Drawing Large Angles Using a Ruler, Yardstick or Tape - Router Forums
 
LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 02-04-2015, 06:16 AM Thread Starter
Registered User
 
Dejure's Avatar
 
Join Date: Jul 2009
Country: United States
First Name: Kelly
Posts: 613
 
Default Drawing Large Angles Using a Ruler, Yardstick or Tape

With your line ran between the two legs, mark eight inch or other chosen increments on it for the forty-five degree marks.

When marking degree points, mark critical positions, such as 90, 72, 60, 45, 30 and 22-1/2 degrees for easy location in the future.

Using this, you can mark any angle accurately. You can use a chalk line to mark the angle, if desired.


I'd like to see how others do it.

The reason I have what you want is, I never lent it out before.

Scraps are a myth.
Dejure is offline  
Sponsored Links
Advertisement
 
post #2 of 4 (permalink) Old 02-04-2015, 06:37 AM
Moderation Team
 
Cherryville Chuck's Avatar
 
Join Date: Sep 2010
Country: Canada
First Name: Charles
Posts: 14,870
 
Default

If possible I use rise and run instead. If I needed a really big angle I would probably just do the trig calculations for the legs. For small to mid size 45*s I usually a (triangle type) speed square. For large ones I measure equal legs. There are a lot of methods I imagine so it's whatever makes sense and is the most comfortable for the individual.

Someone I consider a master woodworker once told me that a master woodworker is not someone who never makes mistakes. He is someone who is able to cover them up so that no one can tell.
Cherryville Chuck is offline  
post #3 of 4 (permalink) Old 02-09-2015, 09:47 AM Thread Starter
Registered User
 
Dejure's Avatar
 
Join Date: Jul 2009
Country: United States
First Name: Kelly
Posts: 613
 
Default

So, if you would, ramble a bit more about your rise and run method.

After some checking, my way only works for certain angles.

I suppose one could build a chart, using rise and run, for any angle from zero to ninety and using a leg length that would be easy to multiply to calculate for, say, either a ten inch long layout or a ten foot long one.

Please keep in mind, many of us never [knowingly] used trig or calculus, in school or otherwise, just as most have never used many of the things I or others use and take for granted.

Quote:
Originally Posted by Cherryville Chuck View Post
If possible I use rise and run instead. If I needed a really big angle I would probably just do the trig calculations for the legs. For small to mid size 45*s I usually a (triangle type) speed square. For large ones I measure equal legs. There are a lot of methods I imagine so it's whatever makes sense and is the most comfortable for the individual.

The reason I have what you want is, I never lent it out before.

Scraps are a myth.
Dejure is offline  
Sponsored Links
Advertisement
 
post #4 of 4 (permalink) Old 02-09-2015, 11:17 AM
Registered User
 
Ghidrah's Avatar
 
Join Date: Oct 2008
Country: United States
First Name: Ronald
Posts: 1,466
 
Default

C√=aČ+bČ

ex.
a= run, b= rise, C= hypotenuse.
a=10', b=10'
aČ=100, bČ=100
aČ+bČ=200
C√=14.142135xxxxxx
solve C by squareroot
This method gives you the length of the hypotenuse, because a&b are equal lengths the a/C and b/C angles are 45° If you're looking to discover the angles in degree you need a diff formula
Attached Images
 

Never bite the hand that looks dirty!
The more you know the more you're worth

Last edited by Ghidrah; 02-09-2015 at 11:21 AM.
Ghidrah is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Router Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Testing Peachtree double-sided tape Gaffboat Tools and Woodworking 22 11-17-2014 09:05 PM
A suggestion from Maurice harrysin Woodturning and Lathes 48 12-08-2013 09:16 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome