Originally Posted by
Honchey
When you press it to the corner , you mean open & press the HST then trim the inside little triangle & discard..?
Yes! But before cutting anything off I press-- using the corner of the bottom square to 'square up' the top hst. Once I have that pressed I can cut away the two excess triangle layers, leaving the 1/4" seam allowance.
I do that whenever I add corners on blocks too, like for snowball blocks. Use the original corner to square up the new corner. Sometimes I only cut away the middle layer, leaving the original bottom piece there.