Kindly explain the makhraj for the letter noon

Question
salaam alaikum, kindly explain the makhraj for the letter noon
Answer
The articulation point of the letter is from the tip of the tongue and that which lies opposite to it of the gum of the two front top incisors.
This is when the  is voweled or when it is saakin but read clearly.  
Please also see:
http://www.abouttajweed.com/articulation-points-areas-of-the-arabic-letters/the-tip-of-the-tongue-part.html
 
Wa assalaam alaikum