In article <[email protected]>,
<[email protected]> wrote:
>I just finished looking at the plans to build Jake's Chair. The
>dimensions were given in decimal form. There were several decimals
>though that I didn't recognize such as .9 and .6. How are these
>measurements figured?
"Badly". <grin>
You can get strange things like that if the original was in metric units,
with a 'clueless' conversion to ft/inches.
And, of course, there _are_ rulers marked in decimal fractions of an inch.
Relatively uncommon, but they *do* exist.
If somebody uses 1 decimal place for things in "1/8ths", you typically
get decimal parts of: .0 .1 .2 .4 .5 .6 .8 (sometimes .7) and .9
What you're actually dealing with is anybody's guess.
[email protected] wrote:
>
> I just finished looking at the plans to build Jake's Chair. The
> dimensions were given in decimal form. There were several decimals
> though that I didn't recognize such as .9 and .6. How are these
> measurements figured?
That sucks if in inches--if metric, makes sense....
To convert to nearest 8th, 16th or 32nd...
0.9*8 = 7.2
0.9*16 = 14.4
0.9*32 = 28.8
Depending on how anal you are you can choose...
For me, I'd look at the 0.8 and figure it was sorry CAD formatting and
figure it was actually 0.875 rounded which would have been 7/8". 0.6
was probably 5/8".
99.999999% of the time .875 is .88 in 2 decimal places, and one place is
most likely .9.
Brian.
--
www.members.cox.net/bsnikitas
"Duane Bozarth" <[email protected]> wrote in message
news:[email protected]...
> [email protected] wrote:
> >
> > I just finished looking at the plans to build Jake's Chair. The
> > dimensions were given in decimal form. There were several decimals
> > though that I didn't recognize such as .9 and .6. How are these
> > measurements figured?
>
> That sucks if in inches--if metric, makes sense....
>
> To convert to nearest 8th, 16th or 32nd...
>
> 0.9*8 = 7.2
>
> 0.9*16 = 14.4
>
> 0.9*32 = 28.8
>
> Depending on how anal you are you can choose...
>
> For me, I'd look at the 0.8 and figure it was sorry CAD formatting and
> figure it was actually 0.875 rounded which would have been 7/8". 0.6
> was probably 5/8".
[email protected] wrote:
> I just finished looking at the plans to build Jake's Chair. The
> dimensions were given in decimal form. There were several decimals
> though that I didn't recognize such as .9 and .6. How are these
> measurements figured?
An "Engineers Scale" is calibrated in decimel form; however, It is only
12" long.
Not the answer to a maiden's prayer, but used in conjuction with a 12 ft
tape, will get the job done.
Lew
I think they are rounded off. .9 is likely .875 or 7/8, .6 is likely .625,
or 5/8.
<[email protected]> wrote in message
news:[email protected]...
>I just finished looking at the plans to build Jake's Chair. The
> dimensions were given in decimal form. There were several decimals
> though that I didn't recognize such as .9 and .6. How are these
> measurements figured?
>
In article <[email protected]>, [email protected] wrote:
>I just finished looking at the plans to build Jake's Chair. The
>dimensions were given in decimal form. There were several decimals
>though that I didn't recognize such as .9 and .6. How are these
>measurements figured?
>
Probably converted from metric measurements.
If you want them in fractional inches, multiply by 64 to get 64ths, e.g. 0.9 *
64 = 57.6 so 58/64 or 29/32. Similarly, 0.6 * 64 = 38.4 so 38/64 or 19/32.
Double-checking: 29/32 = 0.906; 19/32 = 0.594. Within six-thousandths each
time - probably close enough.
If not, multiply by 128 instead: 0.9 = 115/128, and 0.6 = 77/128 (both
accurate within two thou).
--
Regards,
Doug Miller (alphageek at milmac dot com)
It's time to throw all their damned tea in the harbor again.
I've got a 6 footer, marked in 1/100.
"Lew Hodgett" <[email protected]> wrote in message
news:[email protected]...
> An "Engineers Scale" is calibrated in decimel form; however, It is only
> 12" long.
On 14 Jul 2005 10:26:05 -0700, [email protected] wrote:
>I just finished looking at the plans to build Jake's Chair. The
>dimensions were given in decimal form. There were several decimals
>though that I didn't recognize such as .9 and .6. How are these
>measurements figured?
Here's a site that might help.
http://www.cjtkoolcarb.com/catalog/Technical/decimalconversion.htm
Mike O.
In article <[email protected]>,
"Rumpy" <[email protected]> wrote:
> I think they are rounded off. .9 is likely .875 or 7/8, .6 is likely .625,
> or 5/8.
If they're not rounded then I do it when I made it - just figure .9 is
7/8" and .4 is close enough to 7/16" to not make much difference in
building the chairs. It's not a matter of following the actual
dimensions in the plans to the decimal point, but making components with
the same specs the same dimensions.
--
Owen Lowe
The Fly-by-Night Copper Company
__________
"I pledge allegiance to the flag of the
Corporate States of America and to the
Republicans for which it stands, one nation,
under debt, easily divisible, with liberty
and justice for oil."
- Wiley Miller, Non Sequitur, 1/24/05