Dust Sentry alternative?

[Jeff Johnson]

Oneida sells a "Dust Sentry" which will put on a warning light when your sawdust gets to a certain level (google it).  It costs $150.  The reason it's important to have, is that with our current dust system, if the bin gets too high, all the dust clogs up our pricey filter.

I've been researching sensors that would work with an Arduino for this, but most of them are IR, and I don't know if they'd work in an environment that dust might block the receiver.

If you know of a better type of sensor that would do this, let me know.  If you want to make one cheaply, you'd make a killing selling it to the woodworkers out there compared to the $150 Dust Sentry.

[Jeff Johnson]

FYI, here's the off the shelf product I spoke of:  https://www.oneida-air.com/inventoryD.asp?item_no=AXB999110B

[Jeff Johnson]

Yeah, A pressure sensor might do the trick too, though it's possible you might get a false positive when the blower is running and it's pushing air down.  Of course, a distance sensor of the sawdust might have the same issue.

On Sun, Jul 9, 2017 at 12:06 PM, Michael Rowland <mic...@escapeexperiencechattanooga.com> wrote:

How about a weight or pressure sensor under the whole unit?  I don't know how much a big bag of sawdust weighs, but you could play with it until it got close enough, and program an arduino to shut the power down (use a relay) if the weight or pressure got over a certain limit.

Just brainstorming out-loud.

Michael R.

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Michael Rowland michael@escapeexperiencechattanooga.com Escape Experience Chattanooga  (423) 551-3306  1800 Rossville Avenue, Suite 1Chattanooga, TN 37408  escapeexperiencechattanooga.com