Five files are provided.

1. Mitered box – this file contains the design and toolpaths to make the mitered box.
2. Box lip – this file creates the mating lip on the outside of the bottom portion of the box to hold the lid on.
3. Ribbon, first pass – this file contains the ribbon design. The ribbon is designed to be cut in two passes (one from the front, and one from the back) due to the thickness of the stock relative to the depth of cut of the Carbide 3D #112 1/16” bit.
4. Mirror pocket – this file contains the pocket to be machined to create the fixture for the backside pass to finish cutting the ribbon parts.
5. Ribbon, second pass – this is a mirrored version of the first pass, to finish the cutouts.

Instructions:

Mitered box note that stock is set to 0.4”, adjust if necessary. Z-zero is at wasteboard
• Thin stock (bit used: #201)
• Thin lid/bottom sections (bit used: #201)
• Lid relief: creates a lip on the lid to hold the lid on (bit used: #112)
• Top and bottom slots: Creates channels to hold the top and bottom panel (Bit used: #112)
• 45 degree cuts: miters the corners with a 90 degree V-bit (#301)
• Lid separate: frees the lid portions from the bottom portions (bit used: #112)
• Lid/bottom cutout and main cutout: cuts out everything, with tabs. (bit used: #102)

Box lip (z-zero is at stock top):
• Take the four side pieces and mount them with the angled corner cuts facing the wasteboard (this is the REVERSE side from the cuts made on them in the mitered box file). This toolpath creates the mating lip to the lid lip. Bit used: #102.
• Caveat: I used my table saw to make this lip and did not use this file. Be cautious!

Assemble the box with your preferred method of gluing and clamping. I used painter's tape at the corners.

Ribbon: I made the ribbon out of laminated walnut and maple. Adjust the ribbon cut depth accordingly based on the thickness of your ribbon stock. Note that you made need stock cleanup and flattening steps that are not included in these files!

Ribbon, first pass (z-zero at stock top): this file will cut halfway through the ribbon parts (design thickness 0.45”) and cut out a block for flipping and mounting for the second pass. Bits used: #112, #108. Tabs are used minimally. After cutting the first ribbon pass, cover the cut parts with masking tape to hold them in place for the next operation.

Mirroring and finishing the cut: Cut the mirror pocket in a piece of scrap. Flip the first pass ribbon cutout along its long axis and press firmly into the pocket. DO NOT REZERO THE X AND Y OF YOUR MACHINE AFTER CUTTING THE MIRROR POCKET. Rezero Z to the back side of the ribbon block. If you zero slightly above the surface, an onion skin will be left that will help hold the parts.

Run the ribbon, second pass file. Because the X and Y zeros were not touched the machine is referenced correctly to finish the cut.

Assembling the ribbon: some manual cleanup will likely be required. To create the diagonal ribbon pieces, I used a hand plane and shooting board. This could also be done with very careful setup on the CNC. Refer to the diagram for locations of each piece of the ribbon. Duplicates of all pieces are included in the ribbon file.