Machining an open .stl shell

[scottp55]

Yep Tailmaker....a little too spooky for me also!
He'll LIKE the smaller one though!!

Thanks for the warning also!
I'd forgotten until I went back to look at pics, that I'd skimmed Just enough of the top of that
White Birch(actually Yellow Birch sapwood)burl for what I "thought" was enough surface to CA.

But with burl being so porous AND being put on W Oak, my concentric "rings" of CA were enough to hold down for light passes,

But NOT enough to hold it still for RO 150G sanding;

as it came off(I'd forgotten).
Then lined up again, and did the entire thing again with "Thick" including enough to Squeeze Out;

resurface again, and sand to 600G and cut the fluting path "recess".
DID use a lot of CA G.
Thanks again for advice for Next time!
(and I'll remember NOW about 2 porous woods and CA!!)
scott