Hello,
What is the preferred method for woodworkers to increase lengths and keep
the angles the same. For instance, let's say a saw horse is twelve inches
tall. The legs are angled at 15 degrees. The builder wants the same saw
horse design but at it 27 inches tall. I would figure the new leg lengths
based on a triangle. What other ways of figuring lengths on angles are
there for woodworkers? Are there any websites with this information? I
could not find any.

Christopher

Christopher wrote:
| Hello,
| What is the preferred method for woodworkers to increase lengths
| and keep the angles the same. For instance, let's say a saw horse
| is twelve inches tall. The legs are angled at 15 degrees. The
| builder wants the same saw horse design but at it 27 inches tall.
| I would figure the new leg lengths based on a triangle. What other
| ways of figuring lengths on angles are there for woodworkers? Are
| there any websites with this information? I could not find any.
|
| Christopher

If the angles are known, then trig is the tool. If the angles aren't
known you can measure them and use trig. If you can't measure one of
the angles, you can copy it using a bevel gauge or with a pair of
dividers.

If h is the desired height of the sawhorse and L is the length of a
leg, then you can calculate L = h / sin 75

I have a trig "cheat sheet" stashed away at
http://www.iedu.com/DeSoto/CNC/trig.html that you're welcome to use.

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

The easiest way is to make a scale drawing of what you have and what you
want.

"Christopher" wrote in message
...
Hello,
What is the preferred method for woodworkers to increase lengths and keep
the angles the same. For instance, let's say a saw horse is twelve inches
tall. The legs are angled at 15 degrees. The builder wants the same saw
horse design but at it 27 inches tall. I would figure the new leg lengths
based on a triangle. What other ways of figuring lengths on angles are
there for woodworkers? Are there any websites with this information? I
could not find any.

Christopher

"Christopher" wrote in message
Hello,
What is the preferred method for woodworkers to increase lengths and keep
the angles the same. For instance, let's say a saw horse is twelve inches
tall. The legs are angled at 15 degrees. The builder wants the same saw
horse design but at it 27 inches tall. I would figure the new leg lengths
based on a triangle. What other ways of figuring lengths on angles are
there for woodworkers? Are there any websites with this information? I
could not find any.

My "preferred" method these days is my CAD program. Takes less time to fire
it up than it does to do the math/trig, at least at my age.

--
www.e-woodshop.net
Last update: 6/1/07
KarlC@ (the obvious)

In article , "Christopher" wrote:
Hello,
What is the preferred method for woodworkers to increase lengths and keep
the angles the same. For instance, let's say a saw horse is twelve inches
tall. The legs are angled at 15 degrees. The builder wants the same saw
horse design but at it 27 inches tall. I would figure the new leg lengths
based on a triangle. What other ways of figuring lengths on angles are
there for woodworkers? Are there any websites with this information? I
could not find any.

The proportions stay the same -- just increase the lengths of the legs, and
the distance between them at the floor, to 27/12 times the current
measurements.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

Morris Dovey wrote:


If the angles are known, then trig is the tool. If the angles aren't
known you can measure them and use trig. If you can't measure one of
the angles, you can copy it using a bevel gauge or with a pair of
dividers.

If h is the desired height of the sawhorse and L is the length of a
leg, then you can calculate L = h / sin 75

I have a trig "cheat sheet" stashed away at
http://www.iedu.com/DeSoto/CNC/trig.html that you're welcome to use.

The last time I used the sine of an angle was when the HR department
published its rules for benefit calculations.

"Doug Miller" wrote in message
et...
In article , "Christopher"
wrote:
snipped..

The proportions stay the same -- just increase the lengths of the legs,
and
the distance between them at the floor, to 27/12 times the current
measurements.

--
Regards,
Doug Miller (alphageek at milmac dot com)

I usually go the easy way and make a scale drawing.

Christopher

Take a look at http://www.sizes.com/numbers/triangles.htm

One of the calculations on that page will do it for you.


P D Q
"Christopher" wrote in message ...
Hello,
What is the preferred method for woodworkers to increase lengths and keep
the angles the same. For instance, let's say a saw horse is twelve inches
tall. The legs are angled at 15 degrees. The builder wants the same saw
horse design but at it 27 inches tall. I would figure the new leg lengths
based on a triangle. What other ways of figuring lengths on angles are
there for woodworkers? Are there any websites with this information? I
could not find any.

Christopher

HeyBub wrote:
| Morris Dovey wrote:
|
||
|| If the angles are known, then trig is the tool. If the angles
|| aren't known you can measure them and use trig. If you can't
|| measure one of the angles, you can copy it using a bevel gauge or
|| with a pair of dividers.
||
|| If h is the desired height of the sawhorse and L is the length of a
|| leg, then you can calculate L = h / sin 75
||
|| I have a trig "cheat sheet" stashed away at
|| http://www.iedu.com/DeSoto/CNC/trig.html that you're welcome to
|| use.
|
| The last time I used the sine of an angle was when the HR department
| published its rules for benefit calculations.

Since you're using Outlook Express as your newsreader, I know you have
a calculator handy to make sine calculations easy.

The other easy method would be to measure the leg length on your 12"
sawhorse and do a proportion calculation, but you'd end up using the
calculator there, too.

As usual, there's more than one way to skin this cat. Choose the
method you're most comfortable with. :-)

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/interest.html

In article , "Christopher" wrote:

"Doug Miller" wrote in message
. net...
In article , "Christopher"
wrote:
snipped..

The proportions stay the same -- just increase the lengths of the legs, and
the distance between them at the floor, to 27/12 times the current
measurements.

I usually go the easy way and make a scale drawing.

To me, doing the calculation involving such a simple proportion *is* "the easy
way". Scale drawings are time-consuming; calculations are quick. YMMV.

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

"Morris Dovey" wrote

Since you're using Outlook Express as your newsreader, I know you have
a calculator handy to make sine calculations easy.


Where do they hide the calculator in OE? I have not seen it.

DanG wrote:
Start
All programs
Accessories
Calculator

Once started, in View you can change to a scientific calculator
with the trig keys.


Woohoo! I just met my quota of one new thing learned per day!
Unfortunately, I'm running 7 years behind.

Bill

--
I'm not not at the above address.
http://nmwoodworks.com


---
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DanG wrote:
| Start
| All programs
| Accessories
| Calculator
|
| Once started, in View you can change to a scientific calculator
| with the trig keys.

If you use the calculator frequently, you can follow the path DanG
provided to find the little bugger, then right click on its icon and
drag it back to the "Start" menu. I'd suggest choosing the "Create
shortcut" option, then right clicking on the shortcut icon and
selecting "Rename" so you can call the shortcut "Calculator".

Once you've changed calculator to scientific mode, it'll stay that way
forever (or until you select View and change it back.)

If I used it _really_ often, I'd drag it down to the "launch pad"
(next to the Start button).

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

"Morris Dovey" wrote

If you use the calculator frequently, you can follow the path DanG
provided to find the little bugger, then right click on its icon and
drag it back to the "Start" menu. I'd suggest choosing the "Create
shortcut" option, then right clicking on the shortcut icon and
selecting "Rename" so you can call the shortcut "Calculator".


I always have trouble seeing those little calculators in the OS. I have
some solar powered LCD calculators that are impossible to read. I never
looked for a big one to use on the computer.

What I use is and ancient LED display unit with big numeric display. It is a
power hog and requires two D cells to run it. It takes more power than my
flashlight.

But I can see it from across the room. And the keys are nice and big.
Everything else pales in comparison.

I must come across like I'm really old. After all, how old do you have to
be to have an ancient LCD calculator?

feelin' the arthur itis actin' up ;-)

Morris Dovey wrote:
If I used it _really_ often, I'd drag it down to the "launch pad"
(next to the Start button).

Or when you get inspired to buy a new keyboard (after too many woodworking
posts that elicit spewed coffee) a $15 Microsoft keyboard with a calculator
key (as well as others) works pretty slick for a quick launch....Rod

"Lee Michaels" wrote in message

What I use is and ancient LED display unit with big numeric display. It is
a power hog and requires two D cells to run it. It takes more power than
my flashlight.

Morris' had better be solar powered!

.... mine is.

--
www.e-woodshop.net
Last update: 6/1/07
KarlC@ (the obvious)

Lee Michaels wrote:

| What I use is and ancient LED display unit with big numeric
| display. It is a power hog and requires two D cells to run it. It
| takes more power than my flashlight.

I still have an old HP with LEDs - but the key legends and display
digits are so small that I can't use it if I'm not wearing glasses. If
I have my glasses in place, I can use the one on the computer. 8-)

I'm not looking forward to the day when I'll need to install the
magnifying glass software. 8-/

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

Swingman wrote:
| "Lee Michaels" wrote in message
|
|| What I use is and ancient LED display unit with big numeric
|| display. It is a power hog and requires two D cells to run it. It
|| takes more power than my flashlight.
|
| Morris' had better be solar powered!

:-(

| ... mine is.

Ok, ok - you suck!

;-)

--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

On Jul 15, 2:13 am, "Christopher" wrote:
Hello,
What is the preferred method for woodworkers to increase lengths and keep

Christopher

The CALCULATOR IN WINDOWS is located in the Progrms; Acessories menu.
Find it, RIGHT CLICK on it and select Pin To Start Menu, then it will
be avaialbl easily.

Morris Dovey wrote:
Lee Michaels wrote:

| What I use is and ancient LED display unit with big numeric
| display. It is a power hog and requires two D cells to run it. It
| takes more power than my flashlight.

I still have an old HP with LEDs - but the key legends and display
digits are so small that I can't use it if I'm not wearing glasses. ...

I found an old (and fully functional including the tape printer and mag
card reader!) HP 97 on eBay a couple of years ago for the same reason...

Little hard to put in the pocket , but it lives right here beside the
terminal...

--