SF5 at 2000MHZ reset=2004 type=formula formulafile=basicer.frm formulaname=BranchCutGenHJ passes=1 center-mag=-0.4379327761659057/+0.1996772042091487\ /7.854678e+008/1/7.5/0 params=1.77/0/0/2 float=y maxiter=2700 inside=0 logmap=392 periodicity=6 colors=000SVfcUKUUUcUKc_`_SPWKE2TVIXaX`gkcm_XcORVC\ KL0ECt9U4F2zBzz71130xQ6hJ4UD3Fz1mDoX8YG4HzzfWCSG6z\ 8sobT6QzzD92LmfF`WAPLzzzk3bW2QzcmiKET3Ywmccccmmm1s\ o0SQWJDmmmwmcchoUXbKMQAzDUA0ISH9E8Po_GYO8HCa4WJ2GT\ 70L50E30710pm6QP3oCPQ6CnDoYVHHF8uRhdgLKMAE_NPyDIi9\ CV66F3mzGZ9Ny9BV45mFCP7623x12h11U00FOpAGZ68H3hL5UE\ 3F71nr4Y_2HI1yz`ijRVVIFF9_JWREOfbQ948yk4dW2KG1ibY8\ 4C0xiVKadUfm`VAzp6eZ3LH1eE0VA0L70A3nfVPLFDbP6JCyog\ dYTKHEwPYhCPN8HB48s8TS4EDbz3Q25H4282BCJ78C346_juOV\ aCFJ1nI0P9bQdQHRD8DY8pP6bH4Q82D3Ac27U15K02A47T23Eq\ Xm_MXIBGehBSU7EF3Xk5OQ3GH2881UXamW9TF6JA4952G88I55\ 9CcP0zp0zXWzHwz0sz0`z0IzWKNLDFA67EKr9D_46I_ozIQVyf\ CiW9VL6FA3yUZrUT_UJIU91UT_UKRUFIUA9c5Gc`ScTIcJ9c91\ cO0cG0m85mF3mA1m5CmE6z79zf0zlwz_wzOwzCwzIwzXwzKwzF\ wzAwz5wzXwzMwzBwzqwz_wzIwz8wzzwzzwzzwzzwzzwzzwzzwz\ zwzzwzzwzzwzzwzzwzzwzzwzz } frm:BranchCutGenHJ { ; Jim Muth, thanks to Hal Lane Z=C=Pixel: Z=log(Z), Z=exp(p1*(Z+(p2)))+C, |Z|<100 } END PARAMETER FILE=========================================

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