Surface grinder extraction unit - video

Surface grinder extraction unit. By Jon's Workshop. 32:03 video:

https://www.youtube.com/watch?v=Gasev4sXfQk


Previously:

https://www.homemadetools.net/forum/...427#post169790
https://www.homemadetools.net/forum/...576#post182203

Mk1? Extractor?
:beer2: :popcorn: :beer2:
Ohhhhh, dust extractor.......:(

Was all settled in for a spot of Lee-Enfield gunsmithing.

ToolMaker, my worry, seeing the edge of my mag table with grinding dust on it, and the sparks from the grind igniting them, I would worry about a huge glowing mass of metal in the vacuum. I don't want to burn my shop down. Seems some sort of right angle bend like the old oil bath filters from the 1950s autos would be needed to prevent such fires. The idea to quench the spark cold.

Having performed some heavy grinding, I've never seen it fully ignite. Even shielding with paper, no flames. It is hot enough to melt some thermoplastics and bond [lightly] to ferrous material. As the collection tube won't have much a magnetic charge, it will be harder to collect thicker deposits.
It's more prevalent to accumulate on pedestal type machines than surfacing, because less interruptions and size of hot particles. I'd think about any fan driven collector drives enough air volume to cool grinding fines.
That same air volume would need high CFM to propel fines through weir baffling, lots will drop into the recesses.