The template below contains an empty DIN A4 page (portrait format) with an additional layer with isometric grid (visible, not printable and locked). If you modify the grid settings in Draw as described they will fit together smoothly and support isometric drawings with right angels of 60° and 120°.
The OpenOffice Draw grid settings have to be in millimeter, otherwise you will get rounding errors. Use these values to fit the layer in:
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