Preview Marker
Places a labeled debug marker in the 3D preview. No effect on the printed output — purely a visual debugging aid.
Block
Interactive preview is available in the interactive reader.
Parameters
label- Optional text label for the marker. Shown in the 3D preview at the current toolpath position.
How it works
Preview Marker inserts a visible marker point in the 3D viewport at the current position in the toolpath. Use it to check where the toolpath is at specific points in your program — for example, at the start of each layer or after a transform.