Strange circle with a cross in board file

Hi there,

I have a strange circle with a cross symbol in my board file. I cannot interact with it and have no idea how it appeared. What is it and how do I get rid of it?

image

Thanks!

It is the grid origin. You can move it with: PCB Editor / Place / Grid Origin [S], or with PCB Editor / View / Grid Properties. If you set the grid origin to (0, 0), then the cross disappears.

Note, there are also toolbar buttons to set this.

I did suspect that this was something to do with origin offset. Thanks for the quick reply.

This is one of those features you use rarely

Depends on used workflow. I use it regularly for designing footprints and placing footprints in board. It’s useful for all tasks were items have to be placed regularly (pads in footprints, footprints/header-pins in the board).
working steps: place first footprint/pad, set grid-origin to pad-center/footprint-center (is easy with automatic snapping-functionality), set grid-distance to placing-distance, place all following pads/footprints.

Admittedly this would also work without hotkey (using the tool-icon on right toolbar).

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In my board there was hole with that symbol. How can that be? (In my current project I modify an open HW KiCad project)

In my board there was hole with that symbol. How can that be?

I think you confuse two different symbols in the board.

  • symbol with 45°-crossing-lines (like picture in original post): grid origin marking. No influence on production board
  • symbol with horizontal/vertcal-crossing-lines: layer alignment target - produces cutout in edge.cuts layer. Not visible in 3D-viewer.

Before you ask: that thing was used for aligning the layers (printouts/films) in older times and is nowadays only seldom used.
In the upcoming v6.99 this layer-alignment-target is already removed (from iconbar) to prevent accidental addition to the board.

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