Mandelbrot

ASCII Mandelbrot

April 2019 - present

The Mandelbrot Set is rendered on an Olivetti Te-318 teleprinter and other vintage microcomputer equipment. The number of iterations before divergence are represented by ASCII-63 "colormaps". The images are calculated on a variety of machines, including an IMSAI 8080 microcomputer programmed in MS-BASIC, a Macintosh laptop, a Raspberry Pi, and an emulated PDP-11/70.

Prints and process photos

-0.1528 + 1.0397i

Three images at 64, 256, and 8192 magnification. Qume Sprint 11/55 with 12 point Prestige Elite ASCII wheel, 8 lines / in. Greenbar paper (printed on reverse)
June 2022

FUWvDi3XwAU9FX2 FUWvDizXsAAOgqY FUWvDm1WAAEHwQ1

Teleprinter and terminal output

EffLLh7X0AIJPTU D3 FE5PX4AAcz5 D6VdIyaWsAAo2GZ D6VdIyaXkAYyg V D6VdIyYXkAAnPr3 D6VdIyZXkAEHQah D54NuBUXoAAwBI9 D65TywVXkAQQ639 D EUqKbXsAA0mKm D EUqKcW4AUzxkk D EUqKdXoAYnm80 D PKcfCVAAA2gzq D PKcfFUEAIjWRd D PKcfIU0AYIUP0 D PKcfIUEAEQ99l EAPoXq7W4AA1rx- EAwNDvbWsAQCJE8 EAwNDvcWkAE7dDb EAwNDvdXsAAoxYD EAwNDvsWwAAh8Sv

Wide format prints

E3EIRqRXoAkJMLz E3I9TyaWEAA1i8M

Hand-assembled Mandelbrot zines

Series 1

September 2020

An emulated PDP-11/70 running Seventh Edition Unix was used to calculate Mandelbrot set images. A Bourne shell script generated a series of books of twenty random views (center location and magnification), rejecting images that were largely blank. The output text is sent to a virtual line printer /dev/lp, which is stored as a local file by the emulator. The emulated printer text file was read using Adobe Acrobat and each book of rendered output was printed as a booklet and hand assembled using a five-hole pamphlet stitch and binding thread. The unique books were distributed by mail. 207 booklets were generated, 15 were printed, and numbers 1-13 were sent to friends and acquaintances. The C program and script, which use 1979 versions of the compiler and shell, are available on Github (link).

IMG 8559

Series 2 and 3

March 2021

An updated version of the Mandelbrot generating script creates 10 unique books in each print series. The text is rendered as a PDF using Olivettize, which prints characters using scans of an Olivetti TE-318 teleprinter typeface. Each book of random Mandelbrot images is given a unique number and time and date of rendering. Unix Version 7 (released in 1979) is not Y2K compliant, so the year 1993 is used to preserve the correct day of the week.

IMG 0426 IMG 0427 IMG 0428 IMG 0429 IMG 0430
Ey9 qIxXEAAh06Y Ey9 qJNWUAIPXX3 Ey9 qM1WQAIVdnW Ey9 qNRWgAMwsI8 Ey99yBpVcAEoKax

Random ASCII MandelBot

September 2020

Mandelbrot generating code created pseudo-random views and rendered these as text output. The terminal output was captured and streamed live along with a video of the model PDP-11/70 front panel. The replica PDP is a 3/5ths scale model running the SIMH emulator on a Raspberry Pi Model 4.

EhHGKGGXcAAjnYE EhPG8KdXgAEM80t EhPG8KcXsAEMRWz