OH OH I cut anything that says say 3 7/8 inch blocks well I cut them 4" then I sew them together then trim the block down to that 3.5 inchs this is what your maybe not doing. also if you cut that only 3 7/8 and didnt go scant 1/4 inch seams you will have trouble ending up with 3.5 inchs when your down sewing that square together. I was given this tip by themamahauser early on and boy what a difference instantly to me. Jaba is right cut a tiny bit larger and also learn to love that scant quarter inch. just a smidge in front of your 1/4 measuring line in front on the machine. tape it! then you can see where a real quarter inch is and place the fabric right in front of it
