Yesterday, I realised just how much I despise inlaying Maple. Short of cutting everything using a laser or CNC, it's stupidly-difficult to get nice perimeters on inlays. Being a couple of days at about -18C to -20C, I really didn't want to go out to Hobbylinna to buy some epoxy so I used thick CA. That might have been an error.
Pantograph setup. 7,5mm pilot with a 2,5mm burr cutter. I clamp the board with the pearl on it in different locations to extract 10mm x 5mm blocks. The template is a 30mm x 15mm scrap of Sapele since this is a 3:1 pantograph. The template was given a little additional allowance (just under a mm) both dimensions to compensate for the runout in the ('king terrible) Dremel's spindle.
The pockets were opened out using a 6mm and 4mm chisel until the inlay sits slightly higher than the radiused surface. The big problem as I see it is the limitations in how perpendicular the edges are from the chisel cuts. Even with them being as sharp as I am able to get them, there will always be a degree of compression in the wood, plus tearing and pulling. This isn't ideal. The first photo shows the problem well. The left and lower sides look reasonably good. The right has a small pull where a small chunk of the fibres likely flipped up instead of cut through cleanly. The upper edge will be sanded away until it's flat against the inlays of course.
The second photo shows that the edges of the pocket were slightly rounded. The CA filled in the gaps, but the gradient in the shadow implies that the surface crushed inwards slightly during excavation. I don't know how this will look once the entire board is inlaid and then radius sanded. This is still entirely unsanded and straight off the router.