[General] Laser Cutter Class Announcement: 1/31/12 @ 7:00pm

Thu Jan 26 12:13:15 CST 2012

Just cut it and live life on the edge.
On Jan 26, 2012 12:08 PM, "Ethan Chew" <spacefelix at gmail.com> wrote:

> Hello,
>
> On Thu, Jan 26, 2012 at 9:36 AM, Alice Scanland <alice.scanland at gmail.com>wrote:
>
>> David,
>>
>> You do bring up an interesting point here. If it is appropriate for the
>> person working on the project to be using a respirator is it ok for the
>> people also in the room to not be wearing a respirator?
>>
>
> Rule of thumb, if you can smell it, you should be wearing gear.
>  Analytically, if there is no barrier between you and the local work area
> that stops air transfer, or if you are not far away enough to not smell it,
> then you will also need gear.
>
>
>> I had noted that 2storyprops use respirators for some projects, but those
>> fumes are still in the room around the rest of us. Often times that work is
>> being done outside (which I'm sure helps) but the doors are usually open
>> and the smell certainly is wafting into the building. Is the danger also
>> wafting into the building?
>>
>
> If you can smell it, then hey.
>
>
>>
>> I don't understand the dangers from these things, I have not worked with
>> the mediums and therefore not looked into the safety. What are your
>> thoughts on this? Should I supply myself with a respirator for the times
>> when plexiglass is being cut, and bondo/fiberglass being worked?
>>
>
> Yes, your choices are to wear your gear or stay out of the area.  In most
> shop setups, it is typical to do the most noxious work when people are not
> around to reduce exposure.
>
>               - Ethan
>
> P.S. Take note, the dangers include fumes, dust and smoke.  Not all of
> which will be detectable by smell.  Also, for your reference, here are the
> industry (OSHA) standards for ventilation<http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=9734>and respiratory
> protection<http://www.osha.gov/pls/oshaweb/owadisp.show_document?p_table=STANDARDS&p_id=12716>
> .
>
>
>> Thank You,
>> Alii
>>
>>
>> On Thu, Jan 26, 2012 at 9:23 AM, David Reimer <
>> davidreimerartist at gmail.com> wrote:
>>
>>> Hey everyone. I just wanted to toss this out there in hopes that members
>>> become aware of other safety concerns with the laser cutter. A few people
>>> have been cutting plexiglass on the laser cutter, and when that happens, it
>>> vents out into the rest of the shop. Not only does it just smell bad, but
>>> the odor is actually toxic and harmful to breathe in. I'm aware that the
>>> cutter is set up to vent out of that area, but when dealing with toxic
>>> fumes, you can never be too safe, so I'd just like to encourage members who
>>> regularly work with plexiglass on the cutter to pick up an
>>> appropriately-rated respirator (not a dust mask, a *respirator*).
>>> 2StoryProps uses respirators when we work with our fiberglass and bondo. So
>>> I'd just like to encourage everyone to be safety-minded when burning
>>> plastic-based materials on the laser cutter.
>>>
>>> David Reimer
>>>
>>>
>>>
>>> On Thu, Jan 26, 2012 at 8:40 AM, David <ainut at knology.net> wrote:
>>>
>>>> **
>>>> I'm not a safety Nazi but there was no mention of the laser goggles on
>>>> the wiki.  Do we even have any?  Highly recommended whenever the beast is
>>>> in operation.
>>>>
>>>>
>>>> David Merchant
>>>>
>>>>
>>>>
>>>> Enabrin Tain wrote:
>>>>
>>>>  I think Candleknight did update the wiki page: (
>>>> https://256.makerslocal.org/wiki/40_Watt_Laser_Cutter)
>>>> /me applauds
>>>>  :-D
>>>>
>>>>    ------------------------------
>>>> *From:* Joshua Pritt <ramgarden at gmail.com> <ramgarden at gmail.com>
>>>> *To:* General discussion about makerslocal
>>>> <general at lists.makerslocal.org> <general at lists.makerslocal.org>
>>>> *Sent:* Wednesday, January 25, 2012 8:37 PM
>>>> *Subject:* Re: [General] Laser Cutter Class Announcement: 1/31/12 @
>>>> 7:00pm
>>>>
>>>>  I hope someone takes notes and puts it on the wiki!
>>>> On Jan 25, 2012 7:43 PM, "Justin Richards" <ratmandu at gmail.com> wrote:
>>>>
>>>> I've been experimenting with it a lot as well, but i'll be there also.
>>>> It's always good to see other peoples opinions and results with things
>>>>
>>>> On Wed, Jan 25, 2012 at 6:21 PM, WebDawg <webdawg at gmail.com> wrote:
>>>>
>>>> Ill be dere.
>>>>  On 25 Jan 2012 18:08, "Enabrin Tain" <enabrintain at yahoo.com> wrote:
>>>>
>>>>    according to the fount of all human knowledge:
>>>>
>>>>  Fiberglass:  yes, sans polymer (
>>>> http://www.cnczone.com/forums/laser_engraving_cutting_machines/46407-can_laser_cutter_cut_fiberglass.html
>>>> )
>>>> Carbon fiber: No (http://www.pololu.com/catalog/product/749)
>>>> Kevlar: Requires 1,500watts? (
>>>> http://www.ambox.com/laser-cutting/materials/kevlar.html)
>>>>                 I dunno about this one, there was very little about
>>>> Kevlar...
>>>>
>>>> [-CO-C6H4-CO-NH-C6H4-NH-]n doesn’t have any Cl in it, so experimenting
>>>> with a piece  shouldn't be disastrous. ;-)
>>>>
>>>>  All that said, ours is a 40W laser so there are things that could be
>>>> cut by a more powerful laser, that ours can't.
>>>>
>>>>      <<<snip>>>
>>>>
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>>>>
>>>
>>>
>>>
>>> --
>>> David Reimer
>>> 256-323-0853, davidreimerartist at gmail.com
>>> Graphic Designer / Illustrator / Web Designer
>>>
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>>>
>>
>>
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