02 June 2012

wanna tri? - cutting the triangles


Next step in the wanna tri? play-along is showing my way of cutting the equilateral triangles from 8" strips:

Cutting 7 triangles from a 1/4" yard


 start by folding the selvedges together, iron the fabric and cut an 8" strip


with the strip folded you will cut 2 layers of fabric
line up the triangle ruler on the fold, and make the first cut

turn the triangle ruler and make three more cuts

use your regular ruler and make the last cut 1/2" from the top point of the half-triangle
this will give you 2 shapes for the end of the rows

unfold the first piece, press the fold out of the fabric and square it up with the triangle ruler

there should now be 7 triangles plus 2 half - triangle shapes

Cutting 6 triangles from a FQ:

 iron the fabric and cut two 8" strips

important: place the the two strips wrong side of fabric together,
straighten up the edge of both layers, and place the triangle ruler so that you will have an extra 1/2" on the left of the first half-triangle shape (mirroring the end shape)

cut out three full sets of triangles, and make another set of mirrored half-triangle shapes

there should now be 6 triangles plus 2 half - triangle shapes

Cutting 14 triangles from a 1/2 yrd:

start by folding the selvedges together, iron the fabric and cut two 8" strips

place the two strips on top of each other, there will be 4 layers of fabric
line up the triangle ruler on the fold, and make the first cut, then three more
use your regular ruler and make the last cut 1/2" from the top point of the half-triangle
this will give you four shapes for the end of the rows 


unfold the first piece, press the fold out of the fabric and square it up with the triangle ruler
there should now be 14 triangles plus 4 half - triangle shapes


How many triangles do I need to cut?

Large size 72" by 72" has a layout of 16 a row for 10 rows: 160 triangles + 20 end shapes

Medium size 59" by 72" has a layout of 13 a row for 10 rows: 130 triangles + 20 end shapes

Small size 50" by 65" has a layout of 11 triangles a row for 9 rows: 99 triangles + 18 end shapes


So what's next?

I am planning my next post to be about the puzzle of the pieces, placing the triangles on the design wall, trying out different patterns: diamonds, random, diagonal lines, zig zag ... I will post as soon as I have pictures to share.

The next step is where all the fun begins...

; )))





4 comments:

nicolette at dutchcomfort said...

It’s hard to resist this tri-along Marit! I first need to buy an 8" triangle ruler. Any suggestions?

Teje said...

Hi Marit! I love your fabric choises! I want to join you, but can't manage time for that now. Still I'm sure I will make a quilt like yours - one day! x Teje

Alexis said...

Thanks for this! I have been wanting to make a quilt like this for ages, these instructions are so helpful!!!

Harmony Hopes Studio said...

I can have it perfect on the design wall, but, something can go amiss between the wall and the sewing machine...I call it the fabric demons. The second one I made I can't remember the numbering sequence but I concocted something and it was less frustrating. That was a number of years before the triangular rulers and cutting wheels. LOL. I love how our "art" has evolved. I have to make a couple if baby quilts, do you have any favorites to suggest?