Very cool. I've collected a bunch of screen grabs & filed them in the 'one day' folder. Most of the kits or plans involve welding which I am not set up for yet. I have seen some semi-fabbed & no-weld bolt-togethers too. And then there are commercial ones which vary between expensive & crazy expensive... but a guy is sanding tomorrow, not a year from now at my pace, so choose your poison. I'm not a blade-maker guy so many of the more specialized fixtures would be of less value, but I can see using the variable angles & platen orientations & variable speed. Mostly I am impressed with how those things can consume metal & I use my smaller woodworking equivalent of that a lot.
Anyways, looks good. Look forward so seeing it in action.