I have an arch I'd like to cut with a straight bit, just a
single swoop with the Z axis changing as the bit travels along
the Y axis. I have a few instances of this. The first is in fret
slots. I want to follow the fingerboard radius. The other
instance is in a truss rod slot. It'd be easy to draw the curve
in 2D and somehow transpose it to the Z axis. Any cheats on how
to do this? Easiest way is to draw your 2d arc in the XY plane,
then Rotate it to the YZ plane, (you can try to draw it in the
YZ plane, but the coords are very hard to follow) then use 3D
Engrave to follow it with a toolpath. Play with the depth
setting until you understand what's happening. FWIW, someone
else had the same app. but wanted to be able to ruf without
burying the little cutter too deep. That solution required
modeling the slot to slightly larger than cutter width and using
Slice Planar with a Step Down distance defined. Yep, Claude is
right on the money there. The 3D Engrave feature would be good
for that. 3D Engrave? Is that a p