I am finally in the finishing stages of making the skateboard trucks, and I am incredibly pleased with the results I am getting!
I'd say that 90% of the time I've spent on this part has been trying to understand and testing out different toolpaths to see what would work the best, and the other 10% is creating the usable program. I initially used a ton of 3D adaptive toolpaths to clear out the material around the part. Still, after looking at some of the run times on the smaller endmills, I switched over to using the 3D pocket clearing method.
One huge time saver I found in Fusion that's helped with testing out different ways of milling is the "Create Derived Toolpath," which you can find found when you right-click the operation. What this does is it copies over all your existing settings to the new toolpath. For instance, let's say you have a 3D adaptive, and you have it at a specific orientation with a bounding box selected. Instead of going through all those settings again (includes cutting parameters), you can create a derived toolpath like a 3D pocket clearing with all the same settings copied over.
I'm now in probably the third or fourth iteration of my program and very pleased with my results so far. Thankfully these parts don't have a specific deadline, so my boss encouraged me to take my time and get things right, which has been super helpful with finding ideal workflows and creating templates for future projects. The fantastic thing about this piece is that I can reference it from here on out with other 5-axis and similar parts that might have unique features that are difficult to machine. This is the most prolonged period, and most mistakes I will make on this type of piece; there will be other difficulties, but I've gotten a good majority of them figured out.
The last thing I need to do with this part before it's finished is cut it off its base, which I will do tomorrow with a 1/4" ball endmill. The flat from one end of the base to the other is tapered, so I have to use a ball endmill to take very small stepdowns to finish and remove the web simultaneously. I'll be backfilling the opposite end with clay to prevent any vibrations while it's cutting the aluminum away.