[Lab] Laser Update

Richard Sloan rsloan at themindfactory.com
Thu May 23 15:43:05 EDT 2013

That is an exmample of the squirrel cage blower I was talking about and
might have in my hands shortly.....


On Thu, May 23, 2013 at 2:38 PM, Darcy Whyte <darcy at siteware.com> wrote:

> Not sure you need a vortex, the air from a laser is chemically dirty and
> not that physically dirty.
> Any old blower like this:
> http://www.ebay.com/itm/Reliance-1-3HP-Size-53-Duty-Master-Motor-C56H310N4-XU-with-New-York-Blower-Unit-/390560005343?pt=LH_DefaultDomain_0&hash=item5aef30bcdf
> For convenience the input hose size could match the exhaust hose on the
> machine. Also, I'd probably look for one with the output facing up or
> sideways instead of down since that one will probably have to overhang a
> ledge.
> I don't think you need much power or pressure difference. The cleaner on
> the artengine laser barely moves any air sometimes. As long as the air is
> moving. Although I noticed with a large workpiece it needs a stronger
> airflow.
> Here's the one that came with my laser:
> http://www.youtube.com/watch?v=AfQ8JjrX1SU
> That thing was overkill. The motor fried eventually and I traded it for a
> working one with Michael (good deal!). It was a little noisy and the one I
> got from Michael was from a fume hood from a kitchen or something. It's
> very quiet so now the only thing that makes noise is the @#$$$$%$#$@# air
> compressor for the air assist.
> I think my other blower fried because it was too big a blower. There was a
> bit too much drag for that high volume of air, perhaps I should have
> configured it to draw some air from the room too...
> --
> Darcy Whyte
> Art+ inventorArtist.com | Aviation rubber-power.com | Software Since '88
> siteware.com | Contact: darcy at siteware.com | 613-563-3634 by appointment
> | Canada N 45° 25'03.1" W 75° 42'21.4"
> On Thu, May 23, 2013 at 1:35 PM, <jweisberg at sympatico.ca> wrote:
>> Hi,
>> Did a little looking and found this:
>> http://www.sawmillcreek.org/showthread.php?143725-DIY-air-filtration-unit-for-lt-200&highlight=filtration
>> However, can't find any recommendations from Epilog as to suitable flow
>> rates and static pressure for a venting system. Britta, do you have any
>> info about this? Commercial filter systems seem to run 115cfm to 250 cfm
>> w/no mention of SP. What brand/model is the current filtration system?
>> Someone mentioned a vortex type system and that was one of my first
>> thoughts, however it's probably unnecessary as it's primary purpose is to
>> separate bulky waste from light dust to prevent a fine filter from
>> overloading. Sort of thing to use with a jointer/planer, tablesaw, or even
>> a router. For anyone who wants to build one for their own shop:
>> http://www.jpthien.com/cy.htm
>> John
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