×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Finding pitch from degrees
2

Finding pitch from degrees

Finding pitch from degrees

(OP)
Wondering if anyone can help me with this. I need the formula to solve this equation for x.

25.8443=arctangent of x/12

 

RE: Finding pitch from degrees

x = 12 * tan(25.8443)

RE: Finding pitch from degrees

(OP)
Thanks dawg. I knew it had to be a simple transition.  

RE: Finding pitch from degrees

And how long has your calculator been broken??

RE: Finding pitch from degrees

Is that

25.8443=arctan(x/12)

or

25.8443=[arctangent(x)]/12

Actually, Mike, I was wondering what was going on in thorny's trig class.

 

RE: Finding pitch from degrees

(OP)
"And how long has your calculator been broken??"

Just wanted to see what the equation looked like with x isolated. The calculator comes in play after I understand the method.

ACtrafficengr, It's 25.8443=arctan(x/12). I just couldn't remember how to move the arctan to the other side.

Doug

RE: Finding pitch from degrees

AC - good point -----

If you don't understand - pull out the old TRIG book and warm it
up!!

I do these in my sleep trying to got to sleep.

RE: Finding pitch from degrees

(OP)
MiketheEngineer wrote,
"I do these in my sleep trying to got to sleep."

Nice Mike. I don't have time to do trig while I'm sleeping, too busy writing spreadsheets. I should give it a try tho. Seems like it'd be a lot easier. I might get some rest!
 

RE: Finding pitch from degrees

Basically you take the tangent of both sides knowing that this does not change the quality.  tan of arctan cancels out and then you multiply both sides by 12 and voila!

RE: Finding pitch from degrees

I guess the formula for the lead angle of threads, if you are after the lead angle or any of unknown in the formula, shoud be:

tan(lamdha)= pitch/(pi*pitch diameter)

Otherwise you need to define the angle you are using.

Kind regards,

Ibrahim Demir

 

RE: Finding pitch from degrees

(OP)
Thanks for the replies. I needed this formula for a spreadsheet. I used it, among others, to find the pitch of a valley rafter. In this case the two roofs that form the valley do not have like pitches. It works fine.

Thanks again.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources