Platinum moment -- need help please!
10-07-2009, 09:03 AM
#11
Power Poster
Join Date: Mar 2009
Posts: 15,639
Originally Posted by LucyInTheSky
Ex: If my hyp is 7, each leg is 7 / sqrt(2) or about 4.95 (and if you think about this, this makes sense since it's close to what we figured out in the above one).
10-07-2009, 09:20 AM
#12
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Join Date: Aug 2009
Location: Oregon
Posts: 2,199
OMG! Do you have the 20 1/2" square Omnigrip ruler? If so, look at the size of block you are cutting. Whether it be 12" or 20". There are numbers at the point in the ruler that tell you what size to cut. The larger number is the one you use for the side triangles because you cut it on the diagonal both ways. The smaller number is for the corners, as you only cut it once on the diagonal.
Does that make sense. I was so excited when I was told what those numbers meant. I never can remember what size to cut either. Right now it is only on the 20 1/2" ruler. They are making rulers now that will have it on the smaller ones.
If you tell me what size your block is I can tell you what size to cut. (As long as the center isn't larger than 20 1/2")
Does that make sense. I was so excited when I was told what those numbers meant. I never can remember what size to cut either. Right now it is only on the 20 1/2" ruler. They are making rulers now that will have it on the smaller ones.
If you tell me what size your block is I can tell you what size to cut. (As long as the center isn't larger than 20 1/2")
10-07-2009, 01:53 PM
#13
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Join Date: Sep 2009
Location: Seattle
Posts: 1,743
Originally Posted by MadQuilter
Lucy, thank you for making me snort coffee out of my nose. I spedread over the explanation and came to "if my HIP is 7 and my LEG is 7 and my mind finished it off with: then my BUTT is square ROFL.
10-08-2009, 08:18 AM
#15
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Join Date: May 2009
Location: San Francisco Bay area
Posts: 1,419
CindyBee's link is great. The only thing I do different is that I don't mess around with 1/8" markings. If something says 7/8 or 5/8, I just round up to the nearest inch. This gives me a 'margin of error' When my triangle is put together I have enough left over to square off. It never fails.
10-09-2009, 10:26 AM
#18
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Join Date: May 2008
Location: Louisiana
Posts: 6,764
This is really great information. I didn't try all of the links, but Quiltbug.com and quiltville.com are great. Naturally I've printed the info to post on my bulletin board. Math is not my strength.
Thanks to all who contributed.
Thanks to all who contributed.
10-09-2009, 11:59 AM
#19
Super Member
Join Date: Dec 2006
Location: So. California
Posts: 3,769
Looks like you got lots of help already....but just for chuckles, this is what I did the very first time I needed setting triangles - I got out the newspaper & laid my block onto it. Then I drew a triangle that was big enough to fit it & added more than enough extra for seam allowances. Then I used that as my pattern & cut out the setting triangles. I folded them in half & marked the center of the long edge, then matched that to the center of my block side, pinned & sewed & then trimmed the excess. Worked out just fine! :lol:
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