Thursday, 19 June 2014

Half Square Triangle cushion covers - all done!

Part 2 of the making my half square triangle cushion covers. Once again I experimented with the turquoise cushion cover first…so this means the purple one should be mistake free … in theory! 

The front of the cushion I finished off like a mini quilt without the binding before making this into a full cushion cover.

For the 'mini quilt':
I used leftover sheeting scraps as the backing for the mini cushion quilt and a few smaller pieces of batting lined up alongside each other. 
backing fabric taped to floor & first piece of batting laid over this (I didn’t bother stitching the batting pieces together for such a small project)
 Then, as for any other quilt, place the top fabric on, pin through all 3 layers....

...and quilt away.  As I decided not to take the quilting all the way to the edge of the cover, I also used a long straight stitch to baste close to the edge of the cover to hold backing, batting and top layer neatly together.

Trim away excess batting & backing.

For the cushion backing:

My cushion measured 22” square.
Cut 2 rectangles of fabric 22” x 16”. Square these up well as they will then help square off the quilted front.

Take one rectangle (A) and along the short edge turn over ½ inch, press and then turn over another ½-1” and press again to hide the raw edge. Stitch to hold in place.

For the second rectangle (B), again turn over and iron approx 1/2” along the short edge. Then, turn over another 3” (or a little more) and press again. I didn’t stitch this second seam for this cushion, but I will next time.

Piece (A) with raw edge hidden and stitched in approx 1” seam. Piece (B) with ironed first seam and arrow pointing the (open) pressed 3” line
To assemble the cushion cover:
Place the quilted piece face up. Place backing piece B right side down as shown, matching raw edges to quilted piece (or placing squarely over top of quilted piece if the quilted piece isn’t properly square) and pin together.

Lay backing piece A right side down, overlapping where the cushion insert opening will be, and lining up with backing piece B where they overlap to keep square. Pin.

Sew front to back around all four edges, reinforcing at opening (where piece A & B overlap).

Trim excess batting etc and clip corners before turning right side out....

...and stuffing.

Sunday, 8 June 2014

Half square triangle cushion cover - Part 1

Half square triangles. Mmmm, every blog I read before I attempted my ‘HST’s’ made it appear these are easy. And perhaps they are…if you have measured perfectly, and cut just so, and sewn your ¼ inch seam with accuracy. But I can speak from experience & say that I for one am not so good at getting all three of those steps to work as well as perhaps they should. And that leads to half square triangles that don’t align perfectly in the corners. And that can be a little frustrating to say the least!
Thankfully I decided to start with a small project – a cushion cover – rather than a whole quilt. 

I wanted to use up some of my 5" charm square stash for these projects, matched to a coordinating plain fabric. Each cover ended up using 12 full charm squares and part of one extra square. I used the technique where you sew all the way around 2 squares with right sides together and then cut 2 diagonal lines to get 4 half square triangle squares.
The turquoise cover was my first attempt & I learnt a lot - even the second half of the turquoise cover has better aligning seams than the first, so I am optimistic that the second cushion cover in purple (using the same pattern) will be much improved technique wise.

There are plenty of blogs stepping through how to cut half square triangles, so I won’t reinvent that wheel. But I am going to jot down some of the key things I didn't find out readily from the net, and instead worked out through trial and error (with a few mutterings under my breath from time to time!!).

Cut 12 x (5 1/8”) squares from coordinating plain fabric (plus make one extra square). My charm squares never seem to be perfectly 5” or perfectly square, so I decided to cut the plain fabric squares at 5 1/8” to give me a bit of breathing space when stitching together. 

Place a charm square on top of a plain fabric square & stitch all the way around. I found it best to start stitching part way down one side (rather than in a corner) to avoid puckering where the stitching meets. And it was worth taking time to get the ¼” spacing accurate at each corner - sometimes I shortened the stitch length towards the corner to help with that.

 Cut from corner to corner to end up with 4 pieces as shown, Ideally these cut lines will be at a 45 degree angle to the sewn straight joining seams. Ideally!
Then open and press each triangle to get the HST squares. 
 The first big mistake I made with the turqoise cushion was deciding not to square up until I had sewn 4 squares together into a 2x2 block. Botheration & bollocks. For the purple cover I squares up the individual squares first & that worked way better. 
I lined up my 45 degree andgle on the ruler with the seam and then trimmed down the first 2 edges (right and top), making sure I still had room to trim when I turned to square up the final two edges (in my case 3 1/8")

Next, spin the square around, line up the angle line again as well as the 3 1/8" size markers on the edge and cut the square to the size you want.

Once all the squares were sewn, squared up and pressed  I decide on the design & took the all important picture.

I guess ideally I would have had an even number of squares but the size of the cushion needing covering dictated a 7x7 square cover. I worked in rows, sewing adjoining squares into pairs. When pressing I made sure to alternate seams either pressed to the left or right. This helped when then sewing up the 2x2 blocks.
This picture shows the pressed seams facing left and right while I sew together. Nestling them at the seam helped to get a good result. I do still wonder though if pressing open would be better with this pattern given you end up with so many seams where all the pieces meet.
Here is the work in progress (from bottom right working to the left). 2x2 completed blocks, adjoining pairs sewn together, adjoining pairs waiting to be sewn together etc.... And the trusty computer screen showing the design so I don't stuff up & have to unpick!!

A bit further along the way of joining squares together...

The final seam. I did find that once I was sewing more than 3/4 squares together in one go that pinning at the seams was definitely worth it to get good alignment.

Da da!

It's interesting that this is almost the same design as the turquoise one, but I like it so much more. Not because of the colours, but the fact the central square has the patterned fabric rather than the solid seems to work so much better.
Now the more tedious task of making them into cushion covers begins....