I am using autoroute option in Altium designer (for only bottom layer), but in result I see some tracks overlapped to each other, as you can see in this photo:

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So I think when the Altium could not find proper route it must not make track between those two points, but this is not happening! Why?

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    \$\begingroup\$ Have you asked Altium Support? \$\endgroup\$ – Bence Kaulics Dec 20 '16 at 11:49
  • \$\begingroup\$ No, But I will do it soon. \$\endgroup\$ – 1st Dec 20 '16 at 14:47
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    \$\begingroup\$ Easy answer: Because autorouters suck. That routing is a mess, you'd be MUCH better off routing it by hand. Avoid autorouters -- they're more trouble than they're worth. \$\endgroup\$ – DerStrom8 Dec 20 '16 at 17:20

Usually when Altium does something weird it is because of an incorrectly setup design rule, but unless you are prepared to spend ages on net classes and rule tweaking, manual is usually a much better approach, certainally if trying for a single layer layout.

I would also advocate some more thought about placement U3-U6 would route much more nicely if rotated 90 degrees anti clockwise

  • \$\begingroup\$ I think So (Altium does something weird it is because of an incorrectly setup design rule) but I guess there are some problem in some components library which make this error.!!! \$\endgroup\$ – 1st Dec 21 '16 at 8:01

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