I’d say 95% of my projects use 4 or less different tools.
I’m always trying to design in a way that keeps the number of tools used in a program to a minimum.
Even though my programs often only use 1-4 tools, my ATC has 12 slots, and I’m wishing it was 16. Different types of parts will use a different set of tools.
My tool library in Fusion has about 50 tools. In any given month, I’d estimate I use 15-20 of them.
I’ve got six tool racks setup with my ATC. I’ve tried a couple times even with a 3D carving and software that allows for 3D bit step downs and you have to really want to, to use six. Enen if you incorporate a surfacing bit, compression, upcut and downcut bits it gets ridiculous just trying to use more than necessary. There is a different school of thought and thats to store every style bit you have all the time in tool-racks. That way you never need to do anything other than adding a replacement once one gets dull. There is really no perfect solution.
I was afraid that this was going to more complicated than I hoped for . Currently because I’ll having to glue multiple pieces to wood together. I’m think that I’ll be able to use the flattening bit as a starter, leaving the 4 positions in my incoming ATC, for the hard work