Indeed, that’s some of mechanical challenges and possible solutions that I have considered if I was to cut a reducer. With the added… concerns (a) that I’m not very knowledgeable on the matter, (b) and that if I get it very wrong, I could potentially hurt myself or (c) damage the machine.
1F did a great job at delivering a simple but powerful system. And, as the journeyman demonstrates, the system can grow and evolve. The Z-axis appears as the least flexible aspect though: it is designed for the Makita router, period, as the limited clearance shows.
My original point in this thread is that I’d like to see more options besides the 80mm mount for spindle, and I’d love to see one targeting the 43mm euro neck. There are many tools in 43mm, including drills, which would open even more options for manufacturing!