3D Printed Spirographs

v1.6 *** ***     2025/06/20

        
© 2025, Sylvain Weiller
Always type CTRL-F5 to charge latest version of this page!

No installation required!
Simply place the files in a dedicated non-system directory (e.g., `Users\3DPrintedSpirograph\...` or `Appexe\3DPrintedSpirograph\`).

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**Introduction**

I felt like doing domething delightful for a change!
For me it's a lot of fun ...


In the current version 1.6, the program offers:
9 individual shape parameters,
Custom drawing and background color options,
Simple and complex spirographs with harmonics and frequency multipliers,
Fast, step-by-step animation playback,
Generation of controllable G-code (editable text), directly printable with an Anycubic Mega Pro 3D printer (adapt the .gcode for your own printer if needed),
Analysis of print density, based on direct X/Y line movements,
Full support for saving and loading all settings and associated JPG images,

Planned for a future release:
The ability to export animations as GIFs

Interface of    3D Printed Spirograph V 1.6

Use is simple, just a few points ...

DESIGN

Animations... Don't forget to hit 'Refresh' first. Choice of 'Animate R' or 'Animate r'.
'1 / Speed' from 1 to +++, the higher the value the higher the time interval (ms) in between frames show.
'Delta (R,r)'... Animation will start with at R-Delta (or r-Delta) until R+Delta (or r+Delta).
'Interval'... The smaller the value, the smaller the calculated step in between each frame of the spirograph.
'Step by Step' ... You have seen something nice! Stop the animation then go frame by frame to find it, save it ...
'Save All' ... Saves in one time the .gcode and the JPG with same generic name.

3D-PRINTING

'See Printed Density'... Utility to run before 3D printing to simulate the density of deposit (here once again with each pass, then darker and darker, check around center if Ok).
'Layer Height' ... fraction of mm deposited at each pass.
'Relief Height' ... Total height (mm) of the final printed spirograph.
'Extrusion Factor' ... 0.008 is a general standard value. Change only if you know what you are doing.

3D Printed Spirograph in action (Sorry, just a rather poor quality animation done by screen copy)!

In real Pc monitor quality	Just a rather poor rendering (done by screen capture) of the HQ animation while changing parameters ...