Threads and Knurling on part

[Rasorr]

Hello,
I having difficulty in drawing the Threads, Both Internal and External, I knows little bit drawing a thread with Protrusion command, But It is difficult to draw the Standard Threads with it like M18 and cross section of Threads like square or circular.
I also have problem in drawing Knurling on part, Plase Tell me How to Draw to Threads and Knurling on Part Model.
Thanks

[[[[[[HAVE A NICE DAY]]]]]]]

From:-
Rasorr

 

[garymig]

If its just for show in the model forpicture purposes, i just slap a jpg on the surface. A picture for threads and one for knurl surface. I dont ever have the need to show actual threads of knurl the surface. Too much crunching for my little machine.

 

[Rasorr]

I want to make it on Part models, then how should I draw it? I don't have to draw it for Picturepurposes.
And I also have Question that Is threads and knurling required on part which we have to assemble?

Thanks you for ur response garymig

 

[wtb999]

check out the following video for constructing screw
threads with a helical sweep -

http://www.youtube.com/watch?v=MEavOkqurhw&feature=related

hope that helps!

 

[dr_gallup]

[url]http://www.mcadcentral.com/proe/forum/forum_posts.asp?TID=33 595&KW=knurl[/url]

Search is your friend. Learn it, use it.

 

[Rasorr]

Thanks, Now I knew how to Do threads and Knurling on part
But stills Question in mind

Is It require to show Threads and Knurling on Part which want to assemble ?<br style="font-weight: bold; font-style: italic;">




Edited by: Rasorr

 

[Søren Spætte]

Rasorr, could you rephrase/elaborate the question?

For manufacturing purposes, a cosmetic thread is the way;
that will show up on the drawing as the 'five minutes to
nine'-line inside the main contour; all more than that
would just be cluttering up your drawing.

For assembly purposes the best way is just an axis or a
cylinder... the assembly doesn't care about apperances.

The helical sweep would be used when doing an injection
moulded or rapid prototyping part where you need the
actual geometry.

 

[krow72]

Rasorr - it is not required to show threads and knurling on parts for assembly. It would only be necessary if you are going to create life like renderings of your part.