[SOLVED]How to print pcb layout or 3d model real size

Layout
1

I design a board and I would like to check components are fitting by printing the board in is actual size.
How can I do so?

2

Have never done it but if you print PCB with A4 frame at A4 paper it isnā€™t 1:1?

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3

When printing, the default is 1:1 How accurate do you need it to be?

For mechanical CAD programs it is relatively common to be able to calibrate the printer in X and Y directions separately. I am not aware of such a function in KiCad.

4

Iā€™d plot to PDF (make sure you are at 1:1) then print the PDF making sure you do not ā€œscale to fitā€ . . . Iā€™ve had good results using this technique from other sources/programs.

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5

Print 1:1, measure the actual size and use the ā€˜Customā€™ scale to make it accurate. This works well for me.