An Inkscape symbol library to create Celtic knotwork Zip file includes two symbol files and a construction template with proper gridding.
A creative derivative of folio 1v of The Book of Durrow I started 25+ years ago on vector drawing program GeoDraw for the GEOS OS. Decided it was time to recreate and finish this off in Inkscape. Better late than never I guess. Properly layered/grouped so you can change the styles to suit your taste. Knotwork created using: https://www.patreon.com/CelticOneDesign
Using the new capabilites of the Shape Builder tool in v1.4 to explode bitmaps into tiles Be sure to download the file and not the screen capture Knotwork created using: https://www.patreon.com/CelticOneDesign
This is so much easier and faster to do in v1.4.1 Step pattern created using: https://www.patreon.com/CelticOneDesign
Tech to create pencil like strokes Knotwork created using: https://www.patreon.com/CelticOneDesign