Thanks for sharing but, this is absolutely absurd. Why the heck does anyone need this. I spray my blades with CMT blade cleaner and then scrub them with a brass brush. PERFECT!
Yeah, he says this in his video. He basically did it for the fun of it, i.e. to build a contraption to do the task for him. I agree it does only slightly automate what can already be done by hand. However, having said this, I can tell you that an almost identical type tool is used in biking that thoroughly cleans the bike chain WITHOUT removing the chain from the bike. You turn the pedal cranks backwards to make the gears move in it. It does a superb job of cleaning bike chains and is well worth it. Of course, these are only like $20, so not a big expense. As I understand it, Andrew isn't trying to sell these and in fact made the 3D printer files available for free if anyone else wanted to try to build one. It is more for the fun of building it, than the practicality of it versus cleaning by hand.
I am sure Woodpeckers will have a stainless steel version of this thing by next year starting at $999 as a ONE Time tool.