[Lab] Laser cutter venting

Justin Slootsky justin at slootsky.org
Sun Jan 26 23:05:38 EST 2014

Great idea (the sucking rather than blowing the air). Any ideas on how to flick the fan on and off when the (220V) dryer is running? 

[ I have a planned project where I'd be venting when a device is on. I was going to be using one of those powerbars that turn the secondary plugs on and off based on the draw of the master plug (typically used for TVs and cable boxes etc) such as http://www.bestbuy.ca/en-CA/product/rocketfish-rocketfish-7-outlet-power-manager-with-surge-protector-rf-hts205-rf-hts205/10213206.aspx?path=016e55f582fd78f99b3f8740064b1bdeen02 ] 

----- Original Message -----

| From: "Matthew Bells" <matt at mbells.ca>
| To: "j ross" <waterfallclose at gmail.com>, "lab" <Lab at artengine.ca>
| Sent: Sunday, January 26, 2014 10:44:54 PM
| Subject: Re: [Lab] Laser cutter venting

| It is best to vent lasers with the fan at the outside, to keep the pressure
| in the duct lower than outside to ensure the fumes don’t leak into the room.
| If you do it this way, using the same hole for the dryer would work fine:
| make sure the fan is after the joint. You’ll also have to turn this fan on
| for the dryer.

| From: Lab [mailto:lab-bounces at artengine.ca] On Behalf Of j ross
| Sent: 2014.January.22 23:26
| To: lab
| Subject: [Lab] Laser cutter venting

| Just received my new laser cutter so next step is to setup the venting. Was
| thinking of doing a T or Y connection to the dryer vent but worried about
| some exhaust coming back into the dryer. Would like to avoid punching
| another hole in the outside wall just for the laser. Could hijack a basement
| window if needed. Hepa filter unit is possible but a last resort (drawing
| from the Modlab experience and cost).
| Any thoughts or experiences appreciated!

| Jeff

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