Jacobs ladder - out of square- please help
09-06-2011, 03:02 PM
#11
Super Member
Join Date: Jul 2010
Location: Ontario, Canada
Posts: 3,512
Measure, measure, measure. Using the finished square plus 7/8 inch technique, I find that my HST's always need a touch of trimming. I have learned to square everything up to what your unfinished squares are supposed to be, before joining them to form the block. So much easier in the long run. Try another block, squaring things to 4 1/2 inches as you go and see what happens.
09-06-2011, 06:39 PM
#12
Super Member
Join Date: Aug 2010
Location: Piedmont Virginia in the Foothills of the Blue Ridge Mtns.
Posts: 8,562
One last suggestion to add: Always make the more pieced block sections first. In this case it would be the 4-patch section.
After you've made those, measure to be sure you've got the size required; if they aren't correct, look at your seam allowance. If you need to make corrections now, it'll only be in part of the block rather than the whole block.
THEN make your half square triangle sections using the 1" larger suggestion from MTS. These you can easily trim down.
By the way, I agree, rely on your ruler for measuring rather than your cutting mat, no matter what brand!
Jan in VA
After you've made those, measure to be sure you've got the size required; if they aren't correct, look at your seam allowance. If you need to make corrections now, it'll only be in part of the block rather than the whole block.
THEN make your half square triangle sections using the 1" larger suggestion from MTS. These you can easily trim down.
By the way, I agree, rely on your ruler for measuring rather than your cutting mat, no matter what brand!
Jan in VA
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