Fractal vase 1

prusaprinters

<h3>Slicing</h3><p>This object needs to be hollowed out by the slicing software. It can be printed in vase mode or with 0% infill, 0 top layers and 2 or 3 perimeters and “ensure vertical thickness” turned off.</p><p>I have created 2 different resolutions for this object. The low resolution file only has 500x500x1000 voxels and looks quite blocky when printed in full size. It can be downloaded from the download section.</p><p>The high resolution file has 4000x4000x8000 voxels, but its size is 10GB unpacked, 2GB packed. That's too big for this site, so you can download it from my Onedrive at <a href="https://1drv.ms/u/s!AvTYCP1wyam3iGKSzf88cK4ovitH?e=ASY1lg">https://1drv.ms/u/s!AvTYCP1wyam3iGKSzf88cK4ovitH?e=ASY1lg</a>.</p><p>Both versions are 20cm high and have a diameter of 10cm.</p><p>The model does require a lot of RAM to slice it using the GUI. If you can't load the file in the GUI, try using the command line. Start prusa-slicer as usual. Activate vase mode or set 0% infill, no top layer and 2-3 perimeters. Turn off “ensure vertical thickness”, this adds ugly artifacts to the print. Save the settings as parameter file, e.g. “fractals-2-perimeters.ini”. Then run “prusa-slicer --load fractals-2-perimeters.ini --center 125,105 --slice &nbsp;vase-1-4k-10x20cm_fixed.obj” and print the resulting gcode file.</p><h3>How I created the file</h3><p>I used a small perl script to create a bunch of parameter files for xfractint:</p><pre><code class="language-plaintext">#!/usr/bin/perl -w # create a set of parameter files for fractint # for 10cm x 10cm x 20cm, 4k x 4k x 8k use strict; require Math::Spline; my $steps = 8000; my $xm = 0; my $ym = 0; my $r = 0.17; my @splinex=(0, 0.4, 0.8, 1); my @spliney=(0.6, 0.8, 0.6, 0.7); my $spline = Math::Spline-&gt;new(\@splinex,\@spliney); use constant PI =&gt; 4 * atan2(1, 1); for my $i (0..$steps-1) { my $x = $xm + $r * sin(2*PI * $i / ($steps - 1)); my $y = $ym + $r * cos(2*PI * $i / ($steps - 1)); my $mag = $spline-&gt;evaluate($i / ($steps - 1)); open(my $fh, "&gt;", "vase-$i.par") || die "Can't open"; print $fh "reset=2004 type=julia center-mag=0/0/$mag\n"; print $fh "params=$x/$y\n"; print $fh "float=y\n"; print $fh "inside=1\n"; print $fh "outside=0\n"; print $fh "maxiter=250\n"; print $fh "colors=\@grey.map\n"; print $fh "viewwindows=1/1/no/5464/4000\n"; print $fh "batch=yes\n"; printf $fh "savename=f-%06d\n", $i; print $fh "overwrite=yes\n"; print $fh "sound=off\n"; close $fh || die "Can't close"; }</code></pre><p>I ran the parameters files through xfractint using a small shell script:</p><pre><code class="language-plaintext">#!/bin/sh find . -name "*.par" -printf "%f\n" | \ sort | \ xargs -l -I{} -P10 \ xfractint -disk -geometry 4000x4000 @{} -display :1</code></pre><p>I then ran the images through my <a href="https://github.com/sgust/img2stl">img2stl</a> software, scaled the resulting .stl file to size using the tools included with the software. Finally I ran the scaled .stl file through "prusa-slicer --repair"</p>