[General] Laser Cutter Ventilation

Tue May 8 12:59:22 CDT 2012

Cool,

      Industrial safety recommendation; I know you are doing your best to
route to the outside, but in the event the exhaust is going to contact the
interior air of the building, I recommend that a charcoal filter be placed
in the exhaust duct upstream of the exhaust fan to absorb any fumes before
the air exits.

For commercial filters; they can usually go for as low as $25.00 a piece
and require replacement after 3 months of service:
http://tinyurl.com/6npk9yz (Search also 'charcoal air filters').

At the absolute cheapest, you can make your own
charcoal<http://www.instructables.com/id/How-to-Make-some-Charcoal/>
and
pack it loosely into a permeable cloth bag and stuff that into the exhaust
duct; akin to a survival water filter.

Looks cool man!

       - Ethan/spacefelix

On Tue, May 8, 2012 at 10:33 AM, John Kelly <candleknight at gmail.com> wrote:

> 1. I plan to attach it wherever I can. Eventually it'd be nice to have it
> go out through the roof or vent stack or wall or something. For now though,
> I'm just planning on routing it to the giant exhaust fan in the chemistry
> area to avoid having to deal with any facilities issues. Baby steps.
>
> 2. If I'm going to be taking donations to help fund this, then I plan on
> making this 'our' property. Unless we want to order it through ML256's
> amazon account for some kind of tax/ nonprofit perks reason, I was just
> planning on ordering it myself and donating it to the shop, so any money
> you want to chip in would count as a donation to ML256 if we do it right.
> I'm not sure of the exact logistics though. Might be easiest to have the
> shop reimburse me, and then we all make "unrelated" donations for our
> pledge amounts. Or something. Taxes are hard...
>
> -Candleknight
>
> (John Kelly)
>
>
> On Tue, May 8, 2012 at 12:00 PM, <general-request at lists.makerslocal.org>wrote:
>
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>> Today's Topics:
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>>   1. Re: Laser Cutter Ventilation (Bob)
>>   2. Re: Laser Cutter Ventilation (David Reimer)
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>> ----------------------------------------------------------------------
>>
>> Message: 1
>> Date: Tue, 8 May 2012 11:42:01 -0500
>> From: Bob <themostbob at gmail.com>
>>
>> To: General discussion about makerslocal
>>        <general at lists.makerslocal.org>
>> Subject: Re: [General] Laser Cutter Ventilation
>> Message-ID:
>>        <CAKPKm1TgJZc1spsoU=4B3W=
>> 9qMzCtk1oztjObgfLgVzbb7i-jg at mail.gmail.com>
>> Content-Type: text/plain; charset=UTF-8
>>
>>
>> I imagine you plan to attach to the building's vent stack?
>>
>> --
>> bk
>>
>> On Tue, May 8, 2012 at 11:36 AM, John Kelly <candleknight at gmail.com>
>> wrote:
>>
>> > For those of you too lazy to click the link, here's the cliffnotes
>> version
>> > of the "Finalized" Materials List:
>> > 1x 8" InLine blower Fan @ $120
>> > 3x 8" ducting @ $25 each = $75
>> > 1x Blower Speed Controller @ $22
>> > Total cost ? $217 ? $30 (for hookers and blow)
>>
>>
>>
>> ------------------------------
>>
>> Message: 2
>> Date: Tue, 8 May 2012 11:44:27 -0500
>>
>> From: David Reimer <davidreimerartist at gmail.com>
>> To: General discussion about makerslocal
>>        <general at lists.makerslocal.org>
>> Subject: Re: [General] Laser Cutter Ventilation
>> Message-ID:
>>        <
>> CACRhT7cWRcnS1xPPN25pgJDA1Z8PGZM0keqrV2Xi6vR4ZA3WAA at mail.gmail.com>
>> Content-Type: text/plain; charset="utf-8"
>>
>>
>> I definitely want to help fund this. What is this metaphorical hat I'll be
>> dumping money into? That is, would I be donating to Makers or to you
>> personally?
>>
>> David
>>
>>
>> On Tue, May 8, 2012 at 11:36 AM, John Kelly <candleknight at gmail.com>
>> wrote:
>>
>> > Hello all!
>> > A while back I was working on seriously upgrading the ventilation system
>> > for the laser cutter and electronics lab. I got through the design
>> phase,
>> > but sort of lost steam and interest just shy of actually ordering and
>> > installing the parts, in part due to a temporary hiatus I was taking
>> after
>> > getting 'burned out' playing with the laser cutter (pun intended). Well,
>> > now I'm back at it and the last time I tried to use the laser cutter it
>> > gave off some very stinky vapors, and after my throat started tingling I
>> > was acutely reminded of the need to finish this project. Respirator
>> masks
>> > shouldn't be required attire for the laser cutter room.
>> >
>> > I remember the first time I got really into using the laser cutter I
>> > started to develop a cough after a few weeks, and now sometimes just
>> being
>> > in the fab lab a few hours after someone has been cutting something, you
>> > can just sort of smell the death hanging in the air (only 'mostly'
>> > hyperbole). I addition to the laser cutter, this upgrade would also add
>> > ventilation and fume removal capabilities to the electronics work area
>> and
>> > soldering stations, whose fumes are less pungent and immediately
>> > irritating, but are still not exactly healthy and need to be taken care
>> of
>> > . I know some of us like to joke around about the "delicious fumes" and
>> > whatnot, but in all honesty this is a very real safety hazard that is
>> long
>> > past due to be dealt with.
>> >
>> > My picks for equipment, pricing, and some research notes and links are
>> on
>> > the wiki at the link below.
>> >
>> >
>> https://256.makerslocal.org/wiki/40_Watt_Laser_Cutter#Ventilation_Improvement
>> >
>> > For those of you too lazy to click the link, here's the cliffnotes
>> version of
>> > the "Finalized" Materials List:
>> > 1x 8" InLine blower Fan @ $120
>> > 3x 8" ducting @ $25 each = $75
>> > 1x Blower Speed Controller @ $22
>> > Total cost ? $217 ? $30 (for hookers and blow)
>> >
>> > *Anyone who wants to throw some money into the hat to help with the cost
>> > would be much appreciated!*
>>
>> >
>> > I'm hoping to start ordering parts/installing stuff latter this week-ish
>> > or next week.
>> >
>> > *coughcough**wheeeeeeze*
>> > -Candleknight
>> >
>> > (John Kelly)
>> >
>> > _______________________________________________
>> > General mailing list
>> > General at lists.makerslocal.org
>> > http://lists.makerslocal.org/mailman/listinfo/general
>> >
>>
>>
>>
>> --
>> David Reimer
>> 256-323-0853, davidreimerartist at gmail.com
>> Graphic Designer / Illustrator / Web Designer
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