Uploaded March 2023 | Updated September 2026, 6 days ago
Toby is doing an impromptu live stream. We'll try to code the Celtic Knotwork from this paper by Andrew Glassner: glassner.com/wp-content/uploads/2014/04/CG-CGA-PDF-99-09-Celtic-Knotwork-1-Sept99.pdf
*Celtic Knotwork Series*
Printable Coloring Activity
https://cuttle.xyz/@toby/Celtic-Knotwork-Printable-mXvXN0oLPS69
Recommended! This is a special "graph paper" that you can print and then draw your own knotwork designs. A great way to build an intuition for how the "break lines" work in the algorithm.
Coding Series Part 1
Live stream recording: youtu.be/Ca_WFxxmXfg
Code: https://cuttle.xyz/@toby/Celtic-Knotwork-Part-1-GfJXB839sAlw
In this live coding session we built the "skeleton" of the knotwork design which snake around the "break lines".
Coding Series Part 2
Live stream recording: youtu.be/AOmDAoQc3v8
Code: https://cuttle.xyz/@toby/Celtic-Knotwork-Part-2-vnCcuG5XwHkl
In the second session, we finished up the basic algorithm, making the knots "weave" under or over each other and adjusting / rounding the corners appropriately.
Celtic Knotwork (cleaned up)
https://cuttle.xyz/@toby/Celtic-Knotwork-cleaned-up-Da71hdl0xv7b
I cleaned up the code and reparameterized the algorithm, making it easier to explore the design space of break lines.
Celtic Knotwork (1999) by Andrew Glassner
glassner.com/wp-content/uploads/2014/04/CG-CGA-PDF-99-09-Celtic-Knotwork-1-Sept99.pdf
This is the paper which all of the above is based on.
Toby is doing an impromptu live stream. We'll try to code the Celtic Knotwork from this paper by Andrew Glassner: glassner.com/wp-content/uploads/2014/04/CG-CGA-PDF-99-09-Celtic-Knotwork-1-Sept99.pdf
*Celtic Knotwork Series*
Printable Coloring Activity
https://cuttle.xyz/@toby/Celtic-Knotwork-Printable-mXvXN0oLPS69
Recommended! This is a special "graph paper" that you can print and then draw your own knotwork designs. A great way to build an intuition for how the "break lines" work in the algorithm.
Coding Series Part 1
Live stream recording: youtu.be/Ca_WFxxmXfg
Code: https://cuttle.xyz/@toby/Celtic-Knotwork-Part-1-GfJXB839sAlw
In this live coding session we built the "skeleton" of the knotwork design which snake around the "break lines".
Coding Series Part 2
Live stream recording: youtu.be/AOmDAoQc3v8
Code: https://cuttle.xyz/@toby/Celtic-Knotwork-Part-2-vnCcuG5XwHkl
In the second session, we finished up the basic algorithm, making the knots "weave" under or over each other and adjusting / rounding the corners appropriately.
Celtic Knotwork (cleaned up)
https://cuttle.xyz/@toby/Celtic-Knotwork-cleaned-up-Da71hdl0xv7b
I cleaned up the code and reparameterized the algorithm, making it easier to explore the design space of break lines.
Celtic Knotwork (1999) by Andrew Glassner
glassner.com/wp-content/uploads/2014/04/CG-CGA-PDF-99-09-Celtic-Knotwork-1-Sept99.pdf
This is the paper which all of the above is based on.






![Polygon Boxes - Laser Cutting Tutorial
Make boxes with a Polygonal base and as many sides as you want using this Cuttle template. You can customize the size and the material thickness to get the settings just right for laser cutting. We also show you how to assemble the box.
Polygon Box Template: https://cuttle.xyz/@cuttle/Polygon-Box-O2jNAfl4MMgx
Polygon Box with Mandala Pattern Template: https://cuttle.xyz/@cuttle/Polygon-Box-With-Mandala-Pattern-ZaD4pO08YiqM
Detailed video on Finger Joints: https://youtu.be/xYnebfYbDXs
Find more templates at https://cuttle.xyz/templates
Cuttle is a web-based design tool for laser cutting. https://cuttle.xyz
Materials and Supplies (contains affiliate links)
- Example boxes are made with Glowforge Light Maple Plywood https://shop.glowforge.com/collections/plywood/products/maple-plywood-finished
- Example box was made from 1/8 Birch Plywood from Craft Closet https://craftcloset.com/products/baltic-birch-1-8-inch-b-bb-grade?
- Generic Super Glue https://amzn.to/3RdjxOO
- Inexpensive digital calipers https://amzn.to/3wGxcCG
Social
- YouTube https://youtube.com/cuttle
- Discord https://cuttle.xyz/discord
- Instagram https://www.instagram.com/cuttlexyz/
- Twitter https://twitter.com/CuttleXYZ
Contents
[00:00] - Intro
[00:29] - Getting to the Template
[00:39] - How to change parameters
[01:11] - Number of Sides
[01:51] - Diameter
[02:22] - Height
[02:40] - Material Thickness
[03:19] - Kerf! Getting a good press fit
[03:57] - Optional Cover
[04:15] - Customizing Top Opening
[04:51] - Box Assembly
[05:49] - Box With Mandala Pattern
#lasercutting #glowforge #crafts #diy #laserCutBoxes Polygon Boxes - Laser Cutting Tutorial](https://i.ytimg.com/vi/C7tnN_wnbJw/mqdefault.jpg)



