×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Are you an
Engineering professional?
Join Eng-Tips Forums!
• Talk With Other Members
• Be Notified Of Responses
• Keyword Search
Favorite Forums
• Automated Signatures
• Best Of All, It's Free!

*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.

# Can't remember how to calculate an ARC LENGTH in C/K99

## Can't remember how to calculate an ARC LENGTH in C/K99

(OP)
I am trying to remember how to use C/K99 to calculate the distance between two points on a circle.  The circle is Ø1.16250" and the circumference is 3.625".  The two points are located 129.611° apart from each other, so how do I do this and what IS the arc length between the two points?  Thank you!

### RE: Can't remember how to calculate an ARC LENGTH in C/K99

129.611/360 x 3.625 = ARC LENGTH
Verify, Distance, 2 Points is the easiest method for the distance measurement.

### RE: Can't remember how to calculate an ARC LENGTH in C/K99

(OP)
Thank you! Thank you!! This is the second time you have helped me jog my memory.  I don't feel like I am 76 years old, but my memory continues to let me know. I'm quite sure that this is the primary reason I don't upgrade to K/C...just too much of the old dog and new tricks. I DID, however try the VERIFY DISTANCE BETWEEN 2 POINTS, and it kept giving me the chord measurement, which I didn't need, and I didn't remember how to get it to understand what I wanted.

Thank you, again for such a rapid response!! Warmest wishes!

Gene "2old2" Davis

### RE: Can't remember how to calculate an ARC LENGTH in C/K99

Data, Verify, Perimeter will also give the length as long as the actual arc is separate from the rest of the circle.

### RE: Can't remember how to calculate an ARC LENGTH in C/K99

(OP)
I'm happier than a pig in slop!!!

It's a GOOD DAY!!

Gene "2old2" Davis

### RE: Can't remember how to calculate an ARC LENGTH in C/K99

One thing should be pointed out is that 3.625 is not the circumference of a 1.1625 dia. circle, it's 3.652.  May be a typo.

### RE: Can't remember how to calculate an ARC LENGTH in C/K99

(OP)
Hey, old friend!  Yes, it was a typo, but when I realized it, it was too late to edit.  Thank you for the sharp eye!!  Good to hear from you, and THANK YOU for catching that!  I could have put the wrong dimension in if I hadn't caught it.

Best wishes!

Gene "2old2" Davis

#### 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.

#### Resources

White Paper - PLM and ERP: Their Respective Roles in Modern Manufacturing
Leading manufacturers are aligning their people, processes, and tools from initial product ideation through to field service. They do so by providing access to product and enterprise data in the context of each personâ€™s domain expertise. However, it can be complicated and costly to unite engineering with the factory and supply chain. Download Now

Close Box

# Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

• Talk To Other Members
• Notification Of Responses To Questions
• Favorite Forums One Click Access
• Keyword Search Of All Posts, And More...

Register now while it's still free!