Originally Posted by
Geri B
The only demo I know of where someone uses the lines on the mat for measuring, then uses the ruler as a a straight edge is our loved Jenny From MSQC, and I sort of squirm when she does it! All books I have ever read or demoes watched all else use the ruler for measuring and cutting.....but I may be wrong........I know F&Ps mat does not have lines for that reason......
Jenny is probably not making 3" or 4" blocks. She can wing it. But accuracy is important. I need the mat lines to line up fabric for rough-cut and right angles, but I measure from the rulers, always use the same brand.
I do not ever use the mat for oversize measurements. I put two rulers together side by side, and to check my math I put a third one on top of them going across, or use my carpenter's tape measure to double-check, so I don't accidentally have the 1/2" side in there twice!