Yeah, that grate would not work out here, first packed snow would stop it dead. Sit and Spin :-)
But yes, cool video, lots of work to make these, must have lots of free time?? Wonder what that is like!!
Yeah they have their limitations. The plow is too weak and the snowblower would be too dangerous with the augers exposed. I did have a vid of a remote control snowblower it was like 12" long it actually blew snow but it was a toy nothing you could really use. Toys like these can be fun.
"If you have more miles on your snow blower than your car, you live in New England." "If you can drive 75 mph through 2 feet of snow during a raging blizzard without flinching, you live in New England."