Is trimming points before sewing a waste of time? I've always thought so, and I still do, but when sewing a trapezoid piece to a quarter square triangle to make this frame for my old blocks, there are two places that must line up perfectly.
Here's what the finished piece should look like--straight on the bottom, and with a quarter inch seam allowance at the top so you don't lose the point. Eye-balling the placement for this is hard. Believe me I know.
So I thought I'd give Judy Martin's point trimmer tool a try, and I'm a believer, at least for this. It took some experimentation for me to work this out, so in case anyone else needs to do the same thing, here's what I learned.
To trim the 45 degree angle on the trapezoid that goes at the top of the join, I used the C trim, lining it up with the point of the triangle.
The triangle has its tip cut off, also with the C trim. (If you use a quarter-square triangle tool, the tip is already cut off. More about that another time.)
Then use the B trim to cut off the 45 degree points, like so.
When the pieces are lined up for sewing, they look like this, a perfect match:
And the result is also perfect, or almost:
You just repeat the process with the other side.
Now this is rather tedious, I certainly admit. But it makes the sewing so much faster that I think it's worth it. But I still wouldn't want to trim hundreds of these pieces like that, would you?