Tip: magnets for keeping blast gates closed

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Forum topic by ADHDan posted 02-25-2014 03:59 PM 965 views 0 times favorited 1 reply Add to Favorites Watch
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800 posts in 2132 days

02-25-2014 03:59 PM

Topic tags/keywords: tip trick

I’m moving my dust collection line to the ceiling, and I wanted to mount my plastic blast gates upside-down to minimize the amount of dust that gets jammed into the bottom and prevents them from closing fully. The only problem is that the gates tended to fall into an open position.

So I epoxied tiny rare earth magnets to the gate frame and the gate, such that the magnets would keep the gate closed. I used a forstner bit to clear out indents to minimize the amount of plastic between the magnets and allow the gate to close without the magnet getting in the way. (I actually used tiny pieces of a magnet that had shattered on the gate; you could also just use a thin piece of metal.)

-- Dan in Minneapolis, woodworking since 11/11.

1 reply so far

View Mark Shymanski's profile

Mark Shymanski

5621 posts in 3737 days

#1 posted 04-13-2014 04:04 AM

Sounds like a good solution, is it working as expected?

-- "Checking for square? What madness is this! The cabinet is square because I will it to be so!" Jeremy Greiner LJ Topic#20953 2011 Feb 2

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