One more template.... probably...
The Nut Sa.. HEART OMEGA, made simpler by the expedient of making the cutouts the diameter of a Forstner bit I have, rather than some random radius. This is still going to be really fragile. Any suggestions on how to stiffen this whole detail up appreciated. It will be three laminations, but still.... awfully pointy.
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Learning to cut MOP: A generous TB'er lent me this jewelers saw, surely the Avatar of all jeweler's saws, and used on the Crimson Guitars tutorials on MOP inlays. Predictably, it works like a dream, though I did break a few of the hair-fine #3 blades. I made the jig in about 10 minutes, good enough, and, using the lit magnifier I inherited from my Grandad, proceeded to hack away. I bought some rectangular pieces of MOP on Ebay, which in retrospect wasn't my brightest purchase. the stuff was inconsistent in thickness, tapering from around 1/8" to as little as 1/32" at some points along the edges. The idiot I bought them from shipped them, no padding, no bubble wrap, NADA, taped to apiece of paper and stuffed into a plain letter envelope. Unsurprisingly, one of the pieces was cracked too. I had to do some careful arranging of my oval templates to keep it all on the thicker parts. Once again, a victim of my own inherent Cheapskatery.
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My technique... lacks precision, but I got all but one cut out in about 3 hours.
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One of the longer ovals at the 12th fret delaminated a little along the pointy end, not knowing what else to use, I grabbed the CA glue and hosed let it wick in, hopefully that will keep it intact. I have enough of the matching MOP to screw up (1) of the inlays, but not the 12th or 24th fret marker. At the Tool Lender's suggestion, I'll try a diamond file to gradually sneak these into perfect ellipses. 220 grit sandpaper works, but it clogs quickly.
STILL waiting for my purpleheart neck stringer stock, 4 weeks and counting! The Ebay vendor finally contacted me and let me know it was.. big surprise... a Covid related delay. Sign O' the Times, I guess.
For the Heart Omega, I would not use a router to cut that delicate section. I would cut as close to the line as possible with your bandsaw, then use a ROSS (if you have one) or files and sandpaper. It will take longer but well worth it.
As for the strength, since you are making a hippy sandwich, the body should hold up especially if you orient the grain so it can gain some strength. Obviously you will need to be super careful not to set the bass down on the delicate part of its anatomy!
The MOP inlays look amazing! Glad the saw helped!

maybe the blurry pic will make this bass unrecognizable) 

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