Wait, this is a big deal. You’re telling me that you got pauses in TgFX when doing laser cutting, which was probably due to Java’s garbage collection? In ChiliPeppr though you got no pausing and a clean output from the laser cut? The community needs to hear this because most Gcode senders are Java and if garbage collection does a “stop the world” it can kill jobs like yours. I specifically wrote Serial Port JSON Server in an environment that was high performance to avoid this from happening, and it appears it worked for you beautifully.