I wonder... TriRec rulers
 

I wonder why the TriRec rulers are not labeled as to the angle they cut or provide. I have had need of 2 different angles this week a 45 and a 60 degree and tried the TriRec rulers and neither one worked. But there is no label either on the ruler or the packaging. I need to understand those rulers, I guess.

I went through the same process years ago of having to determine what angle those rulers were, or rather what angle they weren't. (They weren't the angles I needed.) It's frustrating.

Do you have square rulers? They should have those angles marked on them.

If you have a 6x12 or longer ruler, it will have lines marked 45 degrees and 60 degrees. If you are unsure how to place them to cut the angle, just youtube it. But remember that the cuts will be (mostly) diagonal so treat the edges of the fabric gently. A square ruler should have the 45 degree marked. It is 1/2 of a 90 degree angle.

I Think they are 72 degrees, but I could be remembering wrong.

I think the angle is 53*, but I don't know why I think that. And I don't have a protractor in the house.

ETA: I did a search on the QB and found this thread: https://www.quiltingboard.com/main-f...e-t253828.html . Take a look at post 13 by bearisgray.

I too almost got rid of mine as I couldn't figure out what they were or why the heck I bought them. They sat unused for a long time, then all of a sudden I was finding patterns that required them. If I remember right, Bonnie Hunter was using them before she came out with her own.

I had never used the Tri-Rec rulers until I did a Bonnie Hunter Mystery. She is an expert on these rulers and has videos on her Quiltville website. She makes it easy with her instructions. Prior to these videos I was terrified of these rulers and did not know how to use them at all.

i do not know how to post a link from my phone - but in august 2015 i posted a "triangle comparison" in tutorials. post #4 illustrated the differences better than the first post does.

The tri-rex rulers are made specifically for a purpose-star legs. I have used them from time to time but I do think they are limited in use because the multiples do not form recognizable configuerations.

Thanks - good to know!

The TriRec ruler is different than Bonnie Hunter's. It creates a triangle in a square, and Bonnie's is used for half square and quarter square triangles.

Deb Tucker also makes a ruler for this unit, called the V-block trimmer, if you prefer cutting a bit large and trimming down.

Jenny on MSQC shows how to make this unit without any templet.
It's her tutorial called 54 -40 or fight free style. It starts about 1320 on utube.

I love the tri-rec ruler, but have used it exclusively to make stars .

besides stars, I'm used the tri-rec ruler for the border--makes some nice points. For some reason I think they are a 72degree angle also. I'm not where I can measure right now, but remember that it's some weird number.

Thank you for all the info on these rulers. They definitely will be put to the side for the meantime and I'm back to looking for that elusive 45 degree ruler that I need for a kaleidoscope pattern. I did discover that if I use the one TriRec and angle the ruler just a bit (maybe 1/4") in at the bottom, I have a "rough" 45" triangle and it works. It wasn't tremendously accurate but it worked for a trial run on this pattern. I'd like to have the actual ruler though. I did discover that the TriRec made a block with 7 wedges though! That works for a table piece anyhow.

I have the tri-rec ruler, and like others have said, it's for a very specific block and it's a "strange" angle because of that.

I love angle rulers

http://i31.photobucket.com/albums/c3...psksaphj7f.jpg

http://i31.photobucket.com/albums/c3...pssx6pvweh.jpg

If you take a square and divide it in half diagonally, you will end up with a triangle that has one 90 degree angle and 2 45 degree angles. So, that's one way to get a 45 deg angle without a protractor. I see protractors at dollar stores a lot, in case anyone wants one.