I want to know that while pronouncing this letter dhaad, does the tip of the tongue play any role or not?

Question
Assalaam U Alaikum,
I have read the makhraj of 'Daad' which is [This letter is articulated from the one or both sides of the tongue and from the molars and the gum area next to the molars.  The posterior one third of the side of the tongue is used for this letter.  This letter can be articulated from one side (right or left) of the tongue alone, or from both sides of the tongue simultaneously]

I want to know that while pronouncing this letter does the tip of the tongue plays any role or not?. Because when I try to recite this word I always feel that the tip of my tongue touches the area of the makhraj of 'Raa' slightly.

JazaKumullah.

Answer
Wa alaikum assalaam wa rahmatullahi wa barakatuh.
The tip of the tongue does not play a role in the sound of the ;  if it does by error, then the sound is more like a than a .  The tip of the tongue rests or lightly touches the gums, but there should be no pressure on the gums.  As long as the tip of the tongue is lightly touching the gum area and no pressure is put on the gums, insha' Allah you will avoid the mistake of the sounding like a .
Please see the link below for a previous question and answer on the letter that further answers your question, insha' Allah.

http://www.abouttajweed.com/270203.htm
http://www.abouttajweed.com/270203.htm