I'm beginner in ARES and want to know what does the T in track mode mean? and the unit th means ?

track mode

th scale

  • \$\begingroup\$ "wanna" is not english! \$\endgroup\$ – Leon Heller May 5 '18 at 10:36
  • \$\begingroup\$ The width of the track in Mil ( thou) equivalent to 1/1000 of an inch, that is 0.001 inches \$\endgroup\$ – G36 May 5 '18 at 11:05

If I remember correctly, the T is thou. So T20 is 20 thou. The unit th is also meaning thou. It is also called Mil, which should not be confused with millimetre! A thou is equal to 1/1000 of an inch or 0.001 inches as pointed out by G36 in the comments.

  • \$\begingroup\$ Mil is usually used by (non-metric) electrical engineers and Thou by (non-metric) mechanical engineers. If you go metric you only need to worry about mm and microns. \$\endgroup\$ – Spehro Pefhany May 5 '18 at 13:07
  • 1
    \$\begingroup\$ True. But it can get confusing the first time you hear mil if you are used to it being used to talk about millimetres. Happened to me first time, hence why I mentioned it \$\endgroup\$ – MCG May 5 '18 at 13:11

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