Header Part Creation - Pads Have 0.02mm Clearance

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   I created a 1x2 Header, Vertical.  Used a pitch
of 1.27 mm and a square post of 0.40 mm.
 The result was a hole of .75 mm and a pad of 1.25 mm.  Should a 0.02 mm clearance beween pads generate a warning?
The
manufacture recommends a hole of .70 mm and does not recommend an annular ring.  

Clearly this can all be rectified by using the
manufacture setting to enter something that will work.  However, given
that you have this type of part as an auto feature, I thought you might like to
know these results.
Also should silkscreens overlaying pads generate a warning?

 I am a newbie.  I apologize if I have
missed something.

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Smooth.Sailing Members Profile Send Private Message Find Members Posts Add to Buddy List New User Joined: 15 Nov 2012 Location: Utah, USA Status: Offline Points: 2	Post Options Post Reply Quote Smooth.Sailing Report Post Thanks(0) Quote Reply Topic: Header Part Creation - Pads Have 0.02mm Clearance Posted: 12 Dec 2013 at 12:02am
	I created a 1x2 Header, Vertical. Used a pitch of 1.27 mm and a square post of 0.40 mm. The result was a hole of .75 mm and a pad of 1.25 mm. Should a 0.02 mm clearance beween pads generate a warning? The manufacture recommends a hole of .70 mm and does not recommend an annular ring. Clearly this can all be rectified by using the manufacture setting to enter something that will work. However, given that you have this type of part as an auto feature, I thought you might like to know these results. Also should silkscreens overlaying pads generate a warning? I am a newbie. I apologize if I have missed something.



Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5718	Post Options Post Reply Quote Tom H Report Post Thanks(1) Quote Reply Posted: 12 Dec 2013 at 7:38am
	Only the Surface Mount component families have pad to pad trimming and warnings. The SMT calculator can Trim Pads to meet the rules and provide a warning. You cannot trim through-hole pads because you would remove annular ring.
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