Working on the skateboard truck programming today and made some decent progress on it!
I've got the top portion roughed out and ready for the finishing toolpaths before moving my way down to the undersides of the wings to allow the most stability in the piece. One of the techniques I'm using that I haven't done before is taking advantage of the corner radius endmills to do many finishing toolpaths. Since many surfaces go from flat to slight curves, the bullnose endmills work really well when transitioning between them. There are two significant canyons in this piece that stumped me on how to clean out; if I used a square endmill, I would have to use a tiny one, which would add a ton of time to the operation. Alternately, if I used a ball endmill, I couldn't push it as hard and would have to take very light stepdowns. The use of bullnose endmills gives you the best of both worlds, and my runtime on that toolpath went from 20+ minutes down to 6.
Once I had the bulk of the material removed, I programmed a 1/4" ball endmill to clean off the surfaces of any significant steps or areas a smaller bullnose might have trouble with later.
I also did some more research on finishing toolpaths and have got some new tricks I want to try out taking advantage of the 3D contour and parallel toolpaths. I would continuously get small marks on my parts where the axis changed direction and cause the tool to jump slightly; nothing you could feel, but it was visible.