It’s funny that you state about it cutting metals then name some of the easiest metals to cut and only one ferrous metal(cast iron) that is also easy to cut. I also think you are really confused as to why box way machines are so much better. The are better because they are heavier and stiffer than most linear rail machines this it the opposite. Also cast iron has much better vibration dampening abilities than aluminum. Also if ballscrews weren’t the best why are the majority of machine tool manufacturers using them? It definitely ain’t cuz they are cheap because the high quality ones are quite expensive. Now saying this I think the project is awesome and for the price it’s great but you are making this sound like it’s better than a real industrial machine. It’s not that it there’s not if and or buts about it. This is a hobby machine that for a low price can let’s us get a taste of what can be done.
So please don’t spread your bs that linear rails and ballscrews are garbage and hobby level components that’s just nonsense.
The videos I saw were machines with linear ways and ballscrews making this machine very very few videos of this thing actually cutting. I get chatter on my fadal every now and then and it weighs quite a bit more yet none of the cuts on this machine ever produce chatter?????