ShellyQ

Matching the Points

We are unable to get a nice butted seam when joining the half square triangle units into pairs, so to get a really good match on the points I find it helpful to machine baste the join.

Lay the units out in pairs as shown
Set your machine stitch length much bigger than normal
Match up the points and sew a 1/4 seam just over the join for a short way.
Remove from machine and check your join.
If you are happy with your join reset stitch length and sew seam as normal (Pic 3a-c)
If you are unhappy with your join, remove basting, adjust placement and re-baste.

I often use this technique to get a good match at seams and joins, the advantages are that you can open out your units fully to check placement, machine basting is easy to remove and if you like the fit pieces will not shift while piecing once they are machine basted