Here is the Log Cabin Trim Tool Two by Creative Grids. This is a great ruler for creating Log Cabin, Square in Square and Courthouse Steps blocks in 2 sizes! 6″ and 12″!
This is a Big ruler, measures 12-1/2″ square.
Creative Grids has a great video tutorial here: https://www.youtube.com/watch?v=yCKiixJry5o
The template slides easily over the fabric until pressure is applied. Then, our exclusive gripper holds the fabric in place while cutting, eliminating slipping and miss-cuts!
The template comes with fully illustrated step by step instructions or scan the QR Code printed on the template to view a video demonstration.