Yesterday I received a manufacturing proof copy of my new jig for setting lock miter bits. It was raw aluminum and had not received its colorful red anodizing, but it looked great anyway and worked fantastically. During the process of giving it a thorough wringing out, I came upon an additional capability! No release date yet, but it is getting closer!
A secondary set of reference lines on the Lock Miter Master allows you to easily create an offset locked miter joint- where the miter line is no longer at the corner. It can be shifted to either side of the miter line (see first pic) with a simple change in the setup before cutting one of the boards.
During yesterday's testing I discovered that if I adjusted the setup for an offset on both boards instead of just one, it would leave a nice little rabbet at the corner that can be filled with some type of contrasting colored spline up to 1/4" X 1/4" (maybe larger?). The insert can be left square or rounded. I didn't include a photo of the actual joint because it was hard to see so I drew it in SketchUp and added a spline.
Offset lock miter joint (dry fit) with a 1/8" offset:
Drawing of lock miter joints with a 1/4" X 1/4" rabbet that resulted from dual offsets:
A secondary set of reference lines on the Lock Miter Master allows you to easily create an offset locked miter joint- where the miter line is no longer at the corner. It can be shifted to either side of the miter line (see first pic) with a simple change in the setup before cutting one of the boards.
During yesterday's testing I discovered that if I adjusted the setup for an offset on both boards instead of just one, it would leave a nice little rabbet at the corner that can be filled with some type of contrasting colored spline up to 1/4" X 1/4" (maybe larger?). The insert can be left square or rounded. I didn't include a photo of the actual joint because it was hard to see so I drew it in SketchUp and added a spline.
Offset lock miter joint (dry fit) with a 1/8" offset:
Drawing of lock miter joints with a 1/4" X 1/4" rabbet that resulted from dual offsets: