I got to work on these Delrin parts this morning, and I'm extremely pleased with how my new CAM system is working so far!
As mentioned in previous posts, I'm working on building a CAM template library inside of Fusion360 for specific sets of toolpath operations to speed up workflow and reduce the programming time. I'm taking my time making small tweaks to the program for these very basic 2.5 operation parts and ensuring everything works just like I want it with no changes done on the machine.
Once I got the first set of parts finished and CAM templates saved, I could do the second in about 30 minutes. Granted, they were almost identical, but the process of setting up the stock, machine coordinate system, and updating each toolpath from the template still would have taken me a pretty good amount of time to do from scratch.
I find the manufacturer's model increasingly useful and works surprisingly well even under small changes with updating all the reference geometry. It was also useful to set up programs even if you don't have all the information yet, like your stock material size. You can create a box around your material, setting the origin point to the center of your part, so when you scale it, it scales on all sides.
For this particular project, I'm using a double-sided tape workholding method to fixture my work on the table. The first operation consists of facing the top surface, doing the minimum amount of work necessary to get that side finished, and drilling the location pins. I'm using a grid fixture plate drilled with 1/4" holes and have my work zero set to one of the pins' center. This allows me to drill two location holes on the first side, then when I flip it over, I can use one as my work zero, and the other sets the rotational origin, giving me incredible accuracy.