Pattern projector is a free and open source web app that quickly calibrates projectors for sewing patterns. It also has tools for stitching together multiple page patterns, changing line thickness, inverting colors, flipping/rotating patterns, and more.
This tool is free and open source so if you would like to contribute or simply check it out, here it is: https://www.patternprojector.com/
Recent supporters

Bronje is now a member.

Leaf is now a member.

Mazi is now a member.
I trust that your method and assistance will help me generate more income.

Mary Godde is now a member.
I have spent days and nearly weeks trying to reconnect my chromecast, so I could cut. I knew I could, but then I couldn't! Magically it has just worked and I am back.dont know what fixed it? Maybe Google?

Lauren bought 2 coffees.
👍