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General Category => General Scroll Saw Talk => Topic started by: Gabby on February 23, 2011, 09:14:36 pm
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http://www.onlineconversion.com/
Hope you find this useful. If someone has better links feel free to add them here for others to use.
Gabby
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is it this hard?
1 inch = 2.54cm
1 feet = one dozen inch = 12 x 2.54cm = 30.48cm
1 yard = 3 feet = 3 x 12 x 2.54cm = 91.44cm
And in general you should get to metric values as fast as you can. It's so much simpler.
But I think there was a initiative in the 1860's which didn't get through - nobody knows why: Metrication in the US @ wikipedia (http://en.wikipedia.org/wiki/Metrication_in_the_United_States)
But even the NASA can't get it right: clickedy @ NASA-Watch (http://www.nasawatch.com/archives/2010/02/nasa-still-cant.html)
regards
Torsten
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the second problem is the thickness of the wood.
in Holland we have the plywood thickness: 3.6, 5.5, 9, 12, 15, 18, 22, 25
and MDF: 6, 8, 10, 12, 16, 18, 22, 25, 28
The most common sizes of plywood sold in the United States are 3/4", 1/2" and 1/4".
However, that's not exactly correct.
A 3/4" sheet of plywood is really 23/32" (and is now typically labeled as such).
Similarly, 1/2" should be correctly labeled as 15/32" and 1/4" labeled as 7/32".
| inch | */32 | mm |
| 1/1 = | 25,40 = | 25.40 |
| 3/4 = | 18,25 = | 19,05 |
| 1/2 = | 11,90 = | 12.70 |
| 1/4 = | 5,50 = | 6.35 |
so quit a challenge to convert a pattern were you put pieces together.
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Here is a chart you can use. Also while you are there, check out the rest of the site. Allot of good information. 8)
Millimeter-Fraction-Inch Chart (http://sawdustmaking.com/Free%20Charts/MillFractInch.pdf)
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Dog gone! I was just trying to make it easier for us "older" folks that grew up on "Imperial" measurements, and don't know or really give a darn about metric, but need to convert all that gobbledygook (spell check even recognised that as a word) to something we can understand and measure with the tools from the hardware store that still come in feet and inches, here in the USA.
Gabby
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Don't worry Gabby, we in NZ converted to metric and yes I do believe it is easier.
But I never convert between the two, If a pattern or plan is in metric I cut/make it in metric and if in imperial I make/cut it in imperial.
A couple of years back (more than I care to remember) I done the convert thin g and balls up completely, never again.
Stick with one or the other.
***Merlin***
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I'm with Merlin. I use whatever the pattern was created in. It is much easier to use measuring tools that are in metric that to convert every measurement into metric.
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Don't worry Gabby, we in NZ converted to metric and yes I do believe it is easier.
But I never convert between the two, If a pattern or plan is in metric I cut/make it in metric and if in imperial I make/cut it in imperial.
A couple of years back (more than I care to remember) I done the convert thin g and balls up completely, never again.
Stick with one or the other.
***Merlin***
Totally with you on this one Merlin only once did the conversion thingy and made a total mess of things. Have a nice tape measure with both measurements, so just the thickness is not the same as Marcel stated but that's normally not a big problem to overcome.
David
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I watch a little TV mostly educational ;) but a lot of them refer to KM which I think is 7/10's of a mile. Is that correct?
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I have a ruler what has on one side mm and the other side inches.
A scoll saw blade is 130 mm or 13 cm. Here in the US they call it 5 inches that is incorrect
it is. 5 by 1/8 inch. All Baltic Birch comes in meters or cm.The kids in school would learn a lot faster when using mm.
FD Mike
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I watch a little TV mostly educational ;) but a lot of them refer to KM which I think is 7/10's of a mile. Is that correct?
Here is whar the conversion table showed!
1 kilometer = 0.621 371 192 24 mile
Gabby
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Mike, you're right about kids learning faster if we used the metric system here, as it is much simpler once you understand it. I studied radio and electronics for a few years and almost all of it was using the metric system, powers of 10, etc. The problem is getting people to learn a new system. That's why the conversion effort here failed in the '70's. Our minds immediately try to convert back to gallons, feet, inches, etc., making the process more complex. It's a bit like trying to teach an old dog new tricks..lol.
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People would scream if gas stations put up the price in liters.
FD Mike
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People would scream if gas stations put up the price in liters.
FD Mike
AAAAGGHHHHH, I scream because I look at the gas price in liters ;)
1 gallon = 3,78 Liter // 1 euro = $ 1,37 so:
1 Liter gas95= ? 1,68 * 3,78= ? 6,35 = $ 8,77 p/gallon !
1 liter Super plus= ? 1,75 * 3,78= ? 6,61 = $ 9,06 p/gallon !
1 liter diesel= ? 1,39 * 3,78= ?5,25 = $ 7,20 p/gallon !
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My take on all the controversy is it's a matter of what you grew up with, much as language. We all know about different cultures being unable to make certain sounds. I personally can envision what an inch or a foot or fractions of them looks like with pretty close results. However I can't visualize metric measurements. I still have to pull out my tapemeasure which has both scales in order to see what is being described.
It's a PITA=pain in the posterior, ;D
for me!
Gabby
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Back at the top Torsten gave us a NASA link.
If I remember correctly a few years back when the satellite was lost on Mars, both sides of the Atlantic were in on it and they forgot to sync their measurements! The computer could not handle the differences. Bye bye satellite and MILLIONS of dollars. Oops!
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When Jimmy Carter became president he said he'd have the US on metric by 1980, just one of the things he didn't get done. Now we're stuck with wondering which side of the scale/ruler to use. :'(