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I noticed that the wires in Altium are not straight. Is there a way to ensure that they stay straight?

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  • \$\begingroup\$ there should be a snap to setting \$\endgroup\$ Commented Dec 13, 2021 at 23:08
  • \$\begingroup\$ yes, thank you. However, I can only apply to all my new conections. I wonder if there is a way to apply it to previous connections? \$\endgroup\$ Commented Dec 13, 2021 at 23:23

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Use a grid spacing of 2.54 mm (100 mil) in Altium schematic editor.

In the bottom left corner of Altium, you can see the current grid size:

Altium grid size display

In the properties inspector, you can change it by setting Visible Grid, Snap Grid, and Snap Distance. I find that the following settings work well for my usage:

Altium properties inspector

Of course, this comes down to your preference, but there are some reasons to use this value.

Once you've changed the grid, you can align objects to the new grid setting by selecting them and then selecting Align > Align to Grid (Shift+Control+D).

Altium Align to Grid option

More information from Altium here: Defining Schematic Grid Preferences

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  • \$\begingroup\$ Thank you! Just worked it out :) \$\endgroup\$ Commented Dec 13, 2021 at 23:30
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To align connections you first to have to change your grid size to be larger to avoid granular changes in the line e.g. 50 mil is good. Then select the wire. click align, then align to grid.

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